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User Manual
WI-I/O-EX Serial I/O Module
Weidmuller Inc., 821 Southlake Blvd., Richmond, VA 23236
Tel: (800) 849-9343 Fax: (804) 897-4136 Email: [email protected]
Web: www.weidmuller.com
WI-I/O-EX Serial I/O Module
User Manual v1.11
Thank you for your selection of the WI-I/O-EX Serial I/O Module. We trust
it will give you many years of valuable service.
ATTENTION!
Incorrect termination of supply wires may cause internal damage and will void warranty.
To ensure your WI-I/O-EX product enjoys a long life,
double check ALL your connections with the User Manual
before turning the power on.
All equipment must be properly grounded for safe operation.
All equipment should be serviced only by a qualified technician.
Important Notice
Weidmuller, Inc. products are designed to be used in industrial environments, by
experienced industrial engineering personnel with adequate knowledge of safety design
considerations. These products should not be used in non-industrial applications, or lifesupport systems, without consulting Weidmuller, Inc. first.
Limited Lifetime Warranty, Disclaimer and Limitation of Remedies
Weidmuller, Inc. products are warranted to be free from manufacturing defects for the
“serviceable lifetime” of the product. The “serviceable lifetime” is limited to the
availability of electronic components. If the serviceable life is reached in less than three
years following the original purchase from Weidmuller, Inc., Weidmuller, Inc. will
replace the product with an equivalent product if an equivalent product is available.
This warranty does not extend to:
failures caused by operation of the equipment outside the particular product's
specification, or
use of the module not in accordance with this User Manual, or
abuse, misuse, neglect or damage by external causes, or
repairs, alterations, or modifications undertaken other than by an authorized
Service Agent.
Weidmuller, Inc.’s liability under this warranty is limited to the replacement or repair of
the product. This warranty is in lieu of and exclusive of all other warranties. This
warranty does not indemnify the purchaser of products for any consequential claim for
damages or loss of operations or profits and Weidmuller, Inc. is not liable for any
consequential damages or loss of operations or profits resulting from the use of these
products. Weidmuller, Inc. is not liable for damages, losses, costs, injury or harm incurred
as a consequence of any representations, warranties or conditions made by Weidmuller,
Inc. or its representatives or by any other party, except as expressed solely in this
document.
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CONTENTS
1 OVERVIEW ............................................................................................................... 4
1.1 MODULE TYPES AND FEATURES .........................................................................................5
1.1.1
Digital inputs / outputs................................................................................................6
1.1.2
Pulsed outputs.............................................................................................................6
1.1.3
Pulsed inputs...............................................................................................................7
1.1.4
Analog inputs..............................................................................................................7
1.1.5
Analog outputs............................................................................................................8
1.1.6
Communications .........................................................................................................9
2
INSTALLATION ..................................................................................................... 10
2.1 GENERAL INSTALLATION .................................................................................................10
2.1.1
Power Connection.....................................................................................................10
2.1.2
Address Switches......................................................................................................10
2.2 SIGNAL CONNECTIONS .....................................................................................................12
2.2.1
Digital Inputs (and Pulsed Inputs) ............................................................................12
2.2.2
Digital Outputs (and Pulsed Outputs).......................................................................13
2.2.3
Analog Inputs............................................................................................................13
2.2.4
Analog Outputs.........................................................................................................17
3
CONFIGURATION ................................................................................................. 20
3.1
3.2
4
ADD A RADIO MODULE TO CONNECT THE WI-I/O-EX TO THE RADIO NETWORK.............20
ADD THE SERIAL MODULE ...............................................................................................20
HARDWARE CONFIGURATION........................................................................ 23
4.1 CONNECTING TO THE WI-I/O-EX MODULE......................................................................23
4.2 CONFIGURATION COMMON TO ALL MODULES .................................................................24
4.2.1
Communications .......................................................................................................24
4.2.2
Pulsed outputs...........................................................................................................25
4.3 WI-I/O-EX-11 CONFIGURATION ......................................................................................26
4.3.1
Pulsed Inputs.............................................................................................................26
4.4 WI-I/O-EX-12 CONFIGURATION ......................................................................................27
4.4.1
Voltage input ............................................................................................................27
4.4.2
Current input.............................................................................................................30
4.5 WI-I/O-EX-13 CONFIGURATION ......................................................................................33
4.5.1
Voltage output ..........................................................................................................33
4.5.2
Current output...........................................................................................................35
5
OPERATION............................................................................................................ 37
5.1
5.2
5.3
5.4
WI-I/O-EX-11 MODULE ...................................................................................................37
WI-I/O-EX-12 MODULE ...................................................................................................39
WI-I/O-EX-13 MODULE ...................................................................................................40
HEXADECIMAL REPRESENTATION OF VOLTAGE AND CURRENT LEVELS ..........................42
APPENDIX A. MODBUS ADDRESS MAP................................................................. 43
A.1. WI-I/O-EX-11 .....................................................................................................................43
A.2. WI-I/O-EX-12 .....................................................................................................................45
A.3. WI-I/O-EX-13 .....................................................................................................................47
APPENDIX B. MODBUS FUNCTIONALITY............................................................ 49
APPENDIX C. COMMS RECOVERY ........................................................................ 50
APPENDIX D. SPECIFICATIONS .............................................................................. 53
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APPENDIX E. RS232 WIRING .................................................................................... 55
1 Overview
The WI-I/O-EX modules are designed to provide I/O expansion for other products like
WI-I/O 9, WI-MOD-9-E and WI-MOD-E modules. The WI-I/O-EX modules support the
WI Series protocol, and communicate serially via RS232 or RS485. Configuration is
done via the WI Series configuration utility.
The WI-I/O-EX modules also support ModBus protocol. They may be used as a ModBus
slave with any 3rd-party ModBus device, or with the WI-GTWY modules using ModBus.
They support both ModBus ASCII protocol, and serial un-signed ModBus RTU, also
known as “ModBus binary”. The ModBus slave address of the WI-I/O-EX is selected via
two rotary switches on the bottom panel of the case.
All WI-I/O-EX models provide digital inputs and outputs. Specific models provide
analog inputs or analog outputs. Pulsed inputs and pulsed outputs are also available.
Several modules may be connected to one master, allowing any combination of I/O types.
Figure 1-1 shows a diagram of a WI-I/O-EX module with parts labelled.
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Status LEDs
RS485 and
power connector
Address switches
RS485
termination
switch
I/O connector
RS232 configuration
connector
DIN rail mount
Power
OK
Transmit
Receive
Analog
configuration
access panel
Figure 1-1: WI-I/O-EX unit with significant parts labeled.
Two ports allow configuration and communications on the WI-I/O-EX. The RS232 port
is intended for configuration. The RS485 port allows the unit to be in a multi-drop
configuration.
Overvoltage protection and supply monitoring is provided to minimize the risk of failure
due to faulty connections or supply surges.
1.1 Module types and features
The module types and I/O are summarized in Table 1-1.
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WI-I/O-EX
-11
-12
-13
Digital inputs/outputs
Up to 16
Up to 8
Up to 8
Pulse outputs
8
8
8
Pulse inputs
4
-
-
Analog inputs
-
4 floating or 8 commoned
-
Analog outputs
-
-
8
Table 1-1: Summary of WI-I/O-EX module types and I/O.
1.1.1 Digital inputs / outputs
Each digital I/O channel on the WI-I/O-EX modules can act as either an input or an
output. The input/output direction does not need to be user configured.
Digital inputs are suitable for voltage-free contacts, or NPN-transistor switch devices.
Digital outputs are open-collector transistor outputs, able to switch loads up to 30VDC,
200mA.
If you have wired an input/output channel as an input, it is recommended that you do not
write values to it as an output. No electrical damage will occur if you attempt to use a
channel wired as an input as an output, or vice-versa, however the I/O system will not
operate correctly.
We recommend that the required digital inputs be assigned consecutively from channel 1.
Then use the remaining channels as digital outputs.
1.1.2 Pulsed outputs
The first eight digital channels on each WI-I/O-EX module can be used as pulse outputs.
The maximum output frequency is 100Hz.
A pulse output on the WI-I/O-EX will output the number of pulses equal to the register
value sent by the master. When the master sends a new register value, the WI-I/O-EX
will output additional pulses until the output count is the same as the new value.
Three register values are associated with creating each pulsed output:
• The Count keeps a tally of how many pulses have been output - this is a 16-bit
register and overflows to 0.
• The Target is set by the master, and is the trigger for pulses to be created. The
digital channel outputs pulses until the Count value reaches the Target value. If
the Target register is set to 0, the pulses stop and the Count register is cleared.
• The Update Time is the interval in which the WI-I/O-EX expects to receive
updates to the Target value. The module will output enough pulses for the Count
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to reach the Target within the update time. The output pulse rate is determined by
the update time, and the difference between the count and the target.
If the calculated pulse rate is more than the maximum rate (100Hz), the WI-I/O-EX will
output pulses at the maximum rate. At the end of the update time, the count value will be
less than the target. The WI-I/O-EX will then calculate the new required pulse rate for
the next update period, based on the difference between Count and Target values.
If the calculated pulse rate is greater than around three times the maximum rate, pulses
are not output. The Count value will be set to the value of the Target without any pulses
output. Pulses will be output again when the calculated pulse rate falls within the
maximum possible rate.
1.1.3 Pulsed inputs
The first four digital channels on the WI-I/O-EX-1-S-11 module can be used as pulsed
inputs. The maximum input pulse frequency is 1 KHz.
The pulse input channel calculates two register variables, each of which can be read by
the master.
•
•
The Pulse Count is a count of the pulses detected on the channel since the WI-I/OEX powered up. The pulse input counts are 32-bit values (2 x 16-bit registers, a low
and a high register), and wrap around to zero on overflow.
The Pulse Rate is a measure of the rate of pulses detected on the channel. The pulse
rate value is decimal 16,384 (hex 4000) for zero rate and decimal 49,152 (hex C000)
for the maximum rate configured by the user. These zero and maximum values are
the same as 0% and 100% used for analog values. (See section 5.4 for hex to decimal
conversion.)
The maximum pulse input rate is set during configuration. The value is in pulses per
minute and is limited to 60000 (1 KHz), the maximum rate capable of the module.
1.1.4 Analog inputs
The analog inputs on the WI-I/O-EX-1-S-12 can be connected as either grounded singleended inputs or as floating differential inputs. The WI-I/O-EX-1-S-12 has eight
grounded inputs or four floating inputs.
•
Grounded single-ended inputs connect between the AIN terminal and the GND
terminal.
•
Floating differential inputs each take up two terminals. There are four differential
pairs on the WI-I/O-EX-1-S-12: [AIN1-AIN2], [AIN3-AIN4], [AIN5-AIN6], [AIN7AIN8]. For example, the first input is connected to terminals AIN1 (positive) and
AIN2 (negative).
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The two types of input cannot be mixed - all inputs must be either “grounded” or
“floating”.
Inputs can also be selected as mA current, or voltage input - all inputs must be the same,
either all current or all voltage. The scale of each analog input is chosen during hardware
configuration, with scale options as follows:
Voltage input scale options: [0 to 5V], [0 to 10V], [1 to 5V]
Current input scale options: [0 to 10mA], [0 to 20mA], [4 to 20mA]
For compatibility with E-Series modules, 4-20mA current is recommended. See section
4.4 for more information on compatibility.
The values on the analog input are decimal 16,384 (hex 4000) for minimum signal (0%)
and decimal 49,152 (hex C000) for maximum (100%).
The analog channel will measure over-scale, up to 150% which will have value 65,536
(hex FFFF). For 4-20mA signals, the channel will measure under-scale down to 0mA
which has a value of 8,192 (hex 2000). (See section 5.4 for hex to decimal conversion.)
The WI-I/O-EX-12 provides a 24V analog loop supply (“ALS”) for powering analog
loops.
1.1.5 Analog outputs
The WI-I/O-EX-1-S-13 has eight analog output channels and can be configured to output
voltage or current. For current signals, “source” or “sink” can be selected. The scale of
each analog output is specified during configuration, with scale options as follows:
Voltage output scale options: [0 to 5V], [0 to 10V], [1 to 5V]
Current output scale options: [0 to 10mA], [0 to 20mA], [4 to 20mA], source or sink
•
•
•
Voltage outputs are measured with respect to the ground terminal.
Current source outputs are measured with respect to the ground terminal.
Current sink outputs are measured with respect to the 24V “ALS” terminal.
Writing to the output register by the master produces the analog output. Minimum to
maximum signals (0 – 100%) are produced by register values from decimal 16,384 to
49,152 (hex 4000 - C000). (See section 5.4 for hex to decimal conversion.)
The analog channel can output over-scale, up to 150% corresponding to register value
65,536 (hex FFFF). For 4-20mA signals, the channel can output under-scale down to
0mA from a register value of 8,192 (hex 2000) or less. Note that the over-scale output is
limited by the maximum levels capable of the WI-I/O-EX module (12V or 24mA).
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1.1.6 Communications
The WI-I/O-EX modules have two communication ports: RS232 and RS485. The RS485
port communicates using E-Series protocol. Both ports support ModBus protocol.
The RS232 port is intended for configuration. The RS485 port is intended for normal
operation and can be used in a multi-drop setup.
There are two address switches on the base of the module. Setting both address switches
to 00 configures the module to use E-Series protocol on the RS485 port. When the
switches are set within the range 01-99, the module uses ModBus protocol on the RS485
port, with the ModBus address defined by the switches. Whenever these address switches
are changed the unit should be reset by disconnecting power.
When using E-Series protocol, the port settings are fixed at 9600 baud, 8 data bits, no
parity, 1 stop bit.
The ModBus communications settings are configurable as follows:
ModBus type: RTU, ASCII with 8 data bits, ASCII with 7 data bits. (Note that the
configuration software only supports ModBus RTU. A ModBus Master can select ASCII
protocol by writing to the appropriate register. See Appendix A.)
Baud rate: 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, 76800, 115200
Parity: none, odd, even
Stop bits: 1 or 2.
The modules are fitted with a termination switch for the RS485. Set this switch only on
the last module in a multi-drop RS485 configuration.
The WI Series software is used to configure the WI-I/O-EX modules as part of a network.
The hardware set-up for items such as expected pulse rates and analog signals is also
available through this software.
When used as a ModBus-only device, stand-alone configuration software (cfg_WI-I/OEX_Vx.xx.exe) is available to set up the modules. All required software may be
downloaded from the Weidmuller website (http://wireless.weidmuller.com).
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2 Installation
All connections to the module should be SELV only. Normal 110/220/240V mains
supply should not be connected to any input terminal of the module.
2.1 General installation
Several WI-I/O-EX modules may be connected to one master via RS485 multi-drop
connection as shown in Figure 2-1. Ensure there is good grounding between the WI-I/OEX units and the master. A 2.5 mm2 / 12 gauge earth wire is recommended.
Master
WI-I/O-EX
WI-I/O-EX
WI-I/O-EX
Figure 2-1: Several WI-I/O-EX units connected to a master.
2.1.1 Power Connection
The WI-I/O-EX modules require a 10.8-30 VDC ** power supply. This is supplied to the
4-way connector, shown in Figure 2-2.
B A
- +
Figure 2-2: Power and RS485 connector. Connect 10.8-30 VDC** to + and earth to -.
Connect RS485 to B and A.
** Model Dependent. Check rear label for actual operating voltages
2.1.2 Address Switches
The address switches are found on the bottom panel of the module, as shown in Figure
2-3. If you are using the WI-I/O-EX module with other modules WI-I/O 9, WI-MOD-9-E
and WI-MOD-E modules), the address switches must be set to “00”. This enables ESeries protocol mode.
If you are using a ModBus Master device, ensure each WI-I/O-EX connected to the same
ModBus master has a unique ModBus address.
Note that the module must be reset after changing the address switches.
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You can connect to an WI-GTWY-9-MD1 Module using either MODBUS protocol or ESeries protocol. E-Series protocol is easier to set up, and we recommend using this
protocol for most applications.
x10
x1
Figure 2-3: Address switches. The address shown is 01.
Connect the RS485 B and A wires to the 4-way connector shown previously in Figure
2-2. An RS485 termination switch is provided. Terminate the last WI-I/O-EX module in
the multi-drop setup as shown in Figure 2-4.
Up = terminate
Down = unterminated ON
RS485
termination
switch.
Master
A
B
WI-I/OEX
WI-I/OEX
WI-I/OEX
A
A
A
B
B
B
Termination
switch up
(terminated)
120Ω
Figure 2-4: RS485 multi-drop connection and termination (only use external
termination for the master if it does not have internal termination).
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2.2
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Signal Connections
All connections to the module should be SELV only. Normal 110/220/240V mains
supply should not be connected to any input terminal of the module.
2.2.1 Digital Inputs (and Pulsed Inputs)
The WI-I/O-EX-1-S-11 supports 16 digital signals, and the WI-I/O-EX-1-S-12 and WII/O-EX-1-S-13 support 8 digital signals. Additionally, digital inputs DIO1-4 on the WII/O-EX-1-S-11 operate as pulse inputs.
Digital output signals share the same terminals as the Digital input signals, marked DIO18, and DIO1-16 on the WI-I/O-EX-1-S-11 module.
A digital input is activated by connecting to EARTH, either by voltage-free contact or by
a transistor switch. Refer to Figure 2-5:
WI-I/O-EX Module
V+
V+
DIO1
Voltage-free contact
DIO2
Transistor
switch device
EARTH
V-
Figure 2-5: Connection of digital inputs.
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2.2.2 Digital Outputs (and Pulsed Outputs)
The WI-I/O-EX-1-S-11 supports up to 16 digital outputs, shared with the digital input
function on the same terminals. The WI-I/O-EX-1-S-12 and WI-I/O-EX-1-S-13 both
provide 8 digital output signals. These signals are marked DIO1-8, and DIO1-16 for the
WI-I/O-EX-1-S-11. On all WI-I/O-EX modules, DIO1-8 can also operate as pulsed
outputs.
When active, digital outputs provide a transistor switch to EARTH. To connect a digital
output, refer to the diagram in Figure 2-6. A bypass diode is recommended to protect
against switching surges for inductive loads such as relay coils.
WI-I/O-EX Module
DIO1
DIO2
DC
Load
+
Max 30VDC
0.2A
V-
EARTH
_
Figure 2-6: Connection of digital outputs.
Note that digital outputs will only switch DC circuits, with maximum voltage 30VDC.
2.2.3 Analog Inputs
The WI-I/O-EX-1-S-12 provides eight grounded single-ended or four floating differential
analog inputs. These provide measurement of voltage signals (0-10V) or current (0-20
mA) signals. An internal 24V analog loop supply (ALS) is generated for current loops.
Refer to Section 4.4 for detail on configuring single-ended, differential, current-mode or
voltage mode inputs.
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2.2.3.1 Grounded Single-Ended mA Inputs
Single-ended current inputs allow twice as many inputs as the differential mode. This
mode is useful when the sensor loop can be grounded to the WI-I/O-EX module. Devices
may also be powered by the 24V supplied by the WI-I/O-EX. Refer to Figure 2-7:
Loop powered
sensor
-
+
WI-I/O-EX Module
ALS +24V
AIN1
AIN2
Externally powered
sensor
+
-
AGND
V-
Figure 2-7: Connection for single-ended current inputs. Transducers may be
externally powered or powered by the WI-I/O-EX +24V loop supply (ALS).
Note:
- The module is configured at the factory for this type of input
- To change the input configuration, refer to section 4.4
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2.2.3.2 Floating Differential Mode mA Inputs
Differential mode current inputs should be used when measuring a current loop which
cannot be connected to earth or ground. This allows the input to be connected anywhere
in the current loop. Common mode voltage can be up to 27VDC.
Up to four loops can be connected, to terminal pairs [AIN1-AIN2], [AIN3-AIN4],
[AIN5-AIN6], [AIN7-AIN8] - the former terminal is positive and the latter negative.
The diagram in Figure 2-8 indicates how to connect devices for differential mode current
inputs.
WI-I/O-EX-1-S-12 Module
ALS +24V
Loop powered
sensor
Power
supply
+
+
-
AIN1
AIN2
AIN3
AIN4
Externally powered
sensor
AGND
V-
Figure 2-8: Connections for differential current inputs.
Note:
- The module configuration needs to be changed for this type of input
- To change the input configuration, refer to section 4.4
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2.2.3.3 Floating Differential Voltage Inputs
Differential voltage inputs allow a voltage to be measured when it cannot be referenced
to earth or ground. The diagram in Figure 2-9 shows how to connect differential voltage
inputs. The module has a 27V common mode input range.
WI-I/O-EX-1-S-12 Module
ALS +24V
+
+
-
AIN1
AIN2
AIN3
AIN4
Sensors with
voltage signals
AGND
V-
Figure 2-9: Connection for differential voltage input mode.
Note:
- The module configuration needs to be changed for this type of input
- To change the input configuration, refer to section 4.4
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2.2.3.4 Single-ended Voltage Input
Single-ended voltage inputs allow twice as many inputs as differential mode. This mode
is useful when one end of the input voltage can be connected to the ground of the WI-I/OEX module. Figure 2-10 shows connections for single-ended voltage input.
WI-I/O-EX-1-S-12 Module
ALS +24V
Sensor with voltage
signal
AIN1
AIN2
+
AGND
V-
Figure 2-10: Connection for single-ended voltage input.
Note:
- The module configuration needs to be changed for this type of input
- To change the input configuration, refer to section 4.4
2.2.4 Analog Outputs
The WI-I/O-EX-1-S-13 provides eight analog outputs. These may be configured as
voltage or current outputs. The current output may be selected as “sink” or “source”
current.
Refer to Section 4.5 for detail on configuring analog outputs.
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2.2.4.1 Current Output
Current output mode may be configured for current source or current sink. Figure 2-11
shows the connections for current source mode. Figure 2-12 shows the connections for
current sink.
WI-I/O-EX-1-S-13 Module
ALS +24V
AI
AOT1
AOT2
+
V-
AGND
COM
PLC
-
Figure 2-11: Connection for current source output.
Note:
- The module is configured at the factory for this type of output connection
- To change the input configuration, refer to section 4.5
WI-I/O-EX-1-S-13 Module
AI+
ALS +24V
AOT1
-
+
AOT2
V-
AI-
PLC
AGND
Figure 2-12: Connection for current sink output.
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Note:
- The hardware configuration needs to be changed for this type of output
connection
- To change the hardware configuration, refer to section 4.5
2.2.4.2 Voltage Output
Voltage output mode produces a voltage referenced to the module’s AGND. Figure 2-13
shows the connection for voltage output configuration.
WI-I/O-EX-1-S-13 Module
PLC
VOLTAGE
INPUT
ALS +24V
AI
AOT1
AOT2
+
V-
AGND
COM
-
Figure 2-13: Connection for voltage output configuration.
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3 Configuration
Use the WI Series Configuration utility to configure the WI-I/O-EX module to
communicate to WI-I/O 9, WI-MOD-9-E and WI-MOD-E modules.
- If you want to communicate using ModBus, then simply set the address using the
address switches on the bottom of the module. Refer to section 2.1.2 for details on
setting the address switches
- Ensure the Address switches are set to “00” for E-Series protocol mode. Refer to
section 2.1.2 for details on setting the address switches.
The WI Series Configuration utility allows you to configure systems consisting of a
mixture of Module types. You can download this software from the Weidmuller web site
at (http://wireless.weidmuller.com)
3.1 Add a radio module to connect the WI-I/O-EX to the radio network.
To configure a Serial module you must first create configuration for a radio module – For
example a WI-I/O-9 module. This is the radio module you plan to connect the serial
module to.
-
3.2
Refer to your radio module user manual for an explanation on how to create the
radio module configuration.
Add the Serial Module
Once you have created the new radio module configuration, you can add the serial
module. Select the new radio module that you want to connect the WI-I/O-EX serial
module to, and select the “Serial Units” item. Select “Add a new Serial Unit” to create
the new configuration, or select “Load a New Serial Unit” to load the configuration from
an existing module. See Figure 3-1.
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Figure 3-1: Configuration of WI-I/O-EX modules using Configuration Utility.
When you select “Add a new Serial Unit”
you will need to select the unit type. Select
the correct module type here.
Figure 3-2: Select the unit type.
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Finally, you will be prompted to select the
module address. You can choose to allow
the configuration software to select an
unused address for you, or you can select
the module address manually.
- Serial Module address must be in the
range 96 to 127.
- Every serial module that is
connected to the same radio module
needs a separate address.
- You can use the same address on
two different serial modules if they
are connected to different radio
modules.
Figure 3-3: Select unit address.
Once you have added the new module you can configure it in the same way as for 105
series modules.
For more information on configuring these modules using the WI Series software, refer to
the WI-I/O-9 user manual.
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4 Hardware Configuration
Hardware Set-up allows the WI-I/O-EX hardware function to be adjusted to suit the
application. To configure the hardware settings, you need:
- Access to the DIP switches under the Analog Configuration Panel (refer Figure
1-1: WI-I/O-EX unit with significant parts labeled.)
- Configuration Software to run on your PC.
Configuration of the WI-I/O-EX modules is performed by either the dedicated WI-I/OEX configuration software (cfg_WI-I/O-EX_Vx.xx.exe), or by the WI Series
configuration software (from the Utilities / Advanced - SXM menu).
4.1
Connecting to the WI-I/O-EX module
To use the configuration software, perform the following steps:
• Connect the WI-I/O-EX to the PC COM port with a standard serial cable (straightthrough, DB9 female to DB9 male. See Appendix for wiring.)
• Set the address switches to 00
• Supply power to the WI-I/O-EX via the “+” and “-” terminals on the bottom of the
module (10.8-30 VDC **).
** Model Dependent. Check rear label for actual operating voltages
• Start the configuration software on your PC or laptop (cfg_WI-I/O-EX_Vx.xx.exe)
Figure 4-1: Main configuration screen.
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•
•
•
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Set the “Port” setting to match the computer com port you have connected to.
Set the “Slave Address” to match the address switch setting of the WI-I/O-EX. If you
are using address “00” for E-Series Protocol, set the Slave Address to 100.
Set the communications parameters. The default communications parameters are:
Baud rate: 9600
Parity: NONE
Stop bits: 1
Click the button labeled Connect to WI-I/O-EX.
If you are unable to communicate with the WI-I/O-EX, refer to Appendix C: Comms
Recovery.
If connection has been successful, several folder tabs will become available, depending
on the module type. The panel on the right-hand side of the form shows the WI-I/O-EX
detected and its settings.
4.2
Configuration common to all modules
4.2.1 Communications
Select the Comms folder tab. This page allows you to change the communications
settings of the WI-I/O-EX.
These settings are applied to both the RS-232 configuration port and to the RS-485
ModBus interface port.
Choose the required settings, then click Set comms. You will need to power off / on the
WI-I/O-EX for the new settings to take effect.
Figure 4-2: Communications configuration screen.
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Note that you will need to change the connection settings on the “Connect” page, and reconnect to the WI-I/O-EX.
4.2.2 Pulsed outputs
Choose the folder tab labeled Pulsed Outputs Setup, as shown in Figure 4-3.
Figure 4-3: Pulsed outputs setup page for a WI-I/O-EX-11. The pulsed outputs are
available on all models.
Clicking the button Read from WI-I/O-EX will read the pulse out update times from the
WI-I/O-EX and display them on the form.
The Pulse Out Update Times should be set to the approximate interval at which the WII/O-EX will receive updates to its pulse out target register. The pulse output circuitry will
attempt to generate pulses at a rate that will reach the target pulse count within the update
time. For example, if the ModBus master unit is configured to send the register value for
the pulse output channel every 1 minute, then the Update Time should be set to 1 minute.
The maximum allowed pulse out update time is 34 minutes 57 seconds. Set the update
times for each channel in hours, minutes, and seconds. An update time of zero will never
produce any pulses.
After the update times have been set, click the Save Update Times button.
The pulse output feature can be tested on the Check folder tab (refer section 5).
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WI-I/O-EX-11 configuration
4.3.1 Pulsed Inputs
Choose the Pulse Inputs Setup page, as shown in Figure 4-4.
Figure 4-4: Pulse inputs setup. Only available on a WI-I/O-EX-11 module.
Clicking the Read from WI-I/O-EX button reads the existing maximum pulse rate settings
from the WI-I/O-EX and displays them on the form.
If pulse rate is to be used, the maximum pulse input rate must be set. The pulse rate value
is calculated as a fraction of the maximum pulse input rate. Specify the maximum pulse
input rate in pulses per minute. The highest allowable pulse input rate is 60000 pulses per
minute, or 1kHz.
Once the maximum pulse rates are specified, click the Save Max Rates button to save the
data to the WI-I/O-EX module.
The pulse input feature can be tested on the DIO Check page (refer section 5.1).
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WI-I/O-EX-12 configuration
4.4.1 Voltage input
Voltage inputs may be selected in the scales 0 to 5V, 0 to 10V, or 1 to 5V. For each scale,
the minimum to maximum signal levels are represented by 4000 hex to C000 hex. Table
4-1 shows how the WI-I/O-EX-12 voltage readings translate to outputs in other wireless
products.
WI-I/O-EX12 Voltage
scale
0 to 5V
0 to 10V
1 to 5V
WI-I/O-EX12
Input voltage
(V)
0
5
0
10
0
1
5
WI-GTWY
Register value
(hex)
WI-I/O 9-1
Output current
(mA)
WI-I/O 9-3
Output current
(mA)
4000
C000
4000
C000
2000
4000
C000
4
20
4
20
0.5*
4
20
4
20
4
20
0
4
20
Table 4-1: Compatibility of WI-I/O-EX-12 voltage inputs with other products.
*
Reduced accuracy for less than 4mA in WI-I/O-9-1.
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4.4.1.1 Single-ended voltage input
If the WI-I/O-EX-1-S-12 is to measure voltage with respect to ground, choose the Singleended voltage input page, as shown in Figure 4-5.
Remove the access panel from the front of the WI-I/O-EX-1-S-12 case to
gain access to the dip switches. Replace the access panel after setting the
switches.
Set the switches according to the picture shown. The unit should be orientated with the
20-way connector towards you.
Figure 4-5: Setup page for single-ended voltage input.
Once the dip switches on the unit are set, tick the checkbox on the form, and click Save
configuration. Check the WI-I/O-EX Detected panel to ensure that the analog mode has
been updated (to Voltage, single-ended).
Clicking Read from WI-I/O-EX will read the scales out of the unit (if any) and display
them in the scales grid. Note that the dip switches should be set correctly for this result to
be relevant.
Choose the desired scale for each channel in the Scale box. Click the Save scales to WII/O-EX button, and check that the scales are updated in the WI-I/O-EX Detected panel.
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4.4.1.2 Differential voltage input
The WI-I/O-EX-1-S-12 can be configured to measure differential voltage. Neighbouring
channels serve as reference voltages in this mode. The four differential pairs are: AIN1AIN2, AIN3-AIN4, AIN5-AIN6, and AIN7-AIN8.
Choose the page to configure the WI-I/O-EX-1-S-12 for differential voltage input, as
shown in Figure 4-6.
Remove the access panel from the front of the WI-I/O-EX-1-S-12 case to
gain access to the dip switches. Replace the access panel after setting the
switches.
Set the switches according to the picture shown. The unit should be orientated with the
20-way connector towards you.
Figure 4-6: Setup page for differential voltage input.
Once the dip switches on the unit are set, tick the checkbox on the form, and click Save
configuration. Check the WI-I/O-EX Detected panel to ensure that the analog mode has
been updated (to Voltage, differential).
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Clicking Read from WI-I/O-EX will read the scales out of the unit (if any) and display
them in the scales grid. Note that the dip switches should be set correctly for this result to
be relevant.
Choose the desired scale for each channel in the Scale box. Click the Save scales to WII/O-EX button, and check that the scales are updated in the WI-I/O-EX Detected panel.
4.4.2 Current input
Current inputs may be selected in the scales 0 to 10mA, 0 to 20mA, or 4 to 20mA. For
each scale, the minimum to maximum signal levels are represented by 4000 hex to C000
hex. Table 4-2 shows how the WI-I/O-EX-12 current readings translate to outputs in
other wireless products.
WI-I/O-EX12 Current
scale
0 to 10mA
0 to 20mA
4 to 20mA
WI-I/O-EX12
Input current
(mA)
0
10
0
20
0
4
20
WI-GTWY
Register value
(hex)
WI-I/O 9-1
Output current
(mA)
WI-I/O 9-3
Output current
(mA)
4000
C000
4000
C000
2000
4000
C000
4
20
4
20
0.5*
4
20
4
20
4
20
0
4
20
Table 4-2: Compatibility of WI-I/O-EX-12 current inputs with other products.
*
Reduced accuracy for less than 4mA in WI-I/O 9-1.
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4.4.2.1 Single-ended current input
The WI-I/O-EX-1-S-12 can also measure current input. To measure current with respect
to ground, choose the Single-ended current input page, as shown in Figure 4-7.
Remove the access panel from the front of the WI-I/O-EX-1-S-12 case to
gain access to the dip switches. Replace the access panel after setting the
switches.
Set the switches according to the picture shown. The unit should be orientated with the
20-way connector towards you.
Figure 4-7: Setup page for single-ended current input.
Once the dip switches on the unit are set, tick the checkbox on the form, and click Save
configuration. Check the WI-I/O-EX Detected panel to ensure that the analog mode has
been updated (to Current, single-ended).
Clicking Read from WI-I/O-EX will read the scales out of the unit (if any) and display
them in the scales grid. Note that the dip switches should be set correctly for this result to
be relevant.
Choose the desired scale for each channel in the Scale box. Click the Save scales to WII/O-EX button, and check that the scales are updated in the WI-I/O-EX Detected panel.
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4.4.2.2 Differential current input
The WI-I/O-EX-1-S-12 can be configured to measure differential current. The differential
pairs are: AIN1-AIN2, AIN3-AIN4, AIN5-AIN6, AIN7-AIN8. To use this configuration,
choose the differential current input page, as shown in Figure 4-8.
Remove the access panel from the front of the WI-I/O-EX-1-S-12 case to
gain access to the dip switches. Replace the access panel after setting the
switches.
Set the switches according to the picture shown. The unit should be orientated with the
20-way connector towards you.
Figure 4-8: Setup page for differential current configuration.
Once the dip switches on the unit are set, tick the checkbox on the form, and click Save
configuration. Check the WI-I/O-EX Detected panel to ensure that the analog mode has
been updated (to Current, differential).
Clicking Read from WI-I/O-EX will read the scales out of the unit (if any) and display
them in the scales grid. Note that the dip switches should be set correctly for this result to
be relevant.
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Choose the desired scale for each channel in the Scale box. Click the Save scales to WII/O-EX button, and check that the scales are updated in the WI-I/O-EX Detected panel.
4.5
WI-I/O-EX-1-S-13 configuration
4.5.1 Voltage output
Voltage outputs may be selected in the scales 0 to 5V, 0 to 10V, or 1 to 5V. For each
scale, the minimum to maximum signal levels are represented by 4000 hex to C000 hex.
Table 4-3 shows how signals from other wireless products translate to WI-I/O-EX-13
voltage levels.
WI-I/O-EX-1S-13
Voltage scale
WI-I/O 9-1
Input current
(mA)
WI-I/O 9-2
Input current
(mA)
WI-GTWY
Register value
(hex)
0 to 5V
4
20
4
20
N/A*
2*
4
20
4
20
4
20
0
2
4
20
4000
C000
4000
C000
2000
3000
4000
C000
0 to 10V
1 to 5V
WI-I/O-EX-1S-13
Output voltage
(V)
0
5
0
10
0
0.5
1
5
Table 4-3: Compatibility of other products with WI-I/O-EX-13 voltage outputs.
*
Reduced accuracy for less than 4mA in WI-I/O 9-1.
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To configure the WI-I/O-EX-1-S-13 for voltage output, select the page as shown in
Figure 4-9.
Remove the access panel from the front of the WI-I/O-EX-1-S-13 case to
gain access to the dip switches. Replace the access panel after setting the
switches.
Set the switches according to the picture shown. The unit should be orientated with the
20-way connector towards you.
Figure 4-9: Voltage output setup page.
Once the dip switches on the unit are set, tick the checkbox on the form, and click Save
configuration. Check the WI-I/O-EX Detected panel to ensure that the analog mode has
been updated (to Voltage).
Clicking Read from WI-I/O-EX will read the scales out of the unit (if any) and display
them in the scales grid. Note that the dip switches should be set correctly for this result to
be relevant.
Choose the desired scale for each channel in the Scale box. Click the Save scales to WII/O-EX button, and check that the scales are updated in the WI-I/O-EX Detected panel.
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4.5.2 Current output
Current outputs may be selected in the scales 0 to 10mA, 0 to 20mA, or 4 to 20mA. For
each scale, the minimum to maximum signal levels are represented by 4000 hex to C000
hex. Table 4-4 shows how signals from other wireless products translate to WI-I/O-EX1-S-13 current levels.
WI-I/O-EX1-S-13
Current scale
WI-I/O 9-1
Input current
(mA)
WI-I/O 9-2
Input current
(mA)
WI- GTWY
Register value
(hex)
WI-I/O-EX-1S-13
Output current
(mA)
0 to 10mA
4
4
4000
0
20
20
C000
10
0 to 20mA
4
4
4000
0
20
20
C000
20
4 to 20mA
N/A*
0
2000
0
2*
2
3000
2
4
4
4000
4
20
20
C000
20
Table 4-4: Compatibility of other products with WI-I/O-EX-1-S-13 voltage outputs.
*
Reduced accuracy for less than 4mA in WI-I/O 9-1.
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To configure the WI-I/O-EX-1-S-13 for current output, select the page as shown in
Figure 4-10.
Remove the access panel from the front of the WI-I/O-EX-1-S-13 case to
gain access to the dip switches. Replace the access panel after setting the
switches.
Set the switches according to the picture shown. The unit should be orientated with the
20-way connector towards you.
Figure 4-10: Current output setup page.
Once the dip switches on the unit are set, tick the checkbox on the form, and click Save
configuration. Check the WI-I/O-EX Detected panel to ensure that the analog mode has
been updated (to Current).
Clicking Read from WI-I/O-EX will read the scales out of the unit (if any) and display
them in the scales grid. Note that the dip switches should be set correctly for this result to
be relevant.
Choose the desired scale for each channel in the Scale box. Click the Save scales to WII/O-EX button, and check that the scales are updated in the WI-I/O-EX Detected panel.
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5 Operation
5.1 WI-I/O-EX-11 module
The I/O terminal block for the WI-I/O-EX-1-S-11 is shown in Figure 5-1.
DIO DIO DIO DIO DIO DIO DIO DIO
DIO DIO DIO DIO DIO DIO DIO DIO
1
2
3
4
5
6
7
8 Earth Earth 9
10
11
12
13
14
15
16 Earth Earth
Figure 5-1: I/O terminal block for WI-I/O-EX-1-S-11.
Pulse inputs coincide with DIO terminals 1-4. Pulse outputs coincide with DIO terminals
1-8.
The operation of the digital I/O may be confirmed using the configuration software. Start
the software as described in section 4, and choose the DIO Check page as shown in
Figure 5-2.
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Figure 5-2: Check the operation of the WI-I/O-EX-11 module using the DIO Check
page.
Test the digital outputs by setting the select-buttons to ON or OFF - this will force the
DO to the selected state.
Digital inputs are reflected in the software by blacking (ON) or greying (OFF) of the
associated label in the Digital Inputs column.
The pulsed input count values are shown, as well as the pulse rate. The rate can be
viewed in decimal or hexadecimal and represents a fraction of the maximum pulse rate,
where hex 4000 is 0% and hex C000 is 100% of the maximum pulse rate.
The pulse output count values are also shown. The pulse out target may be set by clicking
the Edit Targets button. Pulses will be produced until the count reaches the target.
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5.2 WI-I/O-EX-1-S-12 module
The I/O terminal block for the WI-I/O-EX-1-S-12 is shown in Figure 5-3.
DIO DIO DIO DIO DIO DIO DIO DIO
ALS AI+1 AI-1 AI+2 AI-2 AI+3 AI-3 AI+4 AI-4 A ALS
1
2
3
4
5
6
7
8 Earth +24 AI 1 AI 2 AI 3 AI 4 AI 5 AI 6 AI 7 AI 8 GND +24
Figure 5-3: I/O terminal block for WI-I/O-EX-1-S-12.
Pulse outputs coincide with DIO terminals 1-8.
The operation of the WI-I/O-EX-1-S-12 may be confirmed using the configuration
software. Start the software as described in section 4, and choose the AIN Check page as
shown in Figure 5-4.
Figure 5-4: Check the operation of the WI-I/O-EX-1-S-12 module with the AIN
Check page.
Test the digital outputs by setting the select-buttons to ON or OFF - this will force the
DO to the selected state.
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Digital inputs are reflected in the software by blacking (ON) or greying (OFF) of the
associated label in the Digital Inputs column.
The pulse output count values are also shown. The pulse out target may be set by clicking
the Edit Targets button. Pulses will be produced until the count reaches the target.
The analog inputs can be viewed in decimal or hexadecimal and represents a fraction of
the analog signal, where hex 4000 is 0% and hex C000 is 100%.
In differential configuration, only the value of the first channel in the differential pair
shows the quantity being measured. The second channel of each differential pair should
be ignored.
5.3 WI-I/O-EX-1-S-13 module
The I/O terminal block for the WI-I/O-EX-1-S-13 is shown in Figure 5-5.
DIO DIO DIO DIO DIO DIO DIO DIO
ALS AOT AOT AOT AOT AOT AOT AOT AOT A ALS
1
2
3
4
5
6
7
8 Earth +24
1
2
3
4
5
6
7
8 GND +24
Figure 5-5: I/O terminal block for WI-I/O-EX-1-S-13.
Pulse outputs coincide with DIO terminals 1-8.
The operation of the WI-I/O-EX-1-S-13 may be confirmed using the configuration
software. Start the software as described in chapter 4, and choose the AOT Check page.
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Figure 5-6: Check the operation of the WI-I/O-EX-1-S-13 module using the AOT
Check page.
Test the digital outputs by setting the select-buttons to ON or OFF - this will force the
DO to the selected state.
Digital inputs are reflected in the software by blacking (ON) or greying (OFF) of the
associated label in the Digital Inputs column.
The pulse output count values are also shown. The pulse out target may be set by clicking
the Edit Targets button. Pulses will be produced until the count reaches the target.
The analog outputs can be viewed in decimal or hexadecimal and represents a fraction of
the analog signal, where hex 4000 is 0% and hex C000 is 100%.
The analog output values can be set by the user for testing, and the output signal
measured to confirm the analog operation. If you are using hexadecimal values (which is
the easiest) ensure the $ symbol precedes the value to denote a hex number.
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5.4 Hexadecimal representation of voltage and current levels
The voltage and current levels are represented as a fraction of the configured scale. 4000
hex represents the minimum level in the scale, and C000 hex represents the maximum
level in the scale.
Levels and their hex representation are summarized in Table 5-1 for easy reference.
Hex
value
0000
0800
1000
1800
2000
2800
3000
3800
4000
4800
5000
5800
6000
6800
7000
7800
8000
8800
9000
9800
A000
A800
B000
B800
C000
C800
D000
D800
E000
E800
F000
Percent
0.00%
3.13%
6.25%
9.38%
12.50%
15.63%
18.75%
21.88%
25.00%
28.13%
31.25%
34.38%
37.50%
40.63%
43.75%
46.88%
50.00%
53.13%
56.25%
59.38%
62.50%
65.63%
68.75%
71.88%
75.00%
78.13%
81.25%
84.38%
87.50%
90.63%
93.75%
Dec
value
0
2048
4096
6144
8192
10240
12288
14336
16384
18432
20480
22528
24576
26624
28672
30720
32768
34816
36864
38912
40960
43008
45056
47104
49152
51200
53248
55296
57344
59392
61440
Voltage scale
Current scale
0-5V 0-10V 1-5V 0-10mA 0-20mA 4-20mA
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
0.00
0.31
0.63
0.94
1.25
1.56
1.88
2.19
2.50
2.81
3.13
3.44
3.75
4.06
4.38
4.69
5.00
5.31
5.63
5.94
6.25
6.56
6.88
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
0.00
0.63
1.25
1.88
2.50
3.13
3.75
4.38
5.00
5.63
6.25
6.88
7.50
8.13
8.75
9.38
10.00
10.63
11.25
11.88
12.50
13.13
13.75
N/A
N/A
N/A
N/A
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
3.00
3.25
3.50
3.75
4.00
4.25
4.50
4.75
5.00
5.25
5.50
5.75
6.00
6.25
6.50
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
0.00
0.63
1.25
1.88
2.50
3.13
3.75
4.38
5.00
5.63
6.25
6.88
7.50
8.13
8.75
9.38
10.00
10.63
11.25
11.88
12.50
13.13
13.75
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
0.00
1.25
2.50
3.75
5.00
6.25
7.50
8.75
10.00
11.25
12.50
13.75
15.00
16.25
17.50
18.75
20.00
21.25
22.50
23.75
N/A
N/A
N/A
N/A
N/A
N/A
N/A
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.00
11.00
12.00
13.00
14.00
15.00
16.00
17.00
18.00
19.00
20.00
21.00
22.00
23.00
24.00
N/A
N/A
Table 5-1: Hex representation of voltage and current levels.
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February 2010
WI-I/O-EX Serial I/O Module
User Manual v1.11
Appendix A. ModBus address map
A.1. WI-I/O-EX-11
Data
Digital input 1
Digital input 2
Digital input 3
Digital input 4
Digital input 5
Digital input 6
Digital input 7
Digital input 8
Digital input 9
Digital input 10
Digital input 11
Digital input 12
Digital input 13
Digital input 14
Digital input 15
Digital input 16
Digital output 1
Digital output 2
Digital output 3
Digital output 4
Digital output 5
Digital output 6
Digital output 7
Digital output 8
Digital output 9
Digital output 10
Digital output 11
Digital output 12
Digital output 13
Digital output 14
Digital output 15
Digital output 16
Pulse input count 1
Pulse input count 2
Pulse input count 3
Pulse input count 4
Pulse input rate 1
Pulse input rate 2
WI-IO-EX Manual v1.11
ModBus I/O Type
Input status
Input status
Input status
Input status
Input status
Input status
Input status
Input status
Input status
Input status
Input status
Input status
Input status
Input status
Input status
Input status
Coil status
Coil status
Coil status
Coil status
Coil status
Coil status
Coil status
Coil status
Coil status
Coil status
Coil status
Coil status
Coil status
Coil status
Coil status
Coil status
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
ModBus
Addresses
10001
10002
10003
10004
10005
10006
10007
10008
10009
10010
10011
10012
10013
10014
10015
10016
00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
00014
00015
00016
30017 – 30018
30019 – 30020
30021 – 30022
30023 – 30024
30001
30002
Page 43
WI-I/O-EX Serial I/O Module
Data
*
Pulse input rate 3
Pulse input rate 4
Maximum input pulse rate 1
Maximum input pulse rate 2
Maximum input pulse rate 3
Maximum input pulse rate 4
Pulse output count 1
Pulse output count 2
Pulse output count 3
Pulse output count 4
Pulse output count 5
Pulse output count 6
Pulse output count 7
Pulse output count 8
Pulse output target 1
Pulse output target 2
Pulse output target 3
Pulse output target 4
Pulse output target 5
Pulse output target 6
Pulse output target 7
Pulse output target 8
Pulse out update time 1
Pulse out update time 2
Pulse out update time 3
Pulse out update time 4
Pulse out update time 5
Pulse out update time 6
Pulse out update time 7
Pulse out update time 8
Module supply voltage*
Serial port transmission mode
Serial port baud rate
Serial port parity and stop bit
User Manual v1.11
ModBus I/O Type
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Holding registers
Holding registers
Holding registers
Holding registers
Holding registers
Holding registers
Holding registers
Holding registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
ModBus
Addresses
30003
30004
30101
30102
30103
30104
30009
30010
30011
30012
30013
30014
30015
30016
40009
40010
40011
40012
40013
40014
40015
40016
30109
30110
30111
30112
30113
30114
30115
30116
30033
30201
30202
30203
0x4000 = 8V; 0xC000 = 16V
Page 44
February 2010
WI-I/O-EX Serial I/O Module
A.2. WI-I/O-EX-1-S-12
Data
Digital input 1
Digital input 2
Digital input 3
Digital input 4
Digital input 5
Digital input 6
Digital input 7
Digital input 8
Digital output 1
Digital output 2
Digital output 3
Digital output 4
Digital output 5
Digital output 6
Digital output 7
Digital output 8
Pulse output count 1
Pulse output count 2
Pulse output count 3
Pulse output count 4
Pulse output count 5
Pulse output count 6
Pulse output count 7
Pulse output count 8
Pulse output target 1
Pulse output target 2
Pulse output target 3
Pulse output target 4
Pulse output target 5
Pulse output target 6
Pulse output target 7
Pulse output target 8
Pulse out update time 1
Pulse out update time 2
Pulse out update time 3
Pulse out update time 4
Pulse out update time 5
Pulse out update time 6
Pulse out update time 7
Pulse out update time 8
Analog inputs 1
WI-IO-EX Manual v1.11
User Manual v1.11
ModBus I/O Type
Input status
Input status
Input status
Input status
Input status
Input status
Input status
Input status
Coil status
Coil status
Coil status
Coil status
Coil status
Coil status
Coil status
Coil status
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Holding registers
Holding registers
Holding registers
Holding registers
Holding registers
Holding registers
Holding registers
Holding registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
ModBus
Addresses
10001
10002
10003
10004
10005
10006
10007
10008
00001
00002
00003
00004
00005
00006
00007
00008
30009
30010
30011
30012
30013
30014
30015
30016
40009
40010
40011
40012
40013
40014
40015
40016
30109
30110
30111
30112
30113
30114
30115
30116
30001
Page 45
WI-I/O-EX Serial I/O Module
Data
*
+
Analog inputs 2
Analog inputs 3
Analog inputs 4
Analog inputs 5
Analog inputs 6
Analog inputs 7
Analog inputs 8
Module supply voltage*
Analog supply voltage (24V)+
Serial port transmission mode
Serial port baud rate
Serial port parity and stop bit
0x4000 = 8V; 0xC000 = 16V
0x4000 =12V; 0xC000 = 36V
Page 46
User Manual v1.11
ModBus I/O Type
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
ModBus
Addresses
30002
30003
30004
30005
30006
30007
30008
30033
30034
30201
30202
30203
February 2010
WI-I/O-EX Serial I/O Module
A.3. WI-I/O-EX-1-S-13
Data
Digital input 1
Digital input 2
Digital input 3
Digital input 4
Digital input 5
Digital input 6
Digital input 7
Digital input 8
Digital output 1
Digital output 2
Digital output 3
Digital output 4
Digital output 5
Digital output 6
Digital output 7
Digital output 8
Pulse output count 1
Pulse output count 2
Pulse output count 3
Pulse output count 4
Pulse output count 5
Pulse output count 6
Pulse output count 7
Pulse output count 8
Pulse output target 1
Pulse output target 2
Pulse output target 3
Pulse output target 4
Pulse output target 5
Pulse output target 6
Pulse output target 7
Pulse output target 8
Pulse out update time 1
Pulse out update time 2
Pulse out update time 3
Pulse out update time 4
Pulse out update time 5
Pulse out update time 6
Pulse out update time 7
Pulse out update time 8
WI-IO-EX Manual v1.11
User Manual v1.11
ModBus I/O Type
Input status
Input status
Input status
Input status
Input status
Input status
Input status
Input status
Coil status
Coil status
Coil status
Coil status
Coil status
Coil status
Coil status
Coil status
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Holding registers
Holding registers
Holding registers
Holding registers
Holding registers
Holding registers
Holding registers
Holding registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
Input registers
ModBus
Addresses
10001
10002
10003
10004
10005
10006
10007
10008
00001
00002
00003
00004
00005
00006
00007
00008
30009
30010
30011
30012
30013
30014
30015
30016
40009
40010
40011
40012
40013
40014
40015
40016
30109
30110
30111
30112
30113
30114
30115
30116
Page 47
WI-I/O-EX Serial I/O Module
Data
*
+
Analog outputs 1
Analog outputs 2
Analog outputs 3
Analog outputs 4
Analog outputs 5
Analog outputs 6
Analog outputs 7
Analog outputs 8
Module supply voltage*
Analog supply voltage (28V) +
Serial port transmission mode
Serial port baud rate
Serial port parity and stop bit
0x4000 = 8V; 0xC000 = 16V
0x4000 =12V; 0xC000 = 36V
Page 48
User Manual v1.11
ModBus I/O Type
Holding registers
Holding registers
Holding registers
Holding registers
Holding registers
Holding registers
Holding registers
Holding registers
Input registers
Input registers
Input registers
Input registers
Input registers
ModBus
Addresses
40001
40002
40003
40004
40005
40006
40007
40008
30033
30034
30201
30202
30203
February 2010
WI-I/O-EX Serial I/O Module
User Manual v1.11
Appendix B. ModBus Functionality
Table B-1 specifies the maximum query and response data parameters for the WI-I/OEX modules. See the Gould ModBus Protocol Reference guide (PI-MBUS 300 Rev
B) for more detail.
Function
code
Description
1,2
Read coil / input status
1160 coils / inputs
3
Read holding (output) registers
145 registers
4
Read input registers
145 registers
5
Force single coil
1 coil
6
Set single register
1 register
7
Read exception status
8 coils
8
Loopback test
N/A
9,10
NOT SUPPORTED
NOT SUPPORTED
11
Communications event counter
N/A
12-14
NOT SUPPORTED
NOT SUPPORTED
15
Force multiple coils
1160 coils
16
Set multiple registers
145 registers
17-255
NOT SUPPORTED
NOT SUPPORTED
Maximum Data
Size
Table B-1: Supported ModBus functions and limitations for WI-I/O-EX modules.
WI-IO-EX Manual v1.11
Page 49
WI-I/O-EX Serial I/O Module
User Manual v1.11
Appendix C. Comms Recovery
If the communications setting of the WI-I/O-EX has been forgotten or mistakenly set,
there is a way of recovering serial communications with the WI-I/O-EX. WI-I/O-EX
firmware versions 1.04 and earlier require ModScan to do this. With later firmware
versions, this can be done using the configuration software, cfg_WI-I/O-EX_Vx.xx.exe.
Procedure for recovering communications with recent firmware (V1.05 and later):
1. Set the ModBus address switches to 00. This fixes the communications setting to
ModBus RTU, 9600 baud, no parity, and one stop bit.
2. Connect a standard (straight-through) RS232 cable to the module and the PC.
3. Start the configuration software, cfg_WI-I/O-EX_Vx.xx.exe.
4. Set the slave address to 100.
5. Ensure the comms settings are 9600 baud, no parity, one stop bit.
6. Click Connect to WI-I/O-EX
7. The module should connect successfully.
8. Choose the Comms page and change the settings to the desired parameters.
9. If the module did not connect successfully, try the steps listed below for using
ModScan.
Procedure for recovering communications with firmware V1.04 and earlier:
1. Set the ModBus address switches to 00. This fixes the communications setting to
those specified in step 6.
2. Connect the RS232 port to the PC and start ModScan.
3. Supply power to the WI-I/O-EX.
4. In ModScan, set the following
- Address: 0201
- Length: 3
- Device ID: 100
- ModBus Point Type: Holding register
5. Click Connection / Connect.
6. Choose the appropriate COM port. Also choose
- Baud rate: 9600
- Word length: 8
- Parity: none
- Stop bits: 1
7. Click Protocol Selection. Choose STANDARD ASCII for Transmission mode. Click
OK, OK.
8. ModScan should connect to the module with no errors.
9. The registers displayed in ModScan represent the serial port settings that are used
when the address switches are set to other than 00, as follows:
Page 50
February 2010
WI-I/O-EX Serial I/O Module
Address
40201
40202
40203
User Manual v1.11
Description
Serial port transmission mode
Serial port baud rate
Serial port parity and stop bit
10. Use the tables below to work out the current communications settings, or write to the
registers using ModScan to change the settings to the desired values. Note that the
module transmission mode should be set to ModBus RTU.
ModBus address 40201, serial port transmission mode:
Setting
Register
Value
ModBus RTU
0x0101
ModBus ASCII, 8 data
0x0201
bits
ModBus ASCII, 7 data
0x0202
bits
ModBus address 40202, serial port baud rate:
Setting
Register
Value
1200
0x000C
2400
0x0018
4800
0x0030
9600
0x0060
14400
0x0090
19200
0x00C0
28800
0x0120
38400
0x0180
57600
0x0240
76800
0x0300
115200 0x0480
ModBus address 40203, serial port parity and stop bit:
Parity Setting
Register’s High Byte
Value
None
0x00
Odd
0x11
Even
0x22
Stop-bit
Setting
1 stop bit
2 stop bits
Register’s Low Byte
Value
0x11
0x22
WI-IO-EX Manual v1.11
Page 51
WI-I/O-EX Serial I/O Module
User Manual v1.11
11. Once the new comms setting are correct, be sure to change the address switches back
to a non-zero setting for normal operation.
Page 52
February 2010
WI-I/O-EX Serial I/O Module
User Manual v1.11
Appendix D. Specifications
EMC Approval
Operating temperature
range
Power supply
Supply current (idle 13.8V)
-11
-12
-13
Supply current for I/O
per digital input
per digital output
per analog input
per analog output
Loop supply
Loop supply max current
RS232 port
RS485 port
ModBus protocol
Transmission modes
Baud rates
Parity
Stop bits
Slave address
Default settings
EN 55024:1998
EN 61000-3-2: 2002
EN 61000-3-3: 2002
EN 55022: 1998
FCC Part 15
-40 to +60 deg C
10.8 – 30.0 VDC
13.8V / 24VDC nom
Model Dependent. Check
rear label for actual
operating voltages
100mA
100mA
120mA
13mA
13mA
50mA
50mA
24V nominal *
WI-I/O-EX-12 : 270mA
WI-I/O-EX-13 : 160mA
ModBus protocol
ModBus protocol
WI-Series protocol
ModBus ASCII 8 data bits
ModBus ASCII 7 data
bits**
ModBus RTU
1200; 2400; 4800; 9600;
14,400; 19,200; 28,800;
38,400; 57,600; 76,800;
115,200
Odd, even, none
1, 2
01 - 99
If slave address = 0
If using 24V loop supply
* Loop supply will follow
WI-I/O-EX-xx power
supply voltage above 24V
input.
** If no parity, use 2 stop
bits. If using parity, use 1
stop bit.
ModBus RTU, 9600, N, 1
Digital inputs
WI-IO-EX Manual v1.11
Page 53
WI-I/O-EX Serial I/O Module
User Manual v1.11
On-state voltage
Wetting current
Max pulse input rate
Minimum pulse width
Max pulse input count
<2.1VDC
5mA
1kHz
0.5mS
4294967295 (32-bit)
Digital outputs
Output voltage range
Output current max
Max pulse output rate
Max pulse output count
0-30VDC
200mA
100Hz
65535
Analog Inputs
Input voltage range
Voltage resolution
Input current range
Current resolution
Input impedance (voltage)
Input impedance (current)
Common mode voltage
range
Calibrated accuracy
0-12V
16 bits
0-24mA
16 bits
100k
100ohm
27VDC
0.10%
Analog Outputs
Output voltage range
Voltage resolution
Output current range
Current resolution
Calibrated accuracy
0-12V
12 bits
0-24mA
12 bits
0.10%
Total output current 160mA
Table D-1: WI-I/O-EX Specifications.
WI-I/O-EX-1-S
Digital
inputs/outputs
Pulse outputs
Pulse inputs
Analog inputs
-11
Up to 16
-12
Up to 8
-13
Up to 8
8
4
-
8
-
Analog outputs
-
8
4 floating / 8
commoned
-
8
Table D-2: WI-I/O-EX module types and I/O.
Page 54
February 2010
WI-I/O-EX Serial I/O Module
User Manual v1.11
Appendix E. RS232 Wiring
The RS232 connection to the WI-I/O-EX modules requires a standard straight-through
serial cable (modem cable). The wiring is shown in Figure E-1.
WI-I/O-EX
DB9
MALE
PC
DB9
FEMALE
Figure E-1: Wiring for RS232 cable for PC-WI-I/O-EX communications.
WI-IO-EX Manual v1.11
Page 55
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