Data Sheet

Shenzhen KYL Communication Equipment Co., Ltd
KYL-812 4-way Wireless I/O Module
I. Function description
4-way I/O wireless transmission in time. Receiver module’s relay output reacts to
transmitter module’s ON-OFF input in time. Once transmitter module inputs OFF, the
receiver module will output relay close correspondingly. Once transmitter module
inputs ON, receiver module’s relay will output open correspondingly. All the 4 ways
are independent to each other. No program, no wires, users can remote control
switching. This module is widely used in industrial controller, wireless monitoring,
waterworks automation and other projects.
Figure 1: input output relationship diagram
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II. Parameter
Table 1. Technical parameter
Name
Range
Power supply
9-15V
D.C.
Transmission
1-3km
distance
Output numbers
-
Typical value
12V
Remarks
Output current ≥500mA
-
LOS
4 outputs
Relay output
4 inputs
Passive contact inp
Low level<1V
Max load capacity:
DC 30V 1A
Low level close
High level>4.5V
High level open
Output type
-
Input numbers
Input type
-
Input type II
DC 0-12V
Transmitting
current
Receiving current
Dimension
-
300mA
-
-
30mA
82mm*82mm
-
III. KYL-812 terminal block introduction
Figure 2. Terminal block introduction
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IV. KYL-812 application example
Figure 3. application example
Transmitter signal can be a group of limit switch, button or a group of high/low level.
Receiving signal can be alarm light, motor, electric motor, valve or PLC.
V. DIP definition
Table 2: DIP5-8 working mode choosing
DIP 8
Transmission
Setting
mode choosing
Input
changes 0
trigger
transmitting mode
Fix
time 1
transmitting mode
DIP 7
DIP 6
DIP 5
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Master and slave Setting
choosing
Slave
0
Master
1
Collecting mode
Forbid
Setting
0
Enable
1
Repeater/feedba
ck mode
Forbid
Setting
Enable
1
0
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Description
At fix time transmitting
mode,
you must set a module as
master,another as slave
Description
Only be valid at fix time
transmitting mode (Slave module
will send response message after
receiving master’s signal)
Description
At collecting mode, module will
work as a Modbus slave.
Repeater/feedback,master/slave,
transmission mode are all invalid
Description
At feedback mode, transmitter
module can monitor receiver
module’s output condition
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Table 3: The corresponding channel for DIP 1-4
Ch.
No.
DIP
DIP
Ch.
No.
DIP
Ch.
No.
DIP
Ch.
No.
1
5
9
13
2
6
10
14
3
7
11
15
4
8
12
16
Notes:
* For most users "input changes trigger transmitting mode" is OK-----DIP7-ON
* To avoid interference caused by many pairs of modules working in the same place,
you are recommended to choose different frequency channels for different systems.
* At fixed time transmitting mode, there should be one module works as master and
another module as slave.
* changing the DIP switch just takes effect after the module is re-powered on.
VI. PIN Definition
Table 4: Terminal block’s PIN Definition
Pin name
Pin No.
Definition
COM1
COM2
1
2
1
2
3
4
5
6
7
8
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GND
VCC
IN1
GND
IN2
GND
IN3
GND
IN4
GND
Remarks
Power ground
DC:9-15V
The 1st ON-OFF input
The 2nd ON-OFF input
The 3rd ON-OFF input
The 4th ON-OFF input
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COM3
COM4
1
GND
2
3
LED1
GND
4
5
LED2
GND
6
7
LED3
GND
8
1
2
3
4
5
6
7
8
LED4
OUT1
OUT2
OUT3
OUT4
The 1st passive control line
output (5V)
The 2nd passive control line
output (5V)
The 3rd passive control line
output (5V)
The 4th passive control line
output (5V)
The 1st
relay dry contact
output
The 2nd relay dry contact
output
The 3rd relay dry contact
output
The 4th relay dry contact
output
VII. Using method
A. Install antenna for the module
B.Set the DIP switch ready according your application requirements, connect
corresponding ON-OFF input and output terminals.
C. Power supply on for modules(9-12V). Output current should be more than 500mA.
D. Now the transmitter module’s inputs can control the receiver module’s output.
E. Our modules support 2-way communication, means when a module works as input,
it can also works as output of the controlled side, and vice versa
F.To avoid interference, please choose different frequency channels for different
systems if there are more than 2 groups of modules using in the same area.
VIII. Working mode explanation
1. Input changes trigger transmitting mode
Any input changes happening will trigger the module send its condition. This
mode has the advantage of high speed, real-time transmission, and low power
consumption. Because module only transmits data once there is input changes.
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2. Fixed time transmitting mode
At this mode, there should be one master and one slave module. The master will
synchronize with the slave every 1s, means the master will transmits its condition
to slave every 1S and the slave will feedback its condition to master every 1S. If
the time master cannot synchronize with slave reaches at 3S, all contacts will
disconnect. They connects until the master is synchronizing with slave again.
There will be 1s transmission delay at this mode.
3. Collecting mode
At collecting mode, DIP8(transmitting mode), DIP7(master/slave mode) and
DIP5(repeater/feedback mode) are all invalid. At this mode, module works as a
Modbus slave, it can not transmit data actively. Master can be a PC connecting with a
wireless data module or other data terminal. Data terminal sends Modbus RTU
command and requests slave feedback collection condition or control slave’s ON-OFF
output. Slave’s ID can be 1 to 254.
Figure 4: collecting mode network schematic
4. Feedback/repeater mode
At feedback/repeater mode, receiver will retransmit the command it received and
make it reach longer distance. It functions as a repeater.
The transmitter will output related ON-OFF condition on its output COM after
receiving retransmitted command, meanwhile, the output indicator will be ON/OFF.
Its output condition will be the same with its input condition. If receiver didn’t receive
the command, it will not retransmit, feedback will fail. Master’s output condition will
be not the same with its input. This function can monitor receiver’s output results.
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