to this file: /RFM/xdm2510hc

XDM2510H
Product Overview
Based on DUST Networks’ SmartMesh IA-510(H)™ technology, RFM’s
XDM2510H module provides WirelessHART compatibility, excellent communications reliability and long battery life in a wide range of industrial automation applications. The XDM2510H employs dynamic network optimization
and intelligent routing to achieve carrier-class data reliability, low latency, and
deterministic power management. The XDM2510H is tailored for use in battery, energy savaging and loop powered devices for applications that demand
robust wireless network reliability. The multi-functional interfaces of the
XDM2510H gives it the flexibility to be used in a wide variety of industrial applications, from process control and data acquisition to energy management.
The XDM2510H requires no embedded programming, greatly reducing the
development time and cost of a wireless sensor network application. The
XDM2510H is certified for unlicensed operation in the USA, Canada and
Europe. The XDM2510H complies with Directive 2002/95/EC (RoHS). Pb
2.4 GHz
Ultra-low Power
WirelessHART
RF Transceiver
Module
Key Features
Ultra-low Power Consumption
Wireless HART Compliance
•
Interoperable with WirelessHART devices
•
Superior Reliability
•
•
•
•
Robust network reliability in even the most
challenging industrial environments
Frequency hopping provides interference rejection and minimizes multipath fading
Automatic self-organizing mesh networking
provides built-in network path redundancy
Every XDM2510H acts as both an endpoint
and a router, increasing network reliability
Easy Integration
•
•
•
•
XDM2510H provides all the module functionality
with no embedded programming or complex
configuration requirements
XDM2510H interfaces are well-designed and
multi-functional
Industrial temperature range -40 to +85 °C
XDM2510HP version for plug-in installation,
XDM2510HC version for solder reflow
www.RFM.com E-mail: [email protected]
©2010-2011 by RF Monolithics, Inc.
•
•
Industry leading 2.4 GHz radio technology is
optimized for battery, energy scavenging or
loop powered operation
Ultra-efficient power usage, enabled through
SmartMesh Intelligent Network management,
delivers over a decade of network operation on
two AA batteries
Automatic network-wide coordination for
efficient power usage
Pre-certified Module
•
•
IEEE 802.15.4 compliant module operates in
the 2.4 GHz global license-free band
XDM2510H is pre-certified for operation in the
USA, Canada and Europe
Applications
•
•
•
•
•
Industrial Automation
Process Control and Data Acquisition
Machine Health Monitoring
Structural Integrity Monitoring
Energy Management
Technical support +1.800.704.6079
E-mail: [email protected]
Page 1 of 16
XDM2510H - 03/17/11
Table of Contents
1.0 XDM2510H Introduction ......................................................................................................................... 3
2.0 Absolute Maximum Ratings.................................................................................................................... 5
3.0 Normal Operating Conditions ................................................................................................................. 5
3.1 Current Consumption........................................................................................................................ 5
4.0 Electrical Specifications.......................................................................................................................... 6
4.1 Digital I/O Load ................................................................................................................................. 6
4.2 Digital I/O Type 1 .............................................................................................................................. 6
4.3 Digital I/O Type 2 .............................................................................................................................. 6
4.4 Digital I/O Type 3 .............................................................................................................................. 7
5.0 RF Specifications ................................................................................................................................... 7
5.1 Radio Specifications ......................................................................................................................... 7
5.2 Antenna Specifications ..................................................................................................................... 8
6.0 Module Pinout ........................................................................................................................................ 9
7.0 Boot Sequence..................................................................................................................................... 10
8.0 Hardware Interfaces ............................................................................................................................. 10
8.1 /RESET IN ..................................................................................................................................... 10
8.2 /TIME ............................................................................................................................................. 10
8.3 /LED ............................................................................................................................................... 11
8.4 Settable I/O Modes ........................................................................................................................ 11
8.4.1 Mode1 - Three/Four/Five Signal Serial Interface (9600 b/s)................................................ 11
8.4.2 Mode 3 - Five Signal Serial Interface (9600 b/s).................................................................. 12
8.4.3 UART Timing Values............................................................................................................ 13
8.5 Serial API ........................................................................................................................................ 15
8.6 Temperature Sensor ....................................................................................................................... 15
9.0 XDM2510H Outline Drawings .............................................................................................................. 16
9.1 XDM2510HP Pinned Configuration ................................................................................................ 16
9.2 XDM2510HC Castellated Pad Configuration.................................................................................. 16
www.RFM.com E-mail: [email protected]
©2010-2011 by RF Monolithics, Inc.
Technical support +1.800.704.6079
E-mail: [email protected]
Page 2 of 16
XDM2510H - 03/17/11
1.0 XDM2510H Introduction
RFM’s XDM2510H is a 2.4 GHz IEEE 802.15.4 WirelessHART compliant radio module designed to provide excellent communications reliability and long battery life in a wide range of industrial automation applications. The
XDM2510H employs DUST Networks’ SmartMesh IA-510(H)™ technology which blends the reliability of selforganizing and self-healing mesh networking with synchronized power duty cycling to achieve very long battery
life operation. The XDM2510H is certified for unlicensed operation in the USA, Canada and Europe. An example
XDM2510H network is shown in Figure 1. The network consists of an XG2510HE or equivalent WirelessHART
gateway/network manager and XDM2510H-based sensor nodes. The XG2510HE provides both the XDM2510H
network management function and the gateway application interfaces. The XG2510HE includes an Ethernet port
that supports XML-based network commands, and two RS232 serial ports that support binary string network commands, diagnostics, etc.
X D M 2 5 1 0 H N e tw o rk
X D M 2 5 1 0 H
S e n s o r
N o d e 4
X D M 2 5 1 0 H
S e n s o r
N o d e 1
X G 2 5 1 0 H E
G a te w a y /
M a n a g e r
X D M 2 5 1 0 H
S e n s o r
N o d e 3
X D M 2 5 1 0 H
S e n s o r
N o d e 2
X D M 2 5 1 0 H
S e n s o r
N o d e 5
Figure 1
SmartMesh IA-510(H)™ traffic is organized in to TDMA frames consisting of 10 ms time slots. The XG2510HE
assigns time slots to each XDM2510H node in the network, and then maintains a precise report interval (frame-toframe period) to provide a highly synchronized network. Network operation also hops from channel to channel in a
pseudorandom pattern to mitigate the effects of multipath fading and narrowband interference. The XDM2510H
monitors performance on each channel and will temporarily discontinue the use of a channel that is showing poor
performance statistics.
Mesh networking allows traffic to be passed from XDM2510H node-to-node so that messages can be delivered to
and from nodes that can not communicate directly with the XG2510HE gateway/manager. At least two paths are
maintained by the network for communication between each node and the gateway/manager. As needed, new
paths will be automatically established to replace a failing paths to maintain network performance.
www.RFM.com E-mail: [email protected]
©2010-2011 by RF Monolithics, Inc.
Technical support +1.800.704.6079
E-mail: [email protected]
Page 3 of 16
XDM2510H - 03/17/11
As shown in Figure 2, each sensor node in the network consists of an XDM2510H radio module and a host microcontroller with sensor I/O electronics. The host microcontroller communicates with the XDM2510H radio module on a serial interface using binary command and response strings.
T y p ic a l X D M 2 5 1 0 H
A p p lic a tio n
+
/L E D
R X
T X
X D M 2 5 1 0 H
/M T _ R T S
/S P _ C T S
/M T _ C T S
H o s t
M ic r o c o n tr o lle r
a n d
S e n s o r
I/O
/T IM E
A n a lo g
a n d /o r
D ig ita l
In p u ts
A n a lo
a n d /o
D ig ita
O u tp u
r
g
l
ts
Figure 2
RFM’s XDM2510H delivers the WirelessHART compatibility, exceptional network reliability and ultra-low power
operation capabilities of SmartMesh IA-510(H)™ technology in a fully functional, pre-certified radio module that is
easily interfaced to a wide variety industrial automation applications.
www.RFM.com E-mail: [email protected]
©2010-2011 by RF Monolithics, Inc.
Technical support +1.800.704.6079
E-mail: [email protected]
Page 4 of 16
XDM2510H - 03/17/11
2.0 Absolute Maximum Ratings
The ratings below should not be exceeded under any circumstances. Damage can be caused by exceeding one or more of these parameters.
Parameter
Minimum
Typical
Maximum
Units
V
Comments
Supply Voltage
-0.3
5.5
Voltage on any Digital I/O Pin
-0.3
3.6
V
10
dBm
+85
°C
+245
°C
for 10 seconds
Input RF Level
Storage Temperature Range
-40
Solder Reflow Profile
VSWR of Antenna
input power at antenna connector
3:1
ESD Protection
Antenna Port
±250
V
HBM
All Other I/O
±2
kV
HBM
±200
V
CDM
* All voltages are referenced to module ground
Caution! This is an ESD sensitive device. Use proper ESD handling procedures when working with the device to prevent permanent damage.
Table 1
3.0 Normal Operating Conditions
Parameter
Operational Supply Voltage Range
(between VDD and VSS)
Minimum
Typical
Maximum
Units
2.85
3.60
5.50
V
100
mVp-p
+85
°C
8
°C/min
-40 °C to +85 °C
90
% RH
non-condensing
Voltage Supply Noise
Operating Temperature Range
-40
Maximum Allowed Ambient Temperature
Ramp During Operation
Operating Relative Humidity
10
Comments
including noise and load regulation
50 Hz to 2 MHz
Unless otherwise noted, VDD is 3.6 V and temperature is -40 °C to +85 °C.
Table 2
3.1 Current Consumption
Parameter
Transmit
Receive
Sleep
Minimum
Typical
Maximum
Units
18
mA
6
mA
8.5
µA
Comments
Table 3
www.RFM.com E-mail: [email protected]
©2010-2011 by RF Monolithics, Inc.
Technical support +1.800.704.6079
E-mail: [email protected]
Page 5 of 16
XDM2510H - 03/17/11
4.0 Electrical Specifications
4.1 Digital I/O Load
Maximum
Units
Total capacitance
Parameter
Minimum
Typical
0.5
µF
Total inductance
84
nH
Maximum
Units
Comments
Unless otherwise noted, VDD is 3.6 V and temperature is -40 °C to +85 °C.
Table 4
4.2 Digital I/O Type 1
Digital Signal
Minimum
Typical
VIL (low-level input voltage)
-0.3
0.6
V
VIH (high-level input voltage)
2.7
3.6
V
VOL (low-level output voltage)
VOH (high-level output voltage)
0.4
2.4
Comments
V
V
Digital current*
Output source (single pin)
3.7
mA
25 °C
Output sink (single pin)
2.0
mA
25 °C
50
nA
Input leakage current
*
This current level guarantees that the output voltage meets VOH and VOL specifications above.
Table 5
4.3 Digital I/O Type 2
Maximum
Units
VIL (low-level input voltage)
Digital Signal
Minimum
-0.3
Typical
0.6
V
VIH (high-level input voltage)
Comments
2.7
3.6
V
VOL (low-level output voltage, multi-function
I/O configured as output)
0
0.6
V
IOL < 0.6 mA, 85 °C
VOH high-level output voltage, multi-function
I/O configured as output)
2.7
3.3
V
IOH > -0.4 mA, 85 °C
Digital current*
Output source (single pin, multifunction I/O configured as output)
0.4
mA
25 °C
Output sink (single pin, multifunction I/O configured as output)
0.6
mA
25 °C
50
nA
25 °C
Input leakage current
*
This current level guarantees that the output voltage meets VOH and VOL specifications above.
Table 6
www.RFM.com E-mail: [email protected]
©2010-2011 by RF Monolithics, Inc.
Technical support +1.800.704.6079
E-mail: [email protected]
Page 6 of 16
XDM2510H - 03/17/11
4.4 Digital I/O Type 3
Digital Signal
Minimum
Typical
Maximum
Units
VIL (low-level input voltage)
-0.3
0.6
V
VIH (high-level input voltage)
2.0
3.6
V
0.4
V
VOL (low-level output voltage)
VOH (high-level output voltage)
3.1
Comments
V
Digital current*
Output source (single pin)
100
µA
Output sink (single pin)
1.6
mA
25 °C
50
nA
25 °C
Input leakage current
*
25 °C
This current level guarantees that the output voltage meets VOH and VOL specifications above.
Table 7
5.0 RF Specifications
5.1 Radio Specifications
Parameter
Operating frequency
Minimum
2.4000
Number of channels
Maximum
Units
2.4835
GHz
Occupied channel bandwidth
5
MHz
2.7
MHz
-40
+40
Receiver operating maximum
input level
Receiver sensitivity
Output power, conducted
at -20 dBc
ppm
Modulation
Raw data rate
Comments
15
Channel separation
Frequency accuracy
Typical
IEEE 802.15.4 DSSS
250
kbps
0
dBm
-92.5
dBm
At 50% PER, VDD = 3.6 V,
25 °C
-90.0
dBm
At 1% PER, VDD = 3.6 V,
25 °C
+8
dBm
VDD = 3.6 V, 25 °C
Table 8
www.RFM.com E-mail: [email protected]
©2010-2011 by RF Monolithics, Inc.
Technical support +1.800.704.6079
E-mail: [email protected]
Page 7 of 16
XDM2510H - 03/17/11
5.2 Antenna Specifications
The antenna must meet the specifications in Table 9 below. When the XDM2510H is placed inside an enclosure,
the antenna should be mounted such that the radiating portion of the antenna protrudes from the enclosure,
with the antenna connected to the module using a coaxial cable. For optimum performance, position the antenna
vertically when installed. The XDM2510H has been FCC certified as a module with both a dipole antenna and a
patch antenna. Any 2.4 GHz dipole antenna or 2.4 GHz patch antenna with a gain less than or equal to 12 dBi
may be used without the need for any FCC type acceptance testing. If a different antenna type or a higher gain
dipole or patch is to be used, please contact RFM Technical Support for more information.
Antenna Parameter
Value
Frequency range
2.4000 - 2.4835 GHz
Impedance
50 ohms
Maximum VSWR
3:1
Table 9
www.RFM.com E-mail: [email protected]
©2010-2011 by RF Monolithics, Inc.
Technical support +1.800.704.6079
E-mail: [email protected]
Page 8 of 16
XDM2510H - 03/17/11
6.0 Module Pinout
Pin
Name
I/O Type
1
GND
-
Connect to the host circuit board ground.
2
NC
-
Leave unconnected.
3
NC
-
Leave unconnected.
4
NC
-
5
UART_TX
Type 2 Output
6
UART_RX
Type 2 Input
7
/MT_RTS
Type 2 Output
8
MODE
Type 2 Input
Description
Leave unconnected.
Serial data output from the XDM2510H module UART.
Serial data input to the XDM2510H module UART.
Active low output to the host signaling the XDM2510H has a packet to deliver.
Mode B input, normally grounded.
9
NC
-
10
/SP_CTS
Type 2 Input
Active low input from the host signaling it is ready to receive a packet.
Leave unconnected.
11
/TIME
Type 2 Input
Active low input to trigger the XDM2510H to send a timestamp packet.
12
/MT_CTS
Type 1 Output
13
NC
-
14
VBAT
Power
15
GND
-
Active low clear to send output from XDM2510H to the host.
Leave unconnected.
Power supply input, +2.85 to +5.5 V
Connect to the host circuit board ground.
16
GND
-
17
/RESET IN
Type 1 Input
Active low XDM2510H reset input.
18
/LED
Type 1 Output
Active low status LED driver output.
19
NC
-
Leave unconnected.
20
NC
-
Leave unconnected.
21
NC
-
Leave unconnected.
22
NC
-
Leave unconnected.
23
NC
-
Leave unconnected.
24
NC
-
Leave unconnected.
25
NC
-
Leave unconnected.
26
NC
-
Leave unconnected.
27
NC
-
Leave unconnected.
28
GND
-
Connect to the host circuit board ground.
29
NC
-
Leave unconnected.
30
GND
-
-
Connector
RF
Connect to the host circuit board ground.
Connect to the host circuit board ground.
U.FL coaxial antenna connector.
Table 10
www.RFM.com E-mail: [email protected]
©2010-2011 by RF Monolithics, Inc.
Technical support +1.800.704.6079
E-mail: [email protected]
Page 9 of 16
XDM2510H - 03/17/11
7.0 Boot Sequence
Following the active low assertion of /RESET IN, the XDM2510H completes its boot-up process by loading and
decrypting the application image and loading the operating parameters. During the boot process, the modules
output signals are not actively driven and the input signals are ignored. The duration of the boot process is defined in Table 10.
Boot Parameter
Minimum
Typical
tboot_delay
Maximum
6
Units
s
Comments
The time between power up and
serial interface availability
Table 11
8.0 Hardware Interfaces
8.1 /RESET IN
When this signal is asserted low, the XDM2510H is hardware reset until the signal is de-asserted. Note that the
XDM2510H may also be reset using the reset serial command. If a system is designed to assert /RESET IN after
the XDM2510H has completed its boot process, it is recommended the module be placed into deep sleep prior to
assertion of the /RESET IN signal.
8.2 /TIME
The XDM2510H has the ability to deliver network-wide synchronized timestamps. The XDM2510H sends a time
packet through its serial interface when one of the following occurs:
• HDLC request for time is received.
•
Active-low /TIME signal is asserted.
Use of the /TIME input is optional but has the advantage of being more accurate. The value of the timestamp is
taken within approximately 1 ms of receiving a /TIME signal assertion. The XDM2510H will send the time packet
to the local host microcontroller within 100 ms of the strobe. If the HDLC request is used, due to packet processing the value of the timestamp may be captured several milliseconds after receipt of the packet. The real time delivered to the sensor processor is relative to the real-time clock on the Network Manager, which serves as the
Network Real Time Clock (NRTC).
/T IM E P in o r
H D L C C o m m a n d
R F
N e tw o rk
G a te w a y /
M a n a g e r
H o s t
M ic r o c o n tr o lle r
X D M 2 5 1 0 H
T im e
P a c k e t
Figure 3
tstrobe
TIME
tresponse
TX
Time Packet
Figure 4
www.RFM.com E-mail: [email protected]
©2010-2011 by RF Monolithics, Inc.
Technical support +1.800.704.6079
E-mail: [email protected]
Page 10 of 16
XDM2510H - 03/17/11
/TIME Parameters
Meaning
Minimum
tstrobe
TIME strobe pulse width
tresponse
TIME strobe active low assertion to start of time packet
Maximum
Units
100
ms
125
µs
Table 12
8.3 /LED
The XDM2510H provides an output to drive a status LED. This signal indicates network connectivity information,
which is useful during XDM2510H system installation. Alternatively, the XDM2510H status may be polled using
the serial Get Parameter request with the module state parameter.
/LED Signal Behavior
XDM2510H State
High
Off, or in sleep mode
Single blink (750 ms low, 3 s high)
On, and searching for potential network
Double blink (750 ms low, 750 ms high, 750 ms low, 3 s high)
On, and attempting to join the network
Triple blink (750 ms low, 750 ms high, 750 ms low, 750 ms high, 750 ms
low, 3 s high)
On, and attempting to establish redundant links
Low
On, fully configured into network with redundant parents
Table 13
8.4 Settable I/O Modes
The XDM2510H offers a choice of two I/O modes. The functionality of the interface will be determined by the setting MODE input.
MODE Pin Setting
Setting
Mode 1
Mode 3
Externally tied low
Externally tied high
Table 14
Both modes provide a means of transmitting and receiving serial data through the wireless network, and a command interface that provides synchronized time stamping, local configuration and diagnostics. Mode 1 implements an 8-bit, no parity, 9600 baud, three, four or five-signal serial interface with bidirectional packet-level flow
control operating at 9600 b/s. In certain designs, one or two of the serial handshake signals may be optional for
reduced pin count. Please refer to detailed descriptions of signals. Mode 3 implements an 8-bit, no parity, 9,600
baud, five-signal serial interface with bidirectional packet-level flow control and byte-level flow control in the
XDM2510H-to-microcontroller direction only.
8.4.1 Mode 1 - Three/Four/Five Signal Serial Interface (9600 b/s)
XDM2510H Mode 1 provides a three, four, or five-signal serial interface optimized for low-powered embedded
applications, and in certain designs may provide a lower pin count serial solution. The Mode 1 serial interface is
comprised of the data pins UART_TX and UART_RX, with handshake pins /MT_RTS, /MT_CTS, /SP_CTS used
for bidirectional flow control. The /MT_RTS signal is ideal for designs where the host microcontroller requires extra time to prepare to receive a packet. For example, when the host microcontroller sleeps periodically and requires a wake-up signal prior to receiving a packet. Refer to Table15 for information on each pin, including details
on which pins are optional.
www.RFM.com E-mail: [email protected]
©2010-2011 by RF Monolithics, Inc.
Technical support +1.800.704.6079
E-mail: [email protected]
Page 11 of 16
XDM2510H - 03/17/11
Mode 1 Pin Usage
Pin
I/O
Usage
UART_RX
Input
Serial data moving from the microcontroller to the XDM2510H.
UART_TX
Output
Serial data moving from the XDM2510H to the microcontroller.
/MT_RTS
Output
/MT_RTS provides a mechanism to wake the microcontroller in order to receive a packet. /MT_RTS is asserted
when the XDM2510H is ready to send a serial packet. The signal stays low until the /SP_CTS signal from the
microcontroller is detected low by the XDM2510H, indicating readiness to receive a packet, or the tMT_RTS to
SP_CTS timeout defined in Section 8.4.3 expires. If /MT_RTS times out, it will de-assert /MT_RTS, wait for tMT_RTS
retry and then re-assert /MT_RTS to attempt to send the packet again. /MT_RTS may be ignored by the microcontroller only if /SP_CTS always stays low.
/SP_CTS
Input
/SP_CTS provides packet level flow control for packets transferred from the XDM2510H to the microcontroller.
When the microcontroller is capable of receiving a packet it should assert the /SP_CTS signal. /SP_CTS may
be externally tied low (reducing pin count) only if the microcontroller is always ready to receive a serial packet.
Output
/MT_CTS provides packet level flow control for packets transferred from the microcontroller to the XDM2510H
that are destined for transfer over the network. Upon reset, following boot the XDM2510H will negate /MT_CTS
until the XDM2510H establishes a wireless network connection. During operation, the XDM2510H will negate
/MT_CTS if the XDM2510H does not have sufficient buffering to accept another packet. /MT_CST will also
remain high if the XDM2510H is not part of the network. The microcontroller must check that the /MT_CTS pin
is low before initiating each serial packet for wireless transmission. Note that the XDM2510H may receive
local serial packets at any time regardless of the /MT_CTS state.
Input
The /TIME pin can be used for triggering a timestamp packet. Its usage is optional.
/MT_CTS
/TIME
Table 15
8.4.2 Mode 3 - Five Signal Serial Interface (9600 b/s)
The XDM2510H Mode 3 provides a five-signal serial interface with byte-level flow control on transfers from the
XDM2510H to the microcontroller. The Mode 3 serial interface is consists of data pins UART_TX and UART_RX,
with handshake pins /MT_RTS, /MT_CTS and /SP_CTS used for bidirectional flow control. The /MT_RTS signal
is ideal for designs where the microcontroller requires extra time to prepare to receive a packet. For example, the
host microcontroller sleeps periodically and requires a wake-up signal prior to receiving a packet). Refer to Table
16 for information on each handshake pin, including details on which of those pins are optional.
Mode 3 Pin Usage
Pin
I/O
Usage
UART_RX
Input
Serial data moving from the microcontroller to the XDM2510H.
UART_TX
Output
Serial data moving from the XDM2510H to the microcontroller.
Output
/MT_RTS provides a mechanism to wake the microcontroller in order to receive a packet. /MT_RTS is asserted when the XDM2510H is ready to send a serial packet. The signal stays low until the /SP_CTS signal
from the microcontroller is detected low by the XDM2510H indicating readiness to receive a packet, or the
tMT_RTS to SP_CTS timeout defined in Section 8.4.3 expires. If /MT_RTS times out, it will de-assert /MT_RTS, wait
for tMT_RTS retry and then re-assert /MT_RTS to attempt to send the packet again.
Input
/SP_CTS provides both packet level and byte level flow control for packets transferred from the XDM2510H to
the microcontroller. When the microcontroller is capable of receiving a packet it should assert the /SP_CTS
signal. In Mode 3, byte-level flow control is achieved by having the microcontroller de-assert and then re-assert
the /SP_CTS signal following the receipt of each byte. The XDM2510H will begin transmission of the next byte
after detecting the re-assertion of /SP_CTS.
/MT_CTS
Output
/MT_CTS provides packet level flow control for packets transferred from the microcontroller to the XDM2510H
that are destined for transfer over the network. Upon reset, following boot the XDM2510H will negate
/MT_CTS until the XDM2510H establishes a wireless network connection. During operation, the XDM2510H
will negate /MT_CTS if the XDM2510H does not have sufficient buffering to accept another packet. /MT_CTS
will also remain high if the XDM2510H is not part of the network. The microcontroller must check that the
/MT_CTS pin is low before initiating each serial packet for wireless transmission. Note that the XDM2510H
may receive local serial packets at any time regardless of the /MT_CTS state.
/TIME
Input
The /TIME pin can be used for triggering a timestamp packet. Its usage is optional.
/MT_RTS
/SP_CTS
Table 16
www.RFM.com E-mail: [email protected]
©2010-2011 by RF Monolithics, Inc.
Technical support +1.800.704.6079
E-mail: [email protected]
Page 12 of 16
XDM2510H - 03/17/11
8.4.3 UART Timing Values
Variable
Meaning
Minimum
Maximum
+2
tRX_BAUD
Deviation from baud rate
-2
tRX_STOP
Number of stop bits, 9600 b/s
1
tRX_STOP
Number of stop bits, 115.2 kb/s
1.5
tTX_BAUD
Deviation from baud rate
-1
tTX_STOP
Number of stop bits
1
tSP_CTS to MT_RTS
Assertion of /SP_CTS to negation of /MT_RTS
0
tMT_RTS to SP_CTS
Assertion of /MT_RTS to assertion of /SP_CTS
Units
%
bit period
bit period
+1
%
bit period
10
ms
500
ms
500
ms
10
ms
tMT_RTS retry
Time from a /MT_RTS timeout to the retry
tSP_CTS to TX
Assertion of /SP_CTS to start of byte
tTX to SP_CTS
Start of byte to negation of /SP_CTS
tSP_CTS ack PW
Negation pulse width of /SP_CTS
tdiag_ack_timeout
The XDM2510H responds to all requests within this time.
125
ms
tinterbyte_timeout
Falling edge of TX to falling edge of /SP_CTS (Mode 3 only)
7.1
ms
tinterpacket_delay
The sender of an HDLC packet must wait at least this amount of time
before sending another packet
0
1
bit period
500
ns
20
ms
Table 17
Power-on Sequence
RST
tboot_delay
TX
HIGH-Z
MT_RTS
HIGH-Z
MT_CTS
HIGH-Z
Figure 5
www.RFM.com E-mail: [email protected]
©2010-2011 by RF Monolithics, Inc.
Technical support +1.800.704.6079
E-mail: [email protected]
Page 13 of 16
XDM2510H - 03/17/11
Byte-level Timing
tRX_BAUD
RX
LSB
tRX_STOP
MSB
tTX_BAUD
TX
LSB
STOP
tTX_STOP
MSB
STOP
Figure 6
Flow Control Timing
Figure 7
www.RFM.com E-mail: [email protected]
©2010-2011 by RF Monolithics, Inc.
Technical support +1.800.704.6079
E-mail: [email protected]
Page 14 of 16
XDM2510H - 03/17/11
Packet Timing
Figure 8
8.5 Serial API
The XDM2510H offers a comprehensive application programming interface (API) that provides full programmatic
access to control the mote, monitor its status (such as battery charge and network status), and provide access to
the wireless mesh network. Refer to the XDM2510H Module Serial API Guide for more information.
8.6 Temperature Sensor
The XDM2510H has an on-board temperature sensor. The temperature readings are available locally through the
mote serial API and through the network at the manager via the XML or serial API. For more information, refer to
the XDM2510H Module Serial API Guide, XG2510HE Gateway/Manager Serial API Guide, or XG2510HE Gateway/Manager XML API Guide.
Parameter
Temperature Sensor Input Range
Temperature Sensor Accuracy
Minimum
Typical
Maximum
Units
85
°C
-40
±7
Comments
°C
Table 18
www.RFM.com E-mail: [email protected]
©2010-2011 by RF Monolithics, Inc.
Technical support +1.800.704.6079
E-mail: [email protected]
Page 15 of 16
XDM2510H - 03/17/11
9.0 XDM2510H Outline Drawings
9.1 XDM2510HP Pinned Configuration (dimensions in inches)
Figure 9
9.2 XDM2510HC Castellated Pad Configuration (dimensions in inches)
Figure 10
WirelessHART is a registered trademark of the HART Communication Foundation
SmartMesh IA-510(H)™ is a trademarks of DUST Networks, Inc.
P/N M-2510-0000 Rev A
www.RFM.com E-mail: [email protected]
©2010-2011 by RF Monolithics, Inc.
Technical support +1.800.704.6079
E-mail: [email protected]
Page 16 of 16
XDM2510H - 03/17/11