Allen-Bradley 1440-SDM02-01RA, User Manual, Page: 51 / 168

Rockwell Automation Publication 1440-UM001D-EN-P - September 2016 51
Install the XM-124 Standard Dynamic Measurement Module Chapter 1
DeviceNet Connection
The XM-124 module includes a DeviceNet connection that lets the modules
communicate with a programmable logic controller (PLC), distributed control
system (DCS), or another XM module.
The DeviceNet network is an open, global, industry-standard communication
network that is designed to provide an interface through one cable from a
programmable controller to a smart device such as the XM-124 module. As
multiple XM modules are interconnected, the DeviceNet network also serves
as the communication bus and protocol that efficiently transfers data between
the XM modules.
Connect the DeviceNet cable to the terminal base unit as shown.
IMPORTANT If 24V Common is not referenced to earth ground, we recommend that you
use an RS-232 isolator, such as Phoenix™ PSM-ME-RS232/RS232-P (catalog
number 1440-ISO-232-24), to help protect both the XM module and the
computer.
WARNING: The serial port is intended for temporary local programming
purposes only and not intended for permanent connection. If you connect
or disconnect the serial cable with power applied to this module or the
serial device on the other end of the cable, an electric arc can occur. This arc
could cause an explosion in hazardous location installations.
Be sure that power is removed or the area is nonhazardous before proceeding.
Connect To Terminal
Red Wire DNet V+ 26 (optional—see note)
White Wire CAN High 23
Bare Wire Shield (chassis) 10
Blue Wire CAN Low 24
Black Wire DNet V- 27
IMPORTANT The DeviceNet power circuit through the XM module interconnect, which is
rated at only 300 mA, is not intended or designed to power DeviceNet
loads. Doing so could damage the module or terminal base.
If the module is configured to operate in Normal mode (fully ODVA
compliant), DNet V+ must be connected.
See Connecting Power on page 30 .