Rockwell Automation 1440-VST02-01RA XM-120 Eccentricity Module - Manual (Page 42)

Publication GMSI10-UM010C-EN-P - May 2010
34 Installing the XM-120 Eccentricity Module
DeviceNet Connection
The XM-120 includes a DeviceNet™ connection that allows the module to
communicate with a programmable controller, DCS, or another XM module.
DeviceNet is an open, global, industry-standard communications network
designed to provide an interface through a single cable from a programmable
controller to a smart device such as the XM-120. As multiple XM modules are
interconnected, DeviceNet 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.
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.
To preclude this possibility, even unintentionally, it is
recommended that DeviceNet V+ be left unconnected.
ATTENTION
You must ground the DeviceNet shield at only one
location. Connecting the DeviceNet shield to terminal 10
will ground the DeviceNet shield at the XM module. If you
intend to terminate the shield elsewhere, do not connect
the shield to terminal 10.
ATTENTION
The DeviceNet network must also be referenced to earth at
only one location. Connect DNet V- to earth or chassis at
one of the XM modules.