Rockwell Automation 1404-M4_M5_M6_M8 Powermonitor 3000 User Manual, Firmware rev. 3.0 or LATER - Manual (Page 71)

Publication 1404-UM001F-EN-P - November 2009 71
Communication Chapter 4
Optional DeviceNet Communication
Powermonitor 3000 units with a catalog number ending in -DNT are
equipped with an optional DeviceNet communication port in addition
to the native port. Both may operate at the same time. You must
configure the DeviceNet communication parameters before you
connect the power monitor to a DeviceNet network. The DeviceNet
configuration parameters include node address (or MAC ID), baud
rate, and bus-off interrupt response.
•
Node address: Range 0 … 64, default 63.
•
Communication Rate: Range 125, 250, or 500 Kbps fixed rate,
AutoBaud or Program Baud. Default 125 Kbps fixed rate
•
Bus-off Interrupt: Specifies the response to a CAN bus-off
interrupt.
Remotely settable node addressing (node address = 64) enables
RSNetworx for DeviceNet to configure the node address of the power
monitor. In addition, this allows client devices that support the
DeviceNet Offline Connection Set to identify nodes with duplicate
addresses and automatically reassign the addresses of the offending
nodes.
AutoBaud allows the power monitor to automatically adjust to the
prevailing baud rate of the DeviceNet network. Program Baud enables
remote baud rate selection. With this option selected, you may use
RSNetworx for DeviceNet to set the power monitor communication
rate. Any change in communication rate takes place after power is
cycled to the power monitor.
Bus-off Interrupt specifies the response of the power monitor to a
CAN bus-off interrupt. The two options are Hold In Reset, which stops
communication until power is cycled to the power monitor, and Reset
and Continue, which resets communication and attempts to
re-establish the communication link. Default is Hold in Reset.
You must configure each device on a DeviceNet network with a
unique node address. Addresses 0 and 64 have special significance: 0
is most often used as a scanner address and 64 enables remotely
settable node addressing as described above. You must also configure
each device with the correct baud rate for the network. The
DeviceNet network must be designed within its recognized design
limitations of baud rate, trunk-line length, drop-line budget, and
common-mode voltage drop for correct operation.