Rockwell Automation 1756-CNB ControlLogix ControlNet Bridge Module Installation Instructions - Manual (Page 23)

23
Publication 1756-IN571B-EN-P - April 2001
Module Status Indicator and Display
The Module Status Indicator LED and Module Status Display provide
diagnostic information as summarized in the following table.
Diagnostics
LED Display
Cause Action
Off None Module not communicating due
to a power supply fault or
internal fault. 1. Check the power supply.
2. Check the cable connectors.
3. Make sure the module is firmly
seated in the chassis.
4. If the indicator remains off,
replace the module.
Red Msg
scrolls
(1)
Module’s network address is set
to 00, an invalid ControlNet
address, or 99, an invalid
ControlNet address if you are
using redundant control. See
footnote at end of table. 1. (Optional, see page 11.)
Turn chassis power supply off.
2. Remove the module from the
chassis.
3. Set the network address
switches to a unique address
(01-99, or 01-98 if redundant
control)
4. Install the module in the
chassis.
5. If off, turn chassis power
supply on.
BPA#
ERR Module detected a different slot
address from that latched in at
power-up. Excessive noise on
the backplane causes this error. Replace the chassis or module.
BPRX
ERR Too many CRC errors being
generated by the multicast
backplane receiver, so the
backplane multicast receivers
have been shut off. Replace the module.
BPIC
ERR
Hardware fault
within the module. Replace the module.
CNIC
ERR
OK