
ControlLogix ControlNet Bridge Module 21
Publication
1756-IN602A-EN-P - November 2005
Red BPIC
ERR
Hardware fault
within the module.
Replace the module.
CNIC
ERR
DUPL
NODE
The module’s network address is
the same as another module’s on
the link.
1. (Optional, see page 9.)
Turn off chassis power
supply.
2. Remove the module from
the chassis.
3. Set the network address
switches to a unique
address (01 to 99).
4. Install the module in the
chassis.
5. If off, turn chassis power
supply on.
RACK
ERR
Cannot read backplane EEPROM,
or rack/slot address incorrect
Replace the chassis.
Flashing
red
BOOT Module has invalid firmware. Update module firmware with
ControlFlash Update Utility.
ROM
UPDT
Flash update is in progress. None required.
SNGL
KPR!
Module detected that it has
been connected to a ControlNet
1.0 or 1.25 (single-keeper)
network.
Update the firmware of module at
node address 01 and reschedule
the network.
Diagnostics
LED Display
Cause Recommended Action
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