Rockwell Automation Allen-Bradley ControlNet 1734-ACNR User Manual page 123

If the OK With This
Indicator Is Module Status
Display
Red
Msg scrolls
BPA# ERR
BPRX ERR
BPIC
ERR
CNIC
ERR
DUPL NODE
RACK ERR
Flashing Red BOOT
ROM
UPDT
SNGL KPR!
Green OK
INIT
BW >MAX
It Means
(1) Module's network address is set to 00, an
invalid ControlNet address. See footnote at end
of table.
Module detected a different slot address from
that latched when you cycled power. Excessive
noise on the backplane causes this error.
Too many CRC errors being generated by the
multicast backplane receiver, so the backplane
multicast receivers have been shut off.
Hardware fault within the module.
The module's network address is the same as
another module's on the link.
Cannot read backplane EEPROM, or rack/slot
address incorrect
Module has invalid firmware.
Flash update is in progress.
Module detected that it has been connected to
a Cnet 1.0 or 1.25 (single-keeper) network.
Normal operation
Module is initializing.
Module is receiving too much network traffic
and connections are timing out. The network
bandwidth has been exceeded.
Troubleshoot Your ControlNet Communication Modules
Take This Action
1. Optional – Turn chassis power supply
off.
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.
Replace the chassis or module.
Replace the module.
Replace the module.
1. Turn chassis power supply off.
(Optional)
2. Remove the module from the chassis.
3. Set the network address switches to a
unique address (01-99).
4. Install the module in the chassis.
5. If off, turn chassis power supply on.
Replace the chassis.
Update module firmware with ControlFlash
Update Utility.
None required.
Update the firmware of module at node address
01 and reschedule the network.
There is at least one connection to or through
the module. No action required.
No action required.
None required (temporary condition).
If this happens frequently, add another bridge
module and split the traffic between them.
Publication CNET-UM001C-EN-P - November 2005
8-3