Allen-Bradley ControlNet PLC-5 User Manual

1785-UM022B-EN-P - February 2002
Monitoring and Troubleshooting Your ControlNet System 5-3
Using the ControlNet
Status Indicators
The ControlNet status indicators inform you of the operational state
of the ControlNet network.
Indicator Color Description Probable Cause Recommended Action
I/O Off ControlNet I/O not
present or not
operating
Normal operation if
Channel 2 not being used
No action required
Steady
Green
All nodes configured
in the ControlNet map
table present and
operating properly
Normal operation No action required
Flashing
Green/Off
At least one node
configured for the
ControlNet network
not present or not
operating properly
Cable(s) or connector(s)
broken or not connected
Repair or replace cable(s) or
connector(s), and reconnect
Destination module(s) bad
or missing
Repair or replace module(s)
Node(s) not on network Connect node to network
Flashing
Red/Off
All nodes configured
for ControlNet not
present or not
operating properly
Cable(s) or connector(s)
broken or not connected
Repair or replace cable(s) or
connector(s), and reconnect
Nodes not on network Connect nodes to network
I/O
AB
Indicator
Color
1
Probable Cause Recommended Action
Off Internal diagnostics failed 1. Turn power off, make sure ControlNet address
is not 00, reseat processor, then power up
2. Clear memory and reload your program
3. Replace EEPROM with new program
4. If still an error, replace the processor
No power Check power supply
Steady Red Faulted unit Cycle power or reset unit
If fault persists, contact your Rockwell Automation
representative or distributor
Flashing
Green
Normal operation if processor is in
FLASH memory program mode
No action required
Flashing
Red/Green
The processor’s ControlNet address
is above UMAX
Configure the ControlNet network so that UMAX is at
least as high as the processor’s ControlNet address.
Set the processor’s ControlNet address at or below
UMAX.
Alternating
Red/Green
Self-test No action required
Alternating
Red/Off
Incorrect node configuration Check network address and other ControlNet
configuration parameters
and
A
B
AB Drives

Allen-Bradley ControlNet PLC-5 Specifications

General

Brand	Allen-Bradley
Model	ControlNet PLC-5
Category	Controller
Language	English