Rockwell Automation 1785-l11B, -L20B, -L30B, -L40B, -L40L, -L60B, -L60L, -L80B Enhanced PLC-5 Programmable Controllers Installation Instructions - Manual (Page 18)

Publication 1785-IN062A-EN-P - May 2005
18 Enhanced PLC-5 Programmable Controllers
Indicator Color Description Probable Cause Recommended Action
PROC Red
(steady)
Fault with memory
loss New controller
Processor has failed
internal diagnostics
Use programming software to
clear and initialize memory
Install battery (to preserve failure
diagnostics), then power down,
reseat controller and power up;
then reload your program. If you
are unable to reload your
program, replace the controller.
If you are able to reload your
program and fault persists,
contact Technical Support at
440.646.3223 to diagnose the
problem.
Off Processor is in
program load or test
mode or is not
receiving power Power supply or
connections Check power supply and
connections
FORCE Amber
(steady)
SFC and/or I/O forces
enabled Normal operation No action required
Amber
(blinking) SFC and/or I/O forces
present but not
enabled
Off SFC and/or I/O forces
not present
COMM Off No transmission on
channel 0 Normal operation if
channel is not being
used No action required
Green
(blinking) Transmission on
channel 0 Normal operation if
channel is being
used
BATT
PROC
FORCE
COMM