Rockwell Automation 1785-L20C_L40C QUICK START CONTROLNET PLC-5 - Manual (Page 21)

Chapter
4
Publication 1785-10.7 – October 1997
Troubleshoot the Processor
System
If you want to read about: See page:
Using the general status indicators 4-1
Using the ControlNet status indicators 4-3
Monitoring the ControlNet configuration and status screens 4-6
The general status indicators inform you of the general operational
state of the processor.
Indicator Color Description Probable Cause Recommended Action
BATT Red Battery low Battery low Replace battery within 10 days
Off Battery is good Normal operation No action required
PROC Green
(steady) Processor is in run
mode and fully
operational Normal operation No action required
Green
(blinking) Processor memory is
being transferred to
EEPROM
Red
(blinking) Major fault Run-time error •
Check major fault bit in status file
(S:11) for error definition
•
Clear fault bit, correct problem,
and return to run mode
Alternating
Red and
Green Processor in
FLASH-memory
programming mode Normal operation if
processor’s FLASH
memory is being
reprogrammed No action required – allow flash
update to complete
Processor FLASH
memory checksum
error Contact your local A-B
representative for a field firmware
update
Red
(steady) Major fault
•
Processor
memory has
checksum error
•
Memory
module error
•
Internal diagnostics
have failed
•
Clear memory and
reload program
•
Check backplane switch settings
and/or insert correct memory
module
•
Power down, reseat processor
and power up; then, clear memory
and reload your program. Replace
EEPROM with new program;
then, if necessary, replace
the processor
Off Processor is in program
load or test mode or is
not receiving power Check power supply
and connections
BATT
PROC
FORCE
COMM
Using This Chapter
Using the General
Status Indicators