Quick Reference
Appendix E
E-28
If the PROC indicator
And the processor
You should
Green
is in the Run mode operating normally
•
program is executing
•
outputs are enabled.
is in MEM STORE mode and EEPROM memory module is
being programmed. The indicator will be ON for a few seconds
and then then turn OFF.
No action required
Blinking Green
has an I/O configuration error
•
there is an illegal backplane switch combination (i.e., switch
4 is ON, switch 5 is OFF)
•
the I/O is not in complementary fashion (32pt. I/O only).
Check the switch settings and
module placement.
Red
has a possible hardware failure
•
program is not executing
•
if switch 1 of the switch group assembly if OFF, outputs are
disabled
data lines on the I/O chassis could be shorted to ground
Cycle power.
If the problem still persists, call your
AB representative.
Off
is operating normally in Program or Remote Test mode
is operating in Run mode, it has a memory or program error
Change the processor to Program mode, correct
problem and cycle power.
If problem still persists, call your
AB representative.
PROC Indicator
