170 Main Processor Indicators
Trident Planning and Installation Guide
MP Status Indicators
The MP status indicators identify the processing state for the MP Module.
A fault light indicates that the processor has an internal fault.
Normal States
Pass Fault Active Lock Description Action
Green
steady
No
light
Yellow
blinking
No
light
Module is operating normally.
Active indicator blinks once per
scan when executing an
application.
Normal status. No action is
required.
Green
steady
No
light
No
light
No
light
Module is operating normally.
Possible conditions include:
Application has not been loaded
into the MP.
Load application.
Application has been loaded into
the MP, but has not been started up.
Start application.
Module has just been installed and
is currently being educated by the
other MP Modules.
Wait for the module to be
educated.
Fault States
Pass Fault Active Lock Description Action
No
light
Red
steady
—
1
No
light
Possible conditions include:
Module may have failed.
See mode indicator status for
power-up states.
Module may be in the process of
power-up self-test.
If the Pass indicator does not
go on within five minutes,
replace the module.
Module has detected a fault. Module is operational, but
should be replaced.
No
light
Red
steady
—Red
steady
Module is unlocked from the
baseplate.
Lock module using a #2 flat-
blade screwdriver.
Green
steady
Red
steady
— — Indicators/signal circuitry on the
module are malfunctioning.
Replace the module.
1. This symbol ( — ) means the indicator is not important for this condition.
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