Hardware reference guide

CPU Modules
184
35013379 11/2011
LED Indicators and Descriptions
The following figure shows the LED indicators.
The following table provides a description of the LED indicators for the
140CPU53414A module.
LED Error Codes
The following table shows the run LED error codes for the 140CPU53414A.
LED Descriptions
LEDS Color Indication when On
Ready Green The CPU has passed power-up diagnostics.
Run Green The CPU has been started and is solving logic.
Bat Low Red The battery needs replacing or is not present.
Modbus Green Communications are active on Modbus port 1 or 2.
Modbus + Green Communications are active on the Modbus Plus port.
Error A Red Indicates communications error on the Modbus Plus port.
Mem Prt Amber Memory is write-protected (the memory protect switch is on).
LED Error Codes
Number of Blinks Code Error
Continuous 0000 requested kernel mode
2 80B ram error during sizing
80C run output active failed
82E MB command handler stack error