ProSoft Technology PTQ-AFC User Manual
Page 203
PTQ-AFC ♦ Modicon Quantum Platform
Diagnostics and Troubleshooting
Liquid and Gas Flow Computer for Hydrocarbon Products
User Manual
ProSoft Technology, Inc.
Page 203 of 259
June 23, 2011
10.2 BBRAM
LEDs
The BBRAM (Battery Backed RAM) LEDs inform you about the condition of the
BBRAM hardware used for data storage. The following table lists the possible
situations that might occur during normal operation.
OK (Green)
ERR (Red) Description
ON
ON
The module is in a Cold Start condition that typically occurs when you
power up the module for the first time. After at least one meter is enabled
and the processor is in RUN mode the module starts operating.
ON
OFF Normal
Operation
Blinking
OFF
This condition is warning that a checksum flag was raised after a power
cycle. If this alarm issue occurs, refer to the AFC Manager (On-line
Monitor / Checksum Alarms) in order to determine the data section in
which the alarm issue has occurred. After verifying that the checksum
error has not affected the referred memory area you may clear the
checksum alarm using the same AFC Manager interface.
After the alarm is cleared the OK LED will be ON