Installation manual

Publication 1747-RM001G-EN-P - November 2008
B-8 SLC Status File
S:1/10 Static Config
(See table on
page B-60 for all
setting
combinations.)
Load Memory Module on Memory Error Bit
You can use this bit to transfer a memory module program to
the processor in the event that a processor memory error is
detected at power-up. A memory error means the processor
cannot run the program in the RAM because the program has
been corrupted, as detected by a parity or checksum error. This
type of error is caused by battery or capacitor drain, noise, or a
power problem.
You must set S:1/10 in the status file of the program in the
memory module. When a memory module is installed that has
bit S:1/10 set, a processor memory error detected at power-up
causes the memory module program to be transferred to the
processor, and the REM Run mode to be entered.
When S:1/10 is cleared in the memory module, the processor
remains in a major fault condition if a memory error is detected
on power-up, regardless if a memory module exists.
When S:1/10 is set in the status file of the user program in
RAM memory, the memory module must be installed at all
times to enter the REM Run or REM Test modes.
To program this feature, set this bit using the Data Monitor
function. Then store the program in the memory module.
•••••
Table B.2 Status File Functions (Continued)
Address Classification Description Fixed
5/01
5/02 5/03 5/04 5/05