Series 6 CPU Error Flags

[PNP01 0]

Does anyone have information on the 24 cpu error flags displayed on the scratch pad for a Series 6+. I can't find it in any of the manuals.

[Steve Bailey 118]

All I could find was this from the Logicmaster Six manual: CPU error flags are stored in Scratch Pad memory. The CPU uses these flags to record faults encountered during normal operation, or during self-checks. This display is always controlled by the CPU. If any of the error flags is set, a message appears on the line below the error flags line.

[PNP01 0]

Thanks Steve, I'm having an intermittent 'Input Parity' fault that shuts my CPU down. I've isolated to a single I/O chain with 3-racks that have 8 to 10 cards per rack. Trying to isolate to a input address and was hoping the scratch pad would point me in the right direction.

[Steve Bailey 118]

Intermittent I/O parity errors like that can sometimes be caused by a bad backplane connection. Try removing and reseating the modules. Be sure to use the tool so as to get the maximum seating force.