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Chapter 9. Diagnostics
9.4.11
Program or Block Checksum Failure (Group 17)
The fault group Program or Block Checksum Failure occurs when the CPU detects error conditions in
program or blocks. It also occurs during RUN Mode background checking. In all cases, the Fault Extra
Data field of the Controller Fault Table record contains the name of the program or block in which
the error occurred.
Action: Non-configurable.
All Error Codes, Program or Block Checksum Failure
The CPU generates this error when a program or block is corrupted.
Correction
1) Clear CPU memory and retry the store.
2) Examine C application for errors.
3) Display the Controller Fault Table on the programmer. Contact Technical Support, giving them all
the information contained in the fault entry.
Fault Extra Data for Program or Block Checksum Failure
The name of the offending program block is contained in the first eight bytes of the Fault Extra Data
field.
GFK-2950C
February 2018
411
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