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CPU being stored to in Stop mode and store a complete program from the programmer to the PLC. This cleans up any fragmentation that exists and enables future online changes.

HIf an online program change is made to a single PLC and subsequently deleted before the same change is made to the other PLCs in the system, it is possible that the program checksum will not match, even though the programs in the CPUs appear to be the same. Logicmaster 90-70 may also indicate ªLogic Not Equalº when connected to a PLC in which the change/deletion was not made. To recover from this condition, a ªrun mode storeº may be required at the PLCs in which the deletion was not made.

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GeniustModular Redundancy Flexible Triple Modular Redundant (TMR) System

GFK-0787B

 

User's Manual ± March 1995

 

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Image 181
GE GFK-0787B user manual