Using Initialized Data
Original instructions
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Loading at Cold-Start Time
The Quantum Hot Standby CPUs support initialized data.
Initialized data allows you to specify cold-start initial values using Control Expert for the data that are to be loaded at cold-start time. For more information refer to the EcoStruxure™ Control Expert, Program Languages and Structure, Reference Manual.
Updating Standby PLC
During normal Hot Standby operation, the initial values are updated on the standby PLC.
If the remote PLC is OFFLINE, these values are not transferred.
When a remote PLC changes from OFFLINE to RUN, it is recommended to perform an application transfer to restore the user application initial values to the standby PLC.