In a redundant system (SPH300 or SPH2000 with StandardV3), when I change the program online (Load the changed program into PLC), is the changed program loaded into both the working and standby CPU?

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  • GLOBAL > PLC > SPH > Support tool (Standard) > In a redundant system (SPH300 or SPH2000 with StandardV3), when I change the program online (Load the changed program into PLC), is the changed pr...
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  • Displayed Date : 2023/04/25 19:00
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In a redundant system (SPH300 or SPH2000 with StandardV3), when I change the program online (Load the changed program into PLC), is the changed program loaded into both the working and standby CPU?

In a redundant system (SPH300 or SPH2000 with StandardV3), when I change the program online (Load the changed program into PLC), is the changed program loaded into both the working and standby CPU?
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Answer

When the working CPU is running (in a normal or a nonfatal fault condition) and the standby CPU is standing by, the changed program is loaded into both CPUs.
Note
If the standby CPU is disconnected and does not exist, the online program change function cannot be used.

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