Cold Start: Cold start refers to starting the CPU from power off, Current configuration is discarded and program processing begins again with the initial values.
Warm Start: Warm start refers to restarting the CPU without turning the power off, Program processing starts once again where Retentive data is retained.
Giving power cycle to CPU is not a cold start , however it will be counted as a warm start.
To enable cold start during power cycle, you need to select the cold start only check box in CPU configuration using unity pro software.
Cold Start Only:
If checked, this option forces the cold start of the application, instead of the normal warm start upon power cycle of the PLC.
By default, the Cold Start Only option is unchecked.
The Cold Start Only option is only supported since PLC V2.7
Warm Start: Warm start refers to restarting the CPU without turning the power off, Program processing starts once again where Retentive data is retained.
Giving power cycle to CPU is not a cold start , however it will be counted as a warm start.
To enable cold start during power cycle, you need to select the cold start only check box in CPU configuration using unity pro software.
Cold Start Only:
If checked, this option forces the cold start of the application, instead of the normal warm start upon power cycle of the PLC.
By default, the Cold Start Only option is unchecked.
The Cold Start Only option is only supported since PLC V2.7
Released for: Schneider Electric India
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