Function
In the PLC user memory of the PLC CPU, the PLC user program and the user data are stored together with the PLC basic program. The memory of the PLC CPU is segmented according to load memory, work memory and system memory.
Load memory is retentive, and takes the form of either integrated RAM or a RAM module (plug-in memory card). It contains data, program and decompiling information. The load memory and the high-speed work memory for execution-relevant program tests provide sufficient space for user programs.
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