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Alex Krashevsky

Cpm2a

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Hello, every body! I have Plc of Omron: cpm2a 30cdr with program of project. I can Upload program from Plc, but to chance logic, or clear program no passable .The Plc write me information about communications error: Clear UM-UM is protected. Which possible can clear program from Plc? With best regards Alex.

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Check DM 6602 for #0001; if it is true, then the program is write protected. Change the value of DM6602 to #0000. See table below:

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