Cannot change bool value online in step 7 Simatic manager siemens

sultanahmed

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Join Date
Jul 2013
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Hi ,

I am working on Siemens CPU 315-2DP(6es7315-2af03-0ab0) while working online i try to modify bool value memory address M33.3,M34.0 but it is showing "D0A1 function not permitted in current protection level". After some research i found that CPU switch key is on Run position then i change Run to Run-P. After so many try memory bool is not changing, i try different memory bit addresses still not changing,i try to change via VAT table problem is same.

I check in cross reference Memory bit addresses lie on single network, which is using in call FB Input.

What will be the problem??
 

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