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Browse Questions » SIMATIC S7-400 / S7-400H / S7-400F /FH: Central processing unit 414-2DP External Issue (ID From Central processing unit doesnot match its Id)

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SIMATIC S7-400 / S7-400H / S7-400F /FH: Central processing unit 414-2DP External Issue (ID From Central processing unit doesnot match its Id)

Dear Sir/Madam,
I am trying to replace faulty CPU414-2DP with a new one. When i am inserting new CPU, its showing External Fault, which is as follows,
"Parameter Assignment: ID of central Unit Does not match that ID".
The order #of new CPU issame as the Old one.
Now what is the meaning of above fault. From where i have to change its ID.
Looking forward for your reply.
Regards,
Tariq

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