ERROR 138: Checksum error

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Error handling ► ET/MT-3x6, ET/MT-2x8 series error messages ► Error Messages of Individual Drivers ► Siemens S7-MPI ► ERROR 138: Checksum error

 

The part supplementary data of the Check sum error message is like this:

 

-<BCC>-<direction>-<station>

 

The label's meaning is following:

ERROR 138: Checksum error

Label

Meaning

A

BCC error of the received error response telegram

B

BCC error of the received response telegram

 

 

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