Diagnostics
10.2 Diagnostic messages to the S7 controller
PN/M-Bus LINK
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Operating Instructions, 03/2018, A5E44260928-AA
10.2.2
Status byte in cyclic IO image
The cyclic IO image contains a status byte that informs when an error has occurred when
reading from an M-Bus device.
The status byte only contains the information that an error has occurred. Detailed information
about the error that has occurred is contained in the corresponding data record. See section