SiemensSM 374
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How do I recognize a DP master error when working in Slave mode?
How do I recognize a DP master error when working in Slave mode?
SiemensSM 374
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There is a possibility of recognizing the failure of the DP master. It is necessary to diagnostic whether there was a complete failure or just changed the status from RUN to STOP.
- Total interruption: OB122 should be called, if the following parameters are displayed then you are in total interrupt mode: RET_VAL 80A0 or 80A1.
- Changing the operating mode: In case of changing the mode, OB82 is called, with this function the operational status of the DP master can be evaluated.
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