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maersk
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Joined: 17 Aug 2014
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 Posted: 15/12/2015 20:06 Post subject: How do you implement channel diagnosticsSIMATIC S7-1200/1500 |
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How do you implement channel diagnostics in the user program of the SIMATIC S7-1200/1500?
https://support.industry.siemens.com/cs/document/109480387/how-do-you-implement-channel-diagnostics-in-the-user-program-of-the-simatic-s7-1200-1500?dti=0&pnid=13613&lc=en-US
This entry provides a function block for diagnosing channel errors in the central configuration or in an IO module connected via PROFINET IO. This block uses the "RALRM" instruction.
You implement channel diagnostics of IO modules that support diagnostics by calling the "RALRM" instruction in the diagnostic interrupt OB 82.
Channel diagnostics with the SIMATIC S7-1200/S7-1500 is illustrated taking the example of the central IO and via PROFINET IO:
Fig. 01
Using the FB "1x00Diag82" and depending on the controller family used (S7-1200 or S7-1500) you can decode and process per channel the diagnostics data of the "RALRM" instruction for the central or distributed configuration via PN IO.
https://support.industry.siemens.com/cs/attachments/109480387/109480387_Diag82_en.pdf
https://support.industry.siemens.com/cs/attachments/109480387/109480387_Diag82.zip |
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