System diagnostics by means of the user program
5.2 System diagnostics using process image inputs
Diagnostics
Function Manual, 09/2016, A5E03735838-AD
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Additional information
Online help
In the online help for STEP 7, you can find:
● Additional information on instructions for system diagnostics
● Information about further options for evaluating diagnostic information in the user program
(e.g. with the "RDREC", "RALRM", "GET_DIAG" instructions)
● Information on SIMATIC ProDiag. This functionality enables targeted and fast machine
and plant diagnostics for SIMATIC S7-1500 and SIMATIC HMI:
– Standardized diagnostics concept for different SIMATIC components
– No additional configuration work for diagnostics functionality
– Reduces the load on PLC memory and program run time
You can find details in the online help under "Supervising machinery and plants with
ProDiag".
You can find additional information about evaluating diagnostic information in the user
program in the following manuals:
● PROFINET with STEP 7 V14
(http://support.automation.siemens.com/WW/view/en/49948856
) function manual
● From PROFIBUS DP to PROFINET IO
(https://support.industry.siemens.com/cs/ww/en/view/19289930
) programming manual
● Manual for the respective module
You can find detailed application examples with further documentation and example projects
on the Service&Support Website:
● Diagnostics in the user program with S7-1500
(https://support.industry.siemens.com/cs/ww/en/view/98210758
)
● System diagnostics with S7-1500 and TIA Portal
(https://support.industry.siemens.com/cs/ww/en/view/68011497
)
For more information about how to realize channel diagnostics in the user program of the
SIMATIC S7-1500, refer to the FAQ with entry ID 109480387 on the Service&Support
Website (https://support.industry.siemens.com/cs/ww/en/view/109480387
).