Siemens S7-1200 PROFIBUS - Diagnostics and Upkeep; Overview of Diagnostics Options and Methods

SIMATIC CM 1242-5
Operating Instructions, 01/2023, C79000-G8976-C245-06
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Diagnostics and upkeep
5
5.1 Diagnostics
5.1.1 Diagnostics options
Diagnostics options
You have the following diagnostics options available for the module:
• The LEDs of the module
For information on the LED displays, refer to the section LEDs (Page 14).
• STEP 7: The "Diagnostics" tab in the Inspector window
Here, you can obtain the following information on the selected module:
– Entries in the diagnostics buffer of the CPU
– Information on the online status of the module
• STEP 7: Diagnostics functions in the "Online > Online and diagnostics" menu
Here, you can obtain static information on the selected module:
– General information on the module
– Diagnostics status
– Information on the PROFIBUS interface
You can obtain further information on the diagnostics functions of STEP 7 in the STEP 7
online help.
• DP diagnostics
The DP diagnostics of the CM is described below.
The evaluation of diagnostics data records requested by the DP master and the diagnostics
interrupts or diagnostics alarms of the DP slaves is handled in the user program of the DP
master station.