Diagnostics And Upkeep; Diagnostics Options - Siemens CM 1542-5 Operating Instructions Manual

Diagnostics and upkeep

5.1

Diagnostics options

Diagnostics options
You have the following diagnostics options available for the module:
● The LEDs of the module
Diagnostics using the LEDs is the first means of narrowing down errors/faults. To narrow
the error/fault down even further, evaluate the message on the display of the S7-1500
CPU. If errors/faults occur, you can also identify them using the Web server or by
evaluating the diagnostics buffer of the CPU. The diagnostics buffer of the CPU contains
plain language information about the error/fault that has occurred. The diagnostics buffer
is accessible via STEP 7, the display and the Web server.
For information on the LED displays, refer to the section LEDs (Page 19).
● 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.
CM 1542-5
Operating Instructions, 11/2018, C79000-G8976-C290-04
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