Test and service functions
13.2 Reading out/saving service data
Distributed I/O system
264 System Manual, 09/2019, A5E03576849-AJ
Simulation
With STEP 7 you can run and test the hardware and software of the project in a simulated
environment. Start the simulation using the menu command "Online" > "Simulation" > "Start".
Reference
You can find more information on test functions in the STEP 7 online help.
Further information about testing with trace and logic analyzer functions is available in the
Function Manual Using the trace and logic analyzer function
(http://support.automation.siemens.com/WW/view/en/64897128
).
13.2 Reading out/saving service data
Service data
In addition to the contents of the diagnostics buffer, the service data contains a wide range of
extra information about the internal status of the CPU. If a problem occurs with the CPU that
cannot be solved with other methods, send the service data to Service & Support. The
service data allows Service & Support to run fast analysis of the problems that have
occurred.
Note
You cannot simultaneously execute a download to the device while reading out the service
data of the CPU.
Methods of reading service data
You can read service data with:
● The Web server
● STEP 7
● the SIMATIC memory card
Procedure using the Web server
To read service data using the Web server, follow these steps:
1. Open a Web browser that is suitable for communication with the CPU.
2. Enter the following address in the address bar of the web browser:
https://<CPU IP address>/save_service_data, e.g. https://172.23.15.3/save_service_data
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