Siemens Simatic ET200pro Operating Instruction page 110

Test functions and troubleshooting
10.1 Test functions
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 additional information on the test functions in the STEP 7 online help.
Additional information about testing with trace functions is available in the Function Manual
Using the trace and logic analyzer function
(https://support.industry.siemens.com/cs/ww/en/view/64897128).
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CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
Operating Instructions, 09/2016, A5E35873416-AA