Test And Service Functions; Test Functions - Siemens SIMATIC S7-1500 System Manual

Test and service functions

14.1

Test functions

Introduction
You have the option of testing the operation of your user program on the CPU. You monitor
signal states and values of tags, and preassign values to tags so that you can simulate
specific situations for program execution.
Note
Using test functions
Using test functions affects the program execution time and thus the cycle and response
times of the controller to a slight extent (a few milliseconds).
Requirements
● There is an online connection to the relevant CPU.
● An executable user program is available in the CPU.
Test options
● Testing with program status
● Testing with breakpoints
● Testing with a watch table
● Testing with a force table
● Testing with a PLC tag table
● Testing with a data block editor
● Testing with the LED flash test
● Testing with a trace function
SIMATIC Drive Controller
System Manual, 11/2019, A5E46600094-AA
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