Test functions and troubleshooting
10.1 Test functions
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
106 Operating Instructions, 09/2016, A5E35873416-AA
Testing with program status
The program status allows you to monitor the execution of the program. You can display the
values of operands and the results of logic operations (RLO) allowing you to recognize and
fix logical errors in your program.
Note
Restrictions with the "Program status" function
The moni
toring of loops can increase the cycle time significantly, depending in each case on
the number of tags to be monitored and on the actual number of loops processed.
Testing with program status
A test with the "Program status" function can cause serious damage to property or injury to
persons if there are functional disturbances or program errors.
Make sure that no dangerous situations can arise before you conduct a test with the
"Program status" function.
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