P4: PLC for SINUMERIK 828D
14.4 Test and diagnostic functions
Basic Functions
1134 Function Manual, 09/2011, 6FC5397-0BP40-2BA0
14.4.2 Program status in the LAD program editor
14.4.2.1 Display program status
Procedure
To enable the program status, proceed in one of the following ways:
• Select the menu command "Test" > "Program status".
or
•To test, click in the function bar on the "Program status" button.
The program status is displayed in the program editor.
Boolean operations (contacts, coils) are displayed as colored blocks if the address value is 1 (the bit is
enabled).
The value of non-boolean addresses is displayed and updated as quickly as the communication permits it.
Note
If, in the STOP operating state, you have loaded a program into the target system, you must
switch the target system back into the RUN operating state before you can display
continuous updates of the program status!
Note
If you enable the program status, many other functions in the programming tool are
deactivated. For instance, you cannot change your program, unless you disable the program
status again. Other functions, e.g. switching the display from one program editor to another,
mean that the program status is automatically disabled. If you wish to display the status gain,
you must reselect the command "Program status".
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