Siemens SINUMERIK 840D sl Operating Manual page 326

Ladder Viewer and Ladder add-on (828D only)
16.7 Displaying information on the program blocks
Access protection
Displaying the program status
Display progress status
If your PLC has the function "Progress status" available, the status values are displayed at
the time of execution of the operations. The status of the local data memory and the
accumulators is also displayed.
Change colors for displaying of progress or program status
In progress status, different colors are used to display information.
Display
Signal flow of power rail, when status active
Signal flow in the networks
All operations that are active and that are executed without
error (corresponds to signal flow)
Status of the Boolean operations (corresponds to signal
flow)
Times and counters active
Error during execution
No signal flow
No network executed
STOP mode
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If a program block is password-protected. The ladder diagram display
can be enabled using the "Protection" softkey.
1. Press the "Program stat. OFF" softkey to hide the program status in the
status display.
2. Press the "Program stat. ON" softkey to unhide the program status in
the status display.
1. Press the "Program stat. OFF" softkey to hide the program status in the
status display.
2. Press the "Program stat. ON" softkey to unhide the program status in
the status display.
Color
Blue
Blue
Blue
Blue
Green
Red
Gray
Gray
Gray
Operating Manual, 03/2013, 6FC5398-6AP40-3BA1
Universal