Z1: NC/PLC interface signals
19.1 Various interface signals and functions (A2)
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
1621
Signal state 0 or
edge change 1 → 0
The screen is not darkened.
Application
example(s)
Using this IS, the PLC can identify whether the screen was switched dark using the interface signal:
DB19, DBX0.1 (darken screen)
or using the machine data:
MD9006 $MM_DISPLAY_BLACK_TIME (screen blanking time)
.
Corresponding to ... MD9006 $MM_DISPLAY_BLACK_TIME (screen blanking time)
DB19
DBX20.3 Cancel alarm cleared
Edge evaluation: No Signal(s) updated: Cyclic
Signal state 1 or
edge change 0 → 1
Cancel alarm deleted active
Signal state 0 or
edge change 1 → 0
Cancel alarm deleted inactive
Note: The signal is not reset automatically, it must be set by the user via the PLC user program.
Application
example(s)
Applies only to HMI Advanced
DB19
DBX20.4 Recall alarm cleared
Edge evaluation: No Signal(s) updated: Cyclic
Signal state 1 or
edge change 0 → 1
Recall alarm deleted inactive
Signal state 0 or
edge change 1 → 0
Recall alarm deleted inactive
Note: The signal is not reset automatically, it must be set by the user via the PLC user program.
Application
example(s)
Applies only to HMI Advanced
DB19
DBX20.6 Simulation active
Edge evaluation: No Signal(s) updated: Cyclic
Signal state 1 or
edge change 0 → 1
On entry to simulation = 1
Signal state 0 or
edge change 1 → 0
On exit from simulation = 0
Application
example(s)
Can be evaluated by machine manufacturer in order to activate the test on NC start.
The following must be set in the drive machine data:
MD1012 $MD_FUNC_SWITCH, bit 2 = 0.
Status "Ext. pulse disable active, terminal 663 open" is then not transmitted to the NC.
Corresponding to ... MD1012 $MD_FUNC_SWITCH, bit 2
DB19
DBX20.1 Screen dark
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