Siemens SINUMERIK 840D sl Function Manual page 879

DB10
DBB6, 132, 136, 140, Set value by PLC of the digital NCK outputs
144
Edge evaluation: No
Signal state 1 or edge The signal status for the digital hardware output can be changed by the PLC with the setting value.
change 0 → 1 There are two possibilities:
● With the "Overwrite screen form":
● With the 'setting screen form':
With "setting value" "1", signal level 1 is put out at the hardware output. With "0", the output level is
0. The associated voltage values can be found in:
References:
Device Manual, NCU 7x0.3 PN
Signal state 0 or edge As the interface signal is only evaluated by the NCK on signal transition 0 → 1 it must be reset to "0"
change 1 → 0 again by the PLC user program in the next PLC cycle.
Special cases, Note:
errors, .... The PLC interface for the setting value (DB10, DBB6) is used both by the overwrite screen form (for
signal transition 0 → 1) and the setting screen form (for signal state 1). Simultaneous activation of
the two screen forms via the PLC user program must be avoided.
Corresponding to .... DB10 DBB4 (Disable digital NCK outputs)
DB10 DBB5 (Overwrite screen form for digital NCK outputs)
DB10 DBB7 (Setting screen form for digital NCK outputs)
MD10360 $MN_FASTIO_DIG_NUM_OUTPUTS
DB10
DBB7, 133, 137, 141, Setting screen form for digital NCK outputs
145
Edge evaluation: No
Signal state 1 or edge Instead of the NCK value, the PLC value is output at the digital hardware output. The PLC value must
change 0 → 1 first be deposited in IS "Set value by PLC of the digital NCK outputs".
The current NCK value is not lost.
Signal state 0 or edge The NCK value is output at the digital hardware output.
change 1 → 0
Special cases, Note:
errors, .... The PLC interface for the setting value (DB10, DBB6) is used both by the overwrite screen form (for
signal transition 0 → 1) and the setting screen form (for signal state 1). Simultaneous activation of
the two screen forms via the PLC user program must be avoided.
Corresponding to .... DB10 DBB4 (Disable digital NCK outputs)
DB10 DBB5 (Overwrite screen form for digital NCK outputs)
DB10 DBB6 (Setting value by PLC of digital NCK outputs)
MD10360 $MN_FASTIO_DIG_NUM_OUTPUTS
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Signal(s) updated: Cyclic
With signal transition 0 → 1 in the 'overwrite screen form' the PLC overwrites the previous 'NCK
value' with the 'setting value'. This is the new 'NCK value'.
On signal state 1 in the "setting screen form", the "PLC value" is activated. The value used is the
'setting value'.
Signal(s) updated: Cyclic
Z2: NC/PLC interface signals
19.1 Digital and analog NCK I/Os (A4)
879