Siemens SINUMERIK 840D sl Function Manual page 1003

DB10
DBB5, 131, 135, 139, Overwrite screen form for digital NCK outputs
143
Edge evaluation: No
Signal state 1 or On signal transition 0 → 1 the previous NCK value is overwritten by the setting value (IS "Setting
edge change 0 → 1 value from PLC for digital NCK outputs"). The previous NCK value, which, for example, was
directly set by the parts program, is lost.
The signal status defined by the setting value forms the new NCK value.
Signal state 0 or As the interface signal is only evaluated by the NCK on signal transition 0 →1 it must be reset to "0"
edge 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 (Setting mask for digital NCK outputs)
DB10 DBB6 (Setting value by PLC of digital NCK outputs)
MD10360 $MN_FASTIO_DIG_NUM_OUTPUTS
DB10
DBB6, 132, 136, 140, Setting by PLC of digital NCK outputs
144
Edge evaluation: No
Signal state 1 or The signal status for the digital hardware output can be changed by the PLC with the setting value.
edge change 0 → 1 There are two possibilities:
•
•
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:
/PHD/SINUMERIK 840D Configuration Manual (HW)
Signal state 0 or As the interface signal is only evaluated by the NCK on signal transition 0 →1 it must be reset to "0"
edge 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 DBB5 (Setting mask for digital NCK outputs)
MD10360 $MN_FASTIO_DIG_NUM_OUTPUTS
Extended Functions
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Signal(s) updated: Cyclic
Signal(s) updated: Cyclic
With the "Overwrite screen form":
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'.
With the 'setting screen form':
On signal state 1 in the "setting screen form", the "PLC value" is activated. The value used is
the "setting value".
NC/PLC interface signals (Z2)
19.1 Digital and analog NCK I/Os
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