Siemens SINUMERIK Series Function Manual page 838

Z2: NC/PLC interface signals
18.1 Digital and analog NCK I/Os (A4)
DB10
DBB1, 123, 125, 127, Setting by PLC of the digital NCK inputs
129
Edge evaluation: No
Signal state 1 or The digital NCK input is set to a defined "1" state by the PLC. This means the signal state at the
edge change 0 → 1 hardware input and disabling of the input (IS "Disable the digital NCK inputs") have no effect.
Signal state 0 or The signal state at the NCK input is enabled for read access by the NC part program. However, the
edge change 1 → 0 state can be accessed only if the NCK input is not disabled by the PLC (IS "Disable digital NCK
inputs" = 0).
Corresponding DB10 DBB0 (Disable digital NCK inputs)
to ...
DB10 DBB60 (actual value for digital NCK inputs)
MD10350 $MN_FASTIO_DIG_NUM_INPUTS
DB10
DBB4, 130, 134, 138, Disable digital NCK outputs
142
Edge evaluation: No
Signal state 1 or The digital NCK output is disabled. "0V" is output in a defined way at the hardware output.
edge change 0 → 1
Signal state 0 or The digital output of the NCK is enabled. As a result, the value set by the NC part program or the
edge change 1 → 0 PLC is output at the hardware output.
Corresponding DB10 DBB5 (Overwrite screen form for digital NCK outputs)
to ...
DB10 DBB7 (Setting screen form for digital NCK outputs)
DB10 DBB6 (Setting by PLC of digital NCK outputs)
MD10360 $MN_FASTIO_DIG_NUM_OUTPUTS
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 "Set value
edge change 0 → 1 by PLC of the digital NCK outputs"). The previous NCK value, which, for example, was directly set
by the part 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 DBB7 (Setting screen form for digital NCK outputs)
DB10 DBB6 (Setting value by PLC of digital NCK outputs)
MD10360 $MN_FASTIO_DIG_NUM_OUTPUTS
838
Signal(s) updated: Cyclic
Signal(s) updated: Cyclic
Signal(s) updated: Cyclic
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
Extended Functions