Siemens SINUMERIK 840D sl Function Manual page 1019

DB10
DBB148 - 163 Setting value from PLC for analog NCK inputs
Edge evaluation: No
Signal state 1 or With this setting value a defined analog value can be set by the PLC. With IS "Setting screen form
edge change 0 → 1 of analog NCK inputs", the PLC selects whether the analog value at the hardware input or the
setting value from the PLC is to be used as the enabled analog value.
The setting value from the PLC becomes active as soon as IS "Setting screen form" is set to "1".
The setting value from the PLC is specified as a fixed point number (16 bit value including sign) in
2's complement.
Corresponding to .... DB10 DBB146 (Disable analog NCK inputs)
DB10 DBB147 (Setting screen form of analog NCK inputs)
DB10 DBB199-209 (Actual value of analog NCK inputs)
MD10300 $MN_FASTIO_ANA_NUM_INPUTS
DB10
DBB166 Overwrite screen form of analog NCK outputs
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 analog NCK outputs"). The previous NCK value which, for example, was
directly set by the part program, is lost.
The analog value specified by the PLC 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 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 must be avoided via the PLC user program.
Corresponding to .... DB10 DBB168 (Disable analog NCK outputs)
DB10 DBB167 (Setting screen form of analog NCK outputs)
DB10 DBB170-185 (Setting by PLC of analog NCK outputs)
MD10310 $MN_FASTIO_ANA_NUM_OUTPUTS
DB10
DBB167 Setting screen form of analog NCK outputs
Edge evaluation: No
Signal state 1 or Instead of the NCK value, the PLC value is output at the analog hardware output. The PLC value
edge change 0 → 1 must first be stored in IS "Setting value from PLC for the analog NCK outputs".
The current NCK value is not lost.
Signal state 0 or The NCK value is output at the analog hardware output.
edge change 1 → 0
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
Signal(s) updated: Cyclic
Signal(s) updated: Cyclic
Signal(s) updated: Cyclic
Z2: NC/PLC interface signals
19.1 Digital and analog NCK I/Os
1019