Siemens SINUMERIK 840D sl Function Manual

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Z2: NC/PLC interface signals19.1 Digital and analog NCK I/OsExtended Functions1016 Function Manual, 09/2009, 6FC5397-1BP20-0BA0Description of signals from PLC to NCDB10DBB0, 122, 124, 126,128Disable digital NCK inputsEdge evaluation: No Signal(s) updated: CyclicSignal state 1 oredge change 0 → 1The digital input of the NCK is disabled by the PLC. It is thus set to "0" in a defined way in thecontrol.Signal state 0 oredge change 1 → 0The digital input of the NCK is enabled. The signal state applied at the input can now be readdirectly in the NC parts program.Corresponding to .... DB10 DBB1 (Setting by PLC of digital NCK inputs)DB10 DBB60 (actual value for digital NCK inputs)MD10350 $MN_FASTIO_DIG_NUM_INPUTSDB10DBB1, 123, 125, 127,129Setting by PLC of digital NCK inputsEdge evaluation: No Signal(s) updated: CyclicSignal state 1 oredge change 0 → 1The digital NCK input is set to a defined "1" state by the PLC. This means the signal state at thehardware input and disabling of the input (IS "Disable the digital NCK inputs") have no effect.Signal state 0 oredge change 1 → 0The signal state at the NCK input is enabled for read access by the NC parts program. However,the state can be accessed only if the NCK input is not disabled by the PLC (IS "Disable digital NCKinputs" = 0).Correspondingto ...DB10 DBB0 (Disable digital NCK inputs)DB10 DBB60 (actual value for digital NCK inputs)MD10350 $MN_FASTIO_DIG_NUM_INPUTSDB10DBB4, 130, 134, 138,142Disable digital NCK outputsEdge evaluation: No Signal(s) updated: CyclicSignal state 1 oredge change 0 → 1The digital NCK output is disabled. "0V" is output in a defined way at the hardware output.Signal state 0 oredge change 1 → 0The digital output of the NCK is enabled. As a result, the value set by the NC parts program or thePLC is output at the hardware output.Correspondingto ...DB10 DBB5 (Overwrite screen form for digital NCK outputs)DB10 DBB5 (Setting mask for digital NCK outputs)DB10 DBB6 (Setting by PLC of digital NCK outputs)MD10360 $MN_FASTIO_DIG_NUM_OUTPUTS