Detailed description
2.6 Interface structure
Basic logic functions: PLC Basic program powerline (P3 pl)
38 Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Signals PLC/NC
The group of signals from the PLC to NC includes:
• Signals for modifying the highspeed digital I/O signals of the NC
• Keyswitch and emergency stop signals
Signals NC/PLC
The group of signals from the NC to PLC includes:
• Actual values of the digital and analog I/O signals of the NC
• Ready and status signals of the NC
Also output in this group are the HMI handwheel selection signals and the channel status
signals.
The signals for handwheel selection are decoded by the basic program and entered in the
machine-/axisspecific interface.
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Figure 2-4 PLC/NC interface
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