Detailed Description
2.1 Various interface signals and functions (A2)
NC/PLC Interface Signals (Z1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
2-5
DB10
DBX108.7
NC Ready
Edge evaluation: no Signal(s) updated: cyclic
Signal state 1 or
edge change 0 → 1
The control system is ready.
This interface signal is an image of the relay contact "NC Ready".
This signal is set if:
• Relay contact "NC Ready" is closed
• All the voltages in the control have been established
• The control is in the cyclic mode
Signal state 0 or
edge change 1 → 0
The control is not ready. The relay contact "NC Ready" is open.
The following faults will cause NC Ready to be canceled:
• Undervoltage and overvoltage monitoring function has responded
• Individual components are not ready (NCK CPU Ready)
• NC CPU watchdog
If the signal "NC Ready" goes to 0 the following measures are introduced by the control if they are
still possible:
• The controller enable signals are withdrawn (this stops the drives)
• The following measures are introduced by the PLC basic program:
– Status signals from NCK to PLC (user interface) are deleted (cleared)
– Change signals for help functions are deleted
– Cyclic processing of the PLC to NCK user interface is terminated
For further information see References!
The control is not ready again until after POWER ON.
Corresponding to .... Relay contact "NC Ready"
References /DA/ Diagnostics Guide
/FB1/ Description of Functions Basic Machine; PLC Basic Program (P3)
DB10
DBX109.0
NCK alarm is active
Edge evaluation: no Signal(s) updated: cyclic
Signal state 1 or
edge change 0 → 1
At least one NCK alarm is present.
This is a group signal for the interface signals
DB21, ... DBX36.6 (channel-specific NCK alarm is active)
of all existing channels.
Signal state 0 or
edge change 1 → 0
No NCK alarm is active.
Corresponding to .... DB21, ... DBX36.6 (channel-specific NCK alarm present)
DB21, ... DBX36.6 (NCK alarm with processing stop present)
References /DA/ Diagnostics Guide
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