Signals From The Nc To The Plc (Db10) - Siemens SINUMERIK 840D sl Function Manual

2.1.3

Signals from the NC to the PLC (DB10)

DB10
DBX104.7 NCK-CPU-Ready
Edge evaluation: no
Signal state 1 or The NCK CPU is ready and registers itself cyclically with the PLC.
edge change 0 → 1
After a correct initial start and the first complete OB1 cycle (initial setting cycle) the PLC and NCK
continuously exchange sign of life signals.
The PLC basic program sets the interface signal "NCK CPU Ready" to 1.
Signal state 0 or The NCK CPU is not ready.
edge change 1 → 0
If a sign of life is not received from the NCK, the PLC/NCK interface is neutralized by the PLC basic
program and the interface signal "NCK CPU Ready" is set to 0.
The following measures are initiated by the PLC basic program:
•
•
•
Application Individual PLC outputs can, for example, be set to a defined state from the PLC user program.
example(s)
References /DA/ Diagnostic Guide
/FB1/ Functions Manual Basic Functions; PLC Basic Program (P3)
DB10
DBX108.1 HMI-CPU2-Ready (to BTSS or to MPI)
Edge evaluation: no
Signal status 1 or The CPU is ready and registers itself cyclically with the NCK.
edge change 0 → 1
Signal status 0 or The CPU is not ready.
edge change 1 → 0
DB10 HMI-CPU1-Ready (HMI to MPI) /
DBX108.2 - HMI-CPU1-Ready (HMI to BTSS, Standard Connection)
DBX108.3
Edge evaluation: no
Signal status 1 or The CPU is ready and registers itself cyclically with the NCK.
edge change 0 → 1
Signal status 0 or The CPU is not ready.
edge change 1 → 0
Application Appropriate measures can be introduced by the PLC user program, if "HMI-CPU1-Ready" = 0.
example(s)
References /DA/ Diagnostics Guide
Basic logic functions: NC/PLC interface signals (Z1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Signal(s) updated: cyclic
Status signals from the NCK to the PLC (user interface) are deleted (cleared)
Change signals for the help functions are deleted
Cyclic processing of the user interface PLC to NCK is terminated.
Signal(s) updated: cyclic
Signal(s) updated: cyclic
2.1 Various interface signals and functions (A2)
Detailed Description
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