Detailed Description
2.1 Various interface signals and functions (A2)
Basic logic functions: NC/PLC interface signals (Z1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
9
2.1.3 Signals from the NC to the PLC (DB10)
DB10
DBX104.7
NCK-CPU-Ready
Edge evaluation: no Signal(s) updated: cyclic
Signal state 1 or
edge change 0 → 1
The NCK CPU is ready and registers itself cyclically with the PLC.
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
edge change 1 → 0
The NCK CPU is not ready.
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:
• 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.
Application
example(s)
Individual PLC outputs can, for example, be set to a defined state from the PLC user program.
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(s) updated: cyclic
Signal status 1 or
edge change 0 → 1
The CPU is ready and registers itself cyclically with the NCK.
Signal status 0 or
edge change 1 → 0
The CPU is not ready.
DB10
DBX108.2 -
DBX108.3
HMI-CPU1-Ready (HMI to MPI) /
HMI-CPU1-Ready (HMI to BTSS, Standard Connection)
Edge evaluation: no Signal(s) updated: cyclic
Signal status 1 or
edge change 0 → 1
The CPU is ready and registers itself cyclically with the NCK.
Signal status 0 or
edge change 1 → 0
The CPU is not ready.
Application
example(s)
Appropriate measures can be introduced by the PLC user program, if "HMI-CPU1-Ready" = 0.
References /DA/ Diagnostics Guide
To Next Page
Loading...
Need help?
General
