Z1: NC/PLC interface signals
19.1 Various interface signals and functions (A2)
Basic Functions
1622 Function Manual, 09/2011, 6FC5397-0BP40-2BA0
DB19
DBX20.7 Switch over MCS/WCS
Edge evaluation: No Signal(s) updated: Cyclic
Signal state 1 or
edge change 0 → 1
The coordinate system is switched over from workpiece coordinate system (WCS) to machine
coordinate system (MCS) or from MCS to WCS.
After it has been set, the signal is active for 1 PLC cycle.
Signal state 0 or
edge change 1 → 0
No effect
Application
example(s)
The interface signal:
DB19, DBX20.7 (change over MCS/WCS)
must be transferred to the interface signal:
DB19, DBX0.7 (actual value in WCS)
in order that the changeover becomes effective.
Corresponding to ... DB19, DBX0.7 (actual value in WCS)
DB19
DBB22 displayed channel number from HMI
Edge evaluation: no Signal(s) updated: Cyclic
DB19
DBB24 Actual image number of the JobShop interface
Edge evaluation: no Signal(s) updated: Cyclic
DB19
DBX26.1 OK (job list selection from PLC, status)
Edge evaluation: No Signal(s) updated: Cyclic
Signal state 1 or
edge change 0 → 1
Transfer correctly completed
Signal state 0 or
edge change 1 → 0
Transfer completed with error
Corresponding to ... Valid for HMI Advanced
DB19
DBX26.2 Error (job list selection from PLC, status) (previously bit 0)
Edge evaluation: No Signal(s) updated: Cyclic
Signal state 1 or
edge change 0 → 1
Transfer completed with error
Signal state 0 or
edge change 1 → 0
Transfer correctly completed
Corresponding to ... Valid for HMI Advanced
DB19
DBX26.3 Active (job list selection from PLC, status)
Edge evaluation: No Signal(s) updated: Cyclic
Signal state 1 or
edge change 0 → 1
Job in progress
Signal state 0 or
edge change 1 → 0
No task in progress
Corresponding to ... Valid for HMI Advanced
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