Detailed Description
2.1 Various interface signals and functions (A2)
Basic logic functions: NC/PLC interface signals (Z1)
22 Function Manual, 11/2006, 6FC5397-0BP10-2BA0
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
DBX22.0 - DBX22.7
displayed channel number from HMI
Edge evaluation: no Signal(s) updated: cyclic
DB19
DBX24.0
Error (status RS-232-C from PLC)
Edge evaluation: no Signal(s) updated: cyclic
Signal state 1 or
edge change 0 → 1
Error status active
Signal state 0 or
edge change 1 → 0
Error status inactive
Application
example(s)
The actual status of the RS 232 C is sent to the PLC in the acknowledgment byte DB19.DBB24.
Corresponding to .... Applies to HMI Embedded
DB19
DBX24.1
O.K. (status RS-232-C from PLC)
Edge evaluation: no Signal(s) updated: cyclic
Signal state 1 or
edge change 0 → 1
O.K. status active
Signal state 0 or
edge change 1 → 0
O.K. status inactive
Application
example(s)
The actual status of the RS 232C is sent to the PLC in acknowledgment byte DB19.DBB24.
Corresponding to .... Applies to HMI Embedded
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