Control unit – Contour look-ahead
Contour look-ahead | |
Description | The PLC can use this control unit to request and read out information on contour elements from the CNC. The PLC can use this information to plan the look-ahead process. |
Data type | HLI_CONTOUR_LOOKAHEAD |
ST path | gpCh[channel_idx]^.contour_lookahead |
Command data | |
ST Element | .request |
Data type | |
Access | PLC writes request |
Return data | |
ST element | .response |
Data type | |
Access | PLC reads |
Flow control of commanded value | |
ST element | .semaphor_rw |
Data type | BOOL |
Value range | [TRUE, FALSE] |
Special features | Consumption data item |
Access | TRUE : PLC triggers on new request FALSE : CNC has read new request |
Status value | |
ST Element | .state |
Data type | |