Merge two (or more) Blocks In discrete motion

[Fred74]

Hello,

I  just tried the buffer mode with the axis interface (discrete Motion)

 The speed goes to zero between 2 Blocks (Move Absolute) see print screen.

My question : How could we manage a switching from the block N°1 to N°2 without stopping (by defining a speed setpoint at the postion set point) ? 

In the MLC there is the FB (Hydraulic) who manage the automatic swithing from one bloc to the next one. it is very usefull in a lot of applications. 

I was wondering if the buffer Mode could manage it. Is it plan to improve the buffer mode in the future?

 Thak you very much.

[CodeShepherd · Accepted solution]

Please have a look to the example of the motion interface itself that can be inserted as a template:

3: // move absolute - send three commands in one cycle 
     arAxisCtrl_gb[uiAxisIndex].PosMode.Position := 30;
     arAxisCtrl_gb[uiAxisIndex].PosMode.Velocity := 10;
     aruliReturnedCmdId[0] := arAxisCtrl_gb[uiAxisIndex].Admin.mTriggerMoveCmd(_OpMode:= ModePosAbs, Buffered:=TRUE, UserID:=CONCAT('my own id ', TO_STRING(uiMyOwnId)) );
     uiMyOwnId := uiMyOwnId + 1; 
     arAxisCtrl_gb[uiAxisIndex].PosMode.Position := -30;
     arAxisCtrl_gb[uiAxisIndex].PosMode.Velocity := 20;
     aruliReturnedCmdId[1] := arAxisCtrl_gb[uiAxisIndex].Admin.mTriggerMoveCmd(_OpMode:= ModePosAbs, Buffered:=TRUE, UserID:=CONCAT('my own id ', TO_STRING(uiMyOwnId)) ); 
     uiMyOwnId := uiMyOwnId + 1; 
     arAxisCtrl_gb[uiAxisIndex].PosMode.Position := 60;
     arAxisCtrl_gb[uiAxisIndex].PosMode.Velocity := 30;
     aruliReturnedCmdId[2] := arAxisCtrl_gb[uiAxisIndex].Admin.mTriggerMoveCmd(_OpMode:= ModePosAbs, Buffered:=TRUE, UserID:=CONCAT('my own id ', TO_STRING(uiMyOwnId)) ); 
     uiMyOwnId := uiMyOwnId + 1;
     uiState := uiState + 1;  // go direct to next state to avoid entering the commands again 
     
  4: // wait for CmdDone 
     IF arAxisStatus_gb[uiAxisIndex].Admin.CmdDone THEN
       uiState := uiState + 1;
		 END_IF