hi FAE
the question I faced was that I want to save the interpolator points being output by FBD into a document for txt. and then plot these points to a curve line by tool of Excel or Matlab. so how can I do it？ expect to your replay！

Hi,

would recommend to use:
SMC_AxisDiagnosticLog from sm3_basic library
Execute the fb in the motion task:
Example:

SMC_AxisDiagnosticLogInstance(bExecute:=TRUE ,bCloseFile:= FALSE,sFileName:= 'schreibs_da_rein.txt',
bSetPosition:= TRUE,bActPosition:=TRUE,bSetVelocity:= TRUE,bActVelocity:=TRUE,
bSetAcceleration:=TRUE, bActAcceleration:= TRUE,Axis:=Drive);

additional needed is to call the file writing in an file task

PLC_PRG.SMC_AxisDiagnosticLogInstance.WriteToFile(Axis:=Drive);

BR
Edwin

thanks for your replay. and sorry for that our version don't include this function. if I want to save these interpolator points into an array firstly, and then save the array to a TXT. How to do?