HELLO experts

          i want to use _addsegmenttocam .but there is a parameter i don't understand after read the maunul.

     "segmentbegin" "segmentend"

  Q1：   can i get some pictures which  show it ?

AND , Q2:can i use some _addsegmenttocam and then use _interpolateCAM  to get one cam?

 Q3;in the _interpolatecam  there are "noChangeDifferenceLeadingRange""noChangeDifferenceFollowingRange ""combineDifferenceLeadingRange""combineDifferenceFollowingRange"

 how to understand them ?

q4, i want to use _runtimelockedpositionprofile.

first i use the commads above to build the cam .

Q5 and then when i active the _runtimelockedpositionprofile direcitly the motor will move? or i need use some ohter auxilibry commads?

 thank you very much.

Hi.

Q2: Yes, you can use. First use _addsegmenttocam and after _interpolatecam

Q3: 'noChangeDifferenceLeadingRange (optional)' and 'noChangeDifferenceFollowingRange         (optional)'.  Specifies the distance between points up to which no addition/interpolation takes place in the value  range.  If there is no more space (value that you define in the parameter) then you can´t interpolate more points.

'combineDifferenceLeadingRange (optional)' and 'combineDifferenceFollowingRange (optional)'. Specifies the distance between points up to which the end point of the previous segment is joined to the start point of the following segment in the definition range.  If the gaps between segments/points are greater than the specified distance between points, interpolation takes place. For example If the distance  between first point and second point are greater that the value that you define in the parameter you can interpolate more points in this length.

Q5: I think that will not move, because first you need send basic comands, like _enableAxis(), And depends which commands are in the Buffer command for your axis. You can monitoring this using the commands tracking like _bufferAxisCommandID and others functions.

Hope this help you.

Regards.

Instead of using the more raw _addSegmentToCam, I like to use SIMOTION library LCamHdl .

You build up a structure for each line segment, as defined by start position, velocity, accel, and jerk, and end position, velocity, accel, and jerk. You pick a segment type like "POLY_5" and at the end when you call instFBCreateCam(execute := TRUE, ...) the library generates the coefficients and does the interpolation.

pdf here:
https://support.industry.siemens.com/cs/ww/en/view/105644659

You can get the library itself off the Utilities and Applications DVD of the Simotion installation. The easiest way is to put it in with Project Generator SIMOTION easyProject.