Program Examples:Camming by Virtual Master

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Introduction

Slave axis is driven by a virtual(simulated) master axis

Setup

Both master and slave axes are set as in previous examples

Program example

Creating Cam Table

Declaring a cam-table type global variable:

common shared CamTable1 as cam

Creating an empty cam table:

  • This table is not cyclic:
    CamTable1.Cycle = 1 
  • Not linked to anything other cam-tabels:
    CamTable1.Next = none
    CamTable1.Prev = none
  • making it 10000 points
  dim camsize as long = 10000
  createcamdata camsize CamTable1
  • Defining a 360 deg sine table:
  for i = 1 to CamTable1.Size 
    CamTable1.MasterData [i] = 360*(i-1)/CamTable1.Size ' Master in degrees
    CamTable1.SlaveData  [i] = cam_amplitude *sin (CamTable1.MasterData [i] * pi/180)
  next
  • Store the created file onto flash disk:
  storecamdata ct1.cam CamTable1   

Once the table is stored on the flash it can be re-loaded as: <pre

 loadcamdata ct1.cam CamTable1

</pre>