PLS function block en twido PLC

J

Thread Starter

Juan

Hi,

I'm using PLS fuction block to control a stepper. To displace a kwon distance im genereting 25 steps and counting when the PLSx.D go set. then, later on the program i set the PLS to a infity number of pulse to reach a limit switch.

Every thing works fine at this point but later on the problem. i bring back the PLS to 25 steps but now the PLSx.D never go set.

Could somebody helps with some ideas?
 
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