Communication problem with X20SM1436-1 for Stepper motor

The Stepper Modules are using the McStpAx Library implementation of mapp Motion.
Timing Requirements for Stepper

  1. See Chapter 3.3.1. Timing Settings of the Guide
    Guide Motion Commissioning for Beginners

  2. Please check that the Module-Ok Data-Point of the SM-Module is stable.

As you mentioned that you sychronised the X2X and PLK, so it will be the SystemTimer, TC#1 Timing or the Delay to end of Cycle setting which is missing?

Greetings
Michael