ch should return a value of between 1 and 8. Speed pps is based on no. of pulse per second (pps) output by the pulse generator. The acceleration acc determines the total number of steps taken to reach full acceleration from standstill and the number of steps from full speed to a complete stop. The stepper motor calculates and performs the speed trajectory according to these parameters when the command STEPMOVE is executed.

STEPSPEED command should be executed at least once before executing any STEPMOVE command to control the pulse generation. The defined parameters will be remembered until another STEPSPEED statement operating on the same stepper channel is executed again.