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Thanks Support    That helped
Next issue is that I'm trying to run two PMW outputs concurrently controlled by two different custom functions the problem being that i cant get the two output s to operate at the same time, the second  out put wont operate until the first has completed its pulse train  [ can combine both outputs into one custom function but this becomes a bit clumsy and difficult to adjust

Hi All
I'd appreciate any thoughts on an issue I'm having with a PWM function on a T100MD that I'm using in the development stage of a project which will shift a truck's AMT type  transmission directly to 5th gear. I need to position the gear selector actuator selector opposite 5th gear gate. I'm trying to reproduce to factory pulse train.
The problem is that the amount of PWM seems to be difficult to control for some reason. When Start contact closes the output 7 pulses at 500 hz 90% PWM but wont turn off when start contacts open and continues with the pulse train

                                                 Start         Clk:.05s                                                                                     cf  1
                                             ----II------------II--------------------------------------------------------------------{dCusF}

Function 1
' set pwm level for side shift function   
 SetPWM 1,A,500

    Function 3               
   if testio (r1) = 1
   then
   A = DM[1]
   else A = DM[2]
   endif
   
 
  if testio (r2) = 0
  then DM[1] = 0
  else DM[1] = 9000
  endif

  if testio (r2) = 0
  then DM[2] = 0
  else DM[2] = 3500
  endif


Not sure if this make sense, I know I've only shown a small part the program

Cheers Pete

  Thanks for the feed back, I thought that this may be the case but was hoping for an easier work around, but such is life 
FYI the two PWM  signals is quite common on heavy automotive diesels, from the foot throttle to the engine ECU .   Normally we would use the auxiliary external throttle input for engine speed control, but this is not an option in this case.