ReadStart (FUN)ΒΆ
FUNCTION ReadStart : DINT
- Starts the reading of the pi.Usually this is the point when the pi 
- is read out from the device. 
- @param deviceId The id of the device. 
- @param taskId The id of the task. 
- @return Returns 0 on success, -1 otherwise. 
 
- InOut:
- Scope - Name - Type - Return - ReadStart- DINT- Input - deviceId- DINT- taskId- UDINT
