5. Loop Instruction Design Examples z Press the alarm reset button if the alarm situation is cleared. X1 = ON, the PLC will stop the main program to execute the interruption subroutine I101. In this case, sprayer Y0 and alarm Y1 will be shut down. After the execution of I101, the program will return to the main program and resume execution from the interruption point. DVP-PLC Application Examples 5-6