3. Timer Design Examples 3.13 Performing Accumulative Function with Normal Timer X0 Y0 X1 Car Washer GO Control Purpose: z Ensuring that the customers wash their cars for entire 5 minutes no matter how many times the sprayer valve stops. . Devices: Control Program: X0 M1 T1 X1 Y0 DVP-PLC Application Examples 3-21 Device Function X0 Sprayer valve switch. X0 = ON when the sprayer handle is held on tightly. X1 Coin detector. X1 = ON when an inserted coin is detected. M1 Creating a trigger pulse for one program scan cycle T1 Timer. Time base: 100ms D10 Storing present value of T1 Y0 Sprayer valve PLS M1 MOV D10 T1 TMR T1 K3000 MOV T1 D10 MOV K0 D10