2 Functions of Devices in DVP-PLC c) The program: M1002 X0 X0 M0 M1 M1 Y7 M1 M1148 M0 X0 END 8. Example 4: Program of zero return for 1 acceleration section and 1 deceleration section The timing diagram of relevant flags: Accelerating to zero point Decelerating to zero point Zero return stops X0 M1144 M1148 M1149 Pulse output stops DVP-PLC Application Manual 2-108 RST M0 RST M1 SET M0 ALT M1 SET RST RST