DVP- ES2/ EX2/ SS2/ SA2/ SX2/ SE&TP O pe r a t i on Ma nua l - Pr ogr am m i ng3- 12Program example:Ladder Diagram:X0Y1NOPNOP instruction will beomitted in the ladder diagramInstruction: Operation:LD X0 Load NO contact X0NOP No operationOUT Y1 Drive coil Y1Mnemonic Function Program steps ControllersES2/EX2 SS2 SA2SE SX2NP Negative contact to Positive contact 1Explanation:When the conditions preceding NP command change from false to true, NP command (works ascontact A) will be ON for a scan cycle. In the next scan cycle it turns OFF.Program Example:Ladder Diagram:M0 M1Y0PInstruction: Operation:LD M0 Load NO contact M0AND M1 Connect NO contact M1 in seriesNP Negative contact to Positive contactOUT Y0 Drive coil Y0Timing Diagram:A scan cycleM0Y0M1A scan cycleMnemonic Function Program steps ControllersES2/EX2 SS2 SA2SE SX2PN Positive contact to Negative contact 1Explanation:When the conditions preceding PN command change from true to false, PN command (works ascontact A) will be ON for a scan cycle. In the next scan cycle it turns OFF.Program Example:Ladder Diagram:M0 M1Y0PInstruction: Operation:LD M0 Load NO contact M0AND M1 Connect NO contact M1 in seriesPN Negative contact to Positive contactOUT Y0 Drive coil Y0
