DVP- ES2/ EX2/ SS2/ SA2/ SX2/ SE&TP O pe r a t i on Ma nua l - Pr ogr am m i ng1- 4C(Counter)(Relay)(Word)(Dword)Bit, word or double word memory used for counting and has coil, contact andregister in it. The counter count once (1 pulse) when the coil goes from OFF toON. When the predefined counter value is reached, the associated contact willbe energized. There are 16-bit and 32-bit high-speed counters available forusers. Device indication: Indicated as C and numbered in decimal, e.g. C0, C1,C2…C255D(Data register)(Word)Word memory stores values and parameters for data operations. Everyregister is able to store a word (16-bit binary value). A double word will occupy2 consecutive data registers. Device indication: Indicated as D and numbered in decimal, e.g. D0, D1,D2…D4999E, F(Index register)(Word)Word memory used as a modifier to indicate a specified device (word anddouble word) by defining an offset. Index registers not used as a modifier canbe used as general purpose register. Device indication: indicated as E0 ~ E7 and F0 ~ F7.1.5 Ladder Logic SymbolsThe following table displays list of WPLSoft symbols their description, command, and memoryregisters that are able to use the symbol.Ladder DiagramStructure Explanation Instruction Available DevicesNO (Normally Open)contact / A contact LD X, Y, M, S, T, CNC (Normally Closed)contact / B contact LDI X, Y, M, S, T, CNO contact in series AND X, Y, M, S, T, CNC contact in series ANI X, Y, M, S, T, CNO contact in parallel OR X, Y, M, S, T, CNC contact in parallel ORI X, Y, M, S, T, CRising-edge triggerswitch LDP X, Y, M, S, T, CFalling-edge triggerswitch LDF X, Y, M, S, T, CRising-edge trigger inseries ANDP X, Y, M, S, T, CFalling-edge trigger inseries ANDF X, Y, M, S, T, CRising-edge trigger inparallel ORP X, Y, M, S, T, CFalling-edge trigger inparallel ORF X, Y, M, S, T, CBlock in series ANB NoneBlock in parallel ORB None
