DVP-ES3 Series Programming Manual Symbol PLF D ： Specified device Explanation 1. When the conditional contact switches from ON to OFF, the instruction PLF is executed, and the device D sends out a pulse for a scan cycle. 2. Do not use the instruction PLS in function blocks. _5 3. ISPSoft V3.06.01 supports data type D and the BOOL type variable for declaration. Example When M0 is ON, M10 is ON for a pulse time. When M10 is ON, M20 is set to ON. Timing chart 5-16 Instruction code Operand Function PLF D Falling-edge output Device DX DY X Y M SM S T C HC D D BOOL WORD DWORD LWORD UINT INT DINT LINT REAL LREAL TMR CNT STRING Data type D MX00.0 MM100 MY200.0 One scan cycle