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PLC Concepts 1.6 Conversion between Ladder Diagram and Instruction List Mode Instruction LD X0 OR X1 LD X2 OR M0 ORI M1 ANB LD M2 AND Y0 ORB AN I X1 OUT Y0 AND C0 SET S0 STL S0 LD X10 OUT Y10 SET S10 STL S10 LD X11 OUT Y11 SET S11 SET S12 SET S13 STL S11 LD X12 OUT Y12 SET S20 STL S20 STL S12 STL S13 LD X13 OUT S0 RET LD X0 CNT C0 K10 LD C0 MPS AND X1 OUT M0 MRD AN I X1 OUT M1 MPP AN I M2 OUT M2 OR block OR block Block in series AND block Block in parallel The output continues based on status of ANI Multiple outputs Start of step ladder S0 status operates with X10 Output Y10 and transfer of step point Read S10 status Output Y11 and transfer of step points Read S11 status S11 operates with X12 Output Y12 and transfer of step points Convergence of multiple status End of step ladder Read X13 status and transfer of step point Return Read C0 Multiple outputs RST C0 END End of program 1-9 Ladder Diagram X0 X2 X1 Y0 X1 M0 C0 SET S0 M1 M2 Y0 S0 X10 S Y10 SET S10 S10 X11 S Y11 SET S11 SET S12 SET S13 S11 X12 S Y12 SET S20 S20 S12 S13 X13 S S S S0 RET X0 CNT C0 K10 C0 X1 M0 X1 M1 M2 M2 RST C0 END S20 S12 S13 X13 S S S S0 RET X0 CNT C0 K10 C0 X1 M0 X1 M1 M2 M2 RST C0 END C0 END SET S0 SET S10 SET S11 SET S12 SET S13 S11 X12 S Y12 SET S20 SET S20 RST C0