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How to Use the Step Ladder Program Block Appendix A
• When contact input to stop move to next step switch S2 (ITEM009) in the entire Step Ladder Program
block turns ON, program execution pauses at the currently operating STEP. Output is also held at the cur-
rent state at this time. When contact input to S2 (ITEM009) returns to OFF, program execution is resumed
from the STEP that was paused.
Multiple steps
STEP00
STEP01
STEP02
STEP03
STEP04
ITEM Command
011 (LOAD)
Operand
012 (AND)
013 (OUT)
ITEM Command Operand
014 (SP) 01 From here on declared to STEP01
015 (LOAD)
016 (AND)
017 (SET) A Move to next STEP02 at
establishment of final input
conditions (execution of SET)
ITEM Command Operand
018 (SP) 02 From here on declared to STEP02
019 (LOAD)
020 (AND)
021 (SET) B Move to next STEP03 at
establishment of final input
conditions (execution of SET)
indicates operation when run/stop command S1
turns ON.