Omron SYSMAC CS Series Instruction & Reference Manual page 738

3. Instructions
Hint
A200.12 (Step Flag) is turned ON for one cycle
when STEP(008) is executed. This flag can be
used to conduct initialization once the step
execution has started.
Related Bits
Name
Step Flag A200.12
Normal ladder
program
Precaution
• The control bit, B, must be in the Work Area for STEP(008)/SNXT(009).
• A control bit for STEP(008)/SNXT(009) cannot be use anywhere else in the ladder diagram. If the
same bit is used twice, as duplication bit error will occur.
• If SBS(091) is used to call a subroutine from within a step, the subroutine outputs and instructions will
not be interlocked when the control bit turns OFF.
• SNXT(009) is executed when the execution condition is ON.
• Input SNXT(009) at the end of the step program area and make sure that the control bit is a dummy
bit in the Work Area. If a control bit for a step is used in the last SNXT(009) in the step program area,
the corresponding step will be started when SNXT(009) is executed.
704
Address
ON for one cycle when a step program is started using STEP(008). Can be used to reset
timers and perform other processing when starting a new step.
Step a starts when C turns ON
When d turns ON, b starts (A is interlocked)
B executed
e turns ON (B is interlocked)
(Dummy)
End of step programming area
0.00
W0.00
W0.00
0.01
A200.12
Details
A executed
Returns to normal ladder program
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Start
W0.00
A200.12
1 cycle