Rockwell Automation Publication 1756-RM003N-EN-P - October 2011 345
Array (File)/Misc. Instructions (FAL, FSC, COP, CPS, FLL, AVE, SRT, STD, SIZE) Chapter 8
The following timing diagram shows the relationship between status bits and
instruction operation. When the instruction execution is complete, the .DN bit is
set. The .DN bit, the .EN bit, and the .POS value are cleared when the rung-
condition-in is false. Only then can another execution of the instruction be
triggered by a false-to-true transition of rung-condition-in.
One
Scan
Operation Complete
Clears status bits and clears
.POS value.
Rung-condition-in
.EN Bit
.DN Bit
Scan Of The Instruction
40010
No execution occurs.
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