Allen-Bradley Logix5000 Reference Manual

362 Rockwell Automation Publication 1756-RM003N-EN-P - October 2011
Chapter 8 Array (File)/Misc. Instructions (FAL, FSC, COP, CPS, FLL, AVE, SRT, STD, SIZE)
Execution:
Condition Relay Ladder Action
Prescan The rung-condition-out is set to false.
Examine .DN bit.
.DN Bit = 0
.DN Bit = 1
Rung-condition-in is false.
Rung-condition-out is set
to false.
End
.EN bit is cleared.
.ER bit is cleared.
.DN bit is cleared.
.POS value is cleared.
INC Mode
No
Yes
ALL Mode
No
Yes
.EN bit is cleared.
.POS = .POS + 1
Numeric
Mode
Internal bit is cleared.
.LEN < 0 or
.POS < 0
Yes
No
Major Fault
.POS = .POS - 1
.POS = 0
Yes
No
.DN bit is set.
.EN bit is set.
.POS < .LEN
No
Yes
.LEN > mode
Yes
No
Mode = .LEN
.LEN = 0
Yes
No
.DN bit is set.
.EN bit is cleared.
page 355

Allen-Bradley Logix5000 Specifications

General

Brand	Allen-Bradley
Model	Logix5000
Category	Controller
Language	English