Allen-Bradley Logix5000 Reference Manual page 496
1756 controllogix,
1768 compactlogix,
1769 compactlogix,
1789 softlogix,
1794 flexlogix,
powerflex 700s with drivelogix
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Also See for Logix5000:
- Programming manual (92 pages) ,
- User manual (84 pages) ,
- Application book (56 pages)
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Chapter 13
Special Instructions (FBC, DDT, DTR, PID)
Condition
496
Execution:
Relay Ladder Action
Prescan.
Compare.EN bit is cleared.
Compare.FD bit is cleared.
Examine
compare.DN bit.
compare.DN = 1
Compare.DN bit is cleared.
Compare.POS value is cleared.
Result.DN bit is cleared.
Result.POS value is cleared.
Rung-condition-out is set
to false.
End
Rockwell Automation Publication 1756-RM003N-EN-P - October 2011
Compare.DN = 0
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