Relay Ladder; Structured Text; Function Block - Allen-Bradley Logix5000 Reference Manual
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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Compare Instructions (CMP, EQU, GEQ, GRT, LEQ, LES, LIM, MEQ, NEQ)
Chapter 5
Example:
If value_1 is greater than or equal to value_2, set light_b. If value_1 is less than
value_2, clear light_b.
Relay Ladder
Structured Text
light_b := (value_1 >= value_2);
Function Block
Rockwell Automation Publication 1756-RM003N-EN-P - October 2011
233
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