Allen-Bradley Logix5000 Reference Manual page 507

1756 controllogix, 1768 compactlogix, 1769 compactlogix, 1789 softlogix, 1794 flexlogix, powerflex 700s with drivelogix

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0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Reference (before compare)

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0

Reference (after compare)

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Rockwell Automation Publication 1756-RM003N-EN-P - October 2011

When enabled, the DDT instruction compares the source array_dint1 to the

reference array_dint2 and stores the locations of any mismatches in the result

array_dint3. The controller also changes the mismatched bits in the reference

array_dint2 to match the source array_dint1.

Special Instructions (FBC, DDT, DTR, PID)

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