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Allen-Bradley micrologix 1500 - Page 203

Allen-Bradley micrologix 1500
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Publication 1762-RM001C-EN-P
Sequencer Instructions 15-3
The following figure explains how the SQC instruction works.
SQC FD bit is set when the instruction detects that an input word matches
(through mask) its corresponding reference word.
The FD bit R6:21/FD is set in the example, since the input word matches
the sequencer reference value using the mask value.
EN
DN
FD
SQC
Sequencer Compare
File #B10:11
Mask FFF0
Source I:3.0
Control R6:21
Length 4<
Position 2<
SQC
Input Word I:3.0
0010 0100 1001 1101
Mask Value FFF0
1111 1111 1111 0000
Sequencer Ref File #B10:11
Word Step
B10:11 0
B10:12 1
B10:13 0010 0100 1001 0000 2
B10:14 3
B10:15 4

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