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Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

Allen-Bradley MicroLogix 1100
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Publication 1763-RM001C-EN-P - October 2009
Sequencer Instructions 241
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.
This instruction uses the following operands:
• File - This is the sequencer reference file. Its contents, on an
element-by-element basis, are masked and compared to the masked
value stored in source.
TIP
If file type is word, then mask and source must be
words. If file type is long word, mask and source
must be long words.
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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Allen-Bradley MicroLogix 1100 Specifications

General IconGeneral
BrandAllen-Bradley
ModelMicroLogix 1100
CategoryController
LanguageEnglish

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