Rockwell Automation 1761-HHP-B30 MicroLogix 1000 with Hand-Held Programmer (HHP) - Manual (Page 237)

Chapter 13
Using Application Specific Instructions
13–11
Operation
The operation of the SQC instruction is shown in the figure below. The
screens shown above the figure are the condensed screens that appear after
instruction entry is complete.
P 0 1 4 S Q C F I L E
# B 8 0 0 0 0 H
P 0 1 4 S Q C M A S K
F F F 0 H
P 0 1 4 S Q C S R C
I 0 0 0 0 0 H
P 0 1 4 S Q C R 0 3
L 4 P 2
0010 0100 1001 1101
1111 1111 1111 0000
0010 0100 1001 1010
0
1
2
3
4
Step
B8
9
10
11
12
Word
Input Word I0
Mask Value FFF0
Sequencer Ref File #B8
The SQC FD bit is set when the instruction detects that an input
word matches (thru mask) its corresponding reference word.
The FD bit R3/FD is set in this example, since the input word
matches the sequencer reference value using the mask value.