Rockwell Automation 1772-L8_LW_LWP_LX_LXP,D17726.5.8 User Manual User Manual
Page 162
![background image](/manuals/579854/162/background.png)
Data Manipulation and
Comparison Instructions
Chapter 12
12-7
Case 2. Lower Limit
YYY Upper Limit
120
06
0451
010
05
B
050
L
170
YYY
8
200
False
True
YYY
8
377
8
200
8
170
8
000
YYY
8
True
True
If YYY is equal to or less than 200 and equal to or greater than 170, the
comparison is false and logic continuity is not established. If YYY
8
is
greater than 200 or less than 170, the comparison is true and logic
continuity is established.
Keystrokes
Enter a Limit Test instruction by performing the following steps.
1.
Press -[L]-.
2.
Enter <address>.
3.
Enter <upper limit>.
4.
Enter <lower limit>.
Editing a Completed Rung
Edit the Limit Test comparison by performing the following steps.
1.
Positions the cursor over the limit instruction you are going to edit.
2.
Press -[L]-.
3.
Enter <address>.
4.
Enter <upper limit>.
5.
Enter <lower limit>.