Rockwell Automation 1761 MicroLogix 1000 Programmable Controllers - Manual (Page 386)

Preface MicroLogix 1000 Programmable Controllers User Manual
E–36
Spray Booth Application Example
The following application example illustrates the use of bit shift and FIFO
instructions in an automated paint spraying operation. For a detailed explanation of:
•
XIC and OTE instructions, see chapter 6.
•
EQU and LIM instructions, see chapter 7.
•
FFU and FFL instructions, see chapter 9.
•
BSL instruction, see chapter 11.
Bar Code Reader
I:0/2,3,4
Input
Proximity
Switch I:0/1
Paint Spray Booth
B3/0 B3/1 B3/2 B3/3
Bit Shift
FIFO
Paint Sprayer Signals
Spray Enable O:0/3
Blue Paint Gun O:0/0
Yellow Paint Gun O:0/1
Red Paint Gun O:0/2
0 1 0 1
1 2 3 4
N7:3 N7:2 N7:1 N7:0
Blue Red Blue Blue
Position