Allen-Bradley 1769-SM1 User Manual page 58

5-4 MicroLogix 1500 Ladder Example Program
Figure 5.3 MicroLogix 1500 Ladder Logic Channel 1 Subroutine
SBR SBR
0000 Subroutine
CH. 1
Stop
Command
B3:0
0001
0
CH. 1
Start
Command
B3:0
0002
1
CH. 1
Jog
Command
B3:0
0003
2
CH. 1
Clear Faults
Command
B3:0
0004
3
CH. 1
Forward
Command
B3:0
0005
4
CH. 1
Forward
Command
B3:0
0006
4
N7:2 = Reference (Low) value for 16-bit Reference, low word for 32-bit Reference
N7:3 = Reference (High) high word for 32-bit Feedback
0007
1769-SM1 Channel 1 Subroutine
Channel 1
Enable
O:1
0
1769-SM1
Channel 1
Logic Command
STOP
O:1
16
1769-SM1
Channel 1
Logic Command
START
O:1
17
1769-SM1
Channel 1
Logic Command
JOG
O:1
18
1769-SM1
Channel 1
Logic Command
CLEAR FAULTS
O:1
19
1769-SM1
Channel 1
Logic Command
FORWARD
O:1
20
1769-SM1
Channel 1
Logic Command
REVERSE
O:1
21
1769-SM1
Channel 1
REFERENCE
(Low)
COP COP
Copy File
Source #N7:2
Dest #O:1.2
Length 2