Rockwell Automation 22-SCM-232 Serial Converter Module - Manual (Page 55)

MicroLogix 1000 Example Ladder Program D-5
Figure D.1 Example MicroLogix 1000 Ladder Logic Program (Continued)
If a read is requested elsewhere in the user program (B3:0/1) and the previous MSG is complete, this MSG
will read Parameter 39 - [Accel Time 1]. Uses N150:x addressing, where 'x' equals the parameter number.
0008
B3:0
1
Pr. 39
Read
Request
B3:0
0
Pr. 39
Write
Request
N7:70
13
Done
(DN)
N7:70
12
Error
(ER)
B3:0
0
Pr. 39
Write
Request
N7:60
13
Done
(DN)
N7:60
12
Error
(ER)
EN
DN
ER
MSG
Read/Write Message
Read/Write
Read
Target Device 500CPU
Control Block N7:80
Control Block Length 7
Setup Screen
MSG