Rockwell Automation 22-SCM-232 Serial Converter Module User Manual
Page 65
MicroLogix 1200/1500 Example Ladder Program
E-5
The data table used by the example ladder program is explained below:
Figure E.2 MicroLogix 1200/1500 Ladder Example Data Table Values
The following screens (
Figure E.3
to
Figure E.6
) provide details of the
MSG instructions used in the ladder example:
N7:
Address
Name
Example
Value
(decimal)
Example Value Description
0
Constant “0”
0
Fixed to “0” and used to clear
read data on the first scan of
the ladder program
10
Logic Status
1807
See Logic Status bit
descriptions (Appendix I)
11
Drive Error Code
0
No errors
12
Commanded Frequency
336
33.6 Hz
13
Output Frequency (feedback)
336
33.6 Hz
14
Output Current
1
0.01 A
15
DC Bus Voltage
3308
330.8 V
16
Output Voltage
1343
134.3 V
20
Logic Command
16
See Logic Command bit
descriptions (Appendix I)
21
Reference
336
33.6 Hz
30
Pr. 39 - [Accel Time 1] Write Value 100
10.0 Seconds
31
Pr. 39 - [Accel Time 1] Read Value 100
10.0 Seconds