Rockwell Automation 1403-NENET Ethernet Communication Card Installation Instructions - Manual (Page 62)

Publication 1403-IN005A-EN-P
C-2 Sample Ladder Listing
determine the address of the user populated setpoint data tables. After the
completion of the setpoint MSG Write, a diagnostic table MSG Read is
performed to verify the MSG Write was successful. If it was not successful,
further setpoints will not be written until the setpoint data table that caused
the error is corrected. If all the setpoints are written correctly, the Setpoint
mode bit is unlatched, and the Run mode bit is latched.
Run Mode
During initialization of Run mode, the sequencer input file is loaded with the
numbers corresponding to the MSG transfers to be performed. Once Run
mode has begun, the ladder program will remain in this mode.
SLC 500 Data Files Used
NOTE
The speed with which the process performs the MSG
transfers may be altered by rearranging or changing the size
of the MSG transfer sequence. However, the availability of
new data values is controlled by the Powermonitor II table
update rate.
NOTE
Recommended PLC/SLC Ethernet channel settings:
Message Connection Timeout - 15 seconds
Message Reply Timeout - 10 seconds
Table 3.1 Data Files
Data File Address Data File Size Description
B3 20 B3:0 Configuration mode
enable
B3:2 Run mode enable
B3:1 Setpoint mode enable
B3:300 One-shot bit
B3:301 One-shot bit
B3:302 One-shot bit
B3:303 One-shot bit
B3:304 One-shot bit