Rockwell Automation 1747-KE,D17476.12 DH-485/RS-232C Interface Module - Manual (Page 91)

Publication 1747-UM005B-EN-P - March 2006
Application Examples 8-3
Configuration Results
Configuration occurs upon power up or when entering Run mode.
The configuration is successful only if data file N10:0=4. If your
configuration is unsuccessful, check the table below for the failed
configuration block.
Failed Configuration Block
If you need to reconfigure the module, set N10:0 equal to 0 and
change the incorrect parameters in N10:10-47.
If N10:0= Then failure occurred in the
0 DF1 port
1 DH485 port
2 Modem Init String (characters 1...14)
3 Modem Init String (characters 15...28)