Rockwell Automation 1769-ASCII Compact I/O ASCII Module - Manual (Page 55)

Rockwell Automation Publication 1769-UM012B-EN-P - January 2014 55
Configure the 1769-ASCII Module Chapter 2
When the I/O module properties appear, enter the following information: a
name, the appropriate slot number, specify a Comm Format of Data_INT, and
enter the following values:
Data Type: AB:1769_ASCII:C:0
Data Type: AB:1769_ASCII_80Bytes_80Bytes:I:0