Rockwell Automation 1771-DA,D17716.5.13 U MNL 1771-DA ASCII I/O MODULE - Manual (Page 157)

Function of Control/Status Bits
Chapter 6
6Ć22
Bit Status Function
02Ć00 I/O Buffer Split 000* = 50/50 Input/output
001 = 100/0 Input
010 = 75/25 Input/output
011 = 25/75 Input/output
all other = 50/50
*Default value when you do not
select that initialization word.
Initialization Word Four
Bit Function Status
17 Not used Set it to zero
16Ć10 Removes Fill
Character (Data
mode) BCD Delimiter
(RG mode)
Bits 10Ć13 = First ASCII character
Bits14Ć16 = Second character
Module defaults to colon (:) if IW4 is not used.
07Ć04 Removes Trailing
Characters
Bits 04, 05 = First Hex digit
Bits 06, 07 = Second Hex digit
Module removes 15 characters, max.
Zero characters for default
03Ć00 Removes Header
Characters
Bits 00, 01 = First Hex digit
Bits 02, 03 = Second Hex digit
Module removes 15 characters, max.
Zero characters for default