Rockwell Automation 1771-DA,D17716.5.13 U MNL 1771-DA ASCII I/O MODULE - Manual (Page 124)

ASCII I/O Module Tutorial
Chapter 4
4Ć50
For example, suppose that you want to display a column of 8-digit
diagnostic codes that indicate the status of system operation. The
diagnostic codes are the variable that your program moves into your
message file at the appropriate addresses.
To display the following diagnostic codes
12345678
ABCD4321
FACEBAC2
you will load your message file in hex as follows. Do this later in step 2.
RADIX = %A START = WO006:0000
WORD #
00000
0
0000
1
0000
2
1041
3
1038
4
3B36
5
413A
6
1234
7
5678
00010 3A00 1038 3B37 413A ABCD 4321 3A00 1038
00020 3B36 413A FACE BAC2 3A0D 0000 0000 0000
Notice the following:
The home position of the cursor (1041) appears once before you
specify line and column numbers.
The column numbers remained constant at 31 in this example.
The line numbers advanced by one (31, 32, 33,...) in this example.
The BCD delimiter (3A) precedes and follows the variable.
The end-of-string delimiter (0D) is placed at the end of this single
string.
Normally, you would enter zeros for variables (diagnostic codes) when
setting up your file, and your program would move real values into the
storage words for the variables. In this example, you will load the
diagnostic codes into the file.