Rockwell Automation 1771-DA,D17716.5.13 U MNL 1771-DA ASCII I/O MODULE User Manual
Page 112
ASCII I/O Module Tutorial
Chapter 4
4Ć38
Results The file displays the five character string in ASCII or in hex,
respectively. The data is left justified.
RADIX = %A START = WO006:0000
WORD #
00000
0
00H00H
1
00H00H
2
3
4
5
6
7
00010
00H00H 00H00H 00H00H 00H00H 00H00H 00H00H
RADIX = %H START = WO006:0000
WORD #
00000
0
0000
1
0000
2
3132
3
3334
4
3520
5
2020
6
2020
7
2020
00010
2020
2020
0000
0000
0000
0000
0000
0000
Notice the following:
The data string of five characters was transferred when you entered the
end-of-string delimiter.
The end-of-string delimiter was not transferred to the data table.
The data was left justified.
The module added fill characters, blanks in ASCII or 20 in hex, in
display words 4 (lower byte), 5, 6, 7, 20, and 11 to complete the string.
String Length Greater Than Module's String Length
When the module receives a string of data greater than the set string
length, it does the following:
Immediately transfers the number of characters equal to its set string
length to the processor.
Sets bit 14 in status word one, Input String > Maximum, SW1(14). The
bit is immediately reset when the processor confirms receipt of data.
Retains the balance of data in its input buffer.
Transfers the balance of data with new data when it receives enough
new data to complete the string, or when the new data contains an
end-of-string delimiter.