Rockwell Automation 1771-DA,D17716.5.13 U MNL 1771-DA ASCII I/O MODULE - Manual (Page 93)

ASCII I/O Module Tutorial
Chapter 4
4Ć19
Bit Setting
Conversion 16 15 14 Hex Setting
1 ASCII/word
4 Hex/word
4 BCD/word
3 BCD/word
0 1 1
1 0 0
0 1 0
0 0 1
IW2 = 3012
IW2 = 4012
IW2 = 2012
IW2 = 1012
Results The industrial terminal displays the corresponding line in
Table 3.K.
In report generation mode you can mix BCD digits with ASCII characters.
The module sets the ASCII data conversion to two ASCII characters per
word. You select the type of data conversion for BCD digits (either three
BCD of four BCD digits per word) in initialization word two (IW2). If
you want to transfer BCD digits, increase the number of initialization
words to four in IW1 and select the BCD delimiter in IW4.
In this demonstration you will select the following:
Four initialization words using IW1(00-01)
Report generation mode using IW1(02-04)
Data conversion of 3 BCD digits per word using IW2(14-16)
Slash symbol (/) as BCD delimiter using IW4(10-16)
1. Set the bits in all four initialization words using the procedure in
section titled “Setting Bits in Initialization Words”, P. 3-4.
Display The file-to-file move instruction displays your settings as
follows:
FILE DATA
POSITION Hex Binary
001
002
003
004
0007 00000000 00000111
1015 00010000 00010101
0D00 00001101 00000000
2F00 00101111 00000000
Selecting Report Generation
Mode, Data Conversion, and
BCD Delimiter