Rockwell Automation 1771-DA,D17716.5.13 U MNL 1771-DA ASCII I/O MODULE - Manual (Page 78)

ASCII I/O Module Tutorial
Chapter 4
4Ć4
Set bits in your initialization words to select desired module features as
follows:
1. Place the cursor on the file-to-file move instruction in rung 18. It
contains the file of initialization words.
2. Display the file.
Press [DISPLAY]1 for hex, or [DISPLAY] 0 for binary.
The file is displayed either in hex or binary as follows:
HEXADECIMAL
POSITION FILE DATA
001 0000
DATA MONITOR
002 0000
BINARY
DATA MONITOR
POSITION FILE DATA
001 00000000 00000000
002 00000000 00000000
Header information was deleted for brevity.
3. Enter initialization data into each file word by pressing [INSERT]
after you have entered data into the command buffer at the bottom of
the screen. Press [ ] to move to the next file word.
Enter data in binary or hex. Binary is easier to understand because you
set actual bits. Hex is faster and more convenient when you can convert
from binary to hex as follows (Table 3.A)
Table 3.A
Binary/Hex Conversion
Binary Hex Binary Hex Binary Hex Binary Hex
0000 0
0001 1
0010 2
0011 3
0100 4
0101 5
0110 6
0111 7
1000 8
1001 9
1010 A
1011 B
1100 C
1101 D
1110 E
1111 F
4. Terminate data entry and return to ladder diagram.
Press [CANCEL COMMAND]
You will often use the above procedure and the procedures from chapter 1
in this tutorial.
Setting Bits in Initialization
Words