Owner's manual

ASCII I/O Module Tutorial
Chapter 4
441
1. Increase the number of initialization words to four by setting
appropriate bits. Set IW1=0003. Use procedure in section titled
“String Length Less Than Module’s String Length”, P. 3-10.
2. Select the slash symbol (/) as the fill character to be removed using
procedure in section titled “Setting Bits In Initialization Words”, P.
3-30. The ASCII / is 2F in hex. Set IW4 = 2F00.
Display The initialization word file is displayed in hex and binary,
respectively, as follows:
RADIX = %H ST AR T = WO007:0000
WORD #
00000
0
0000
1
0000
2
0003
3
0015
4
0D00
5
2F00
STAR T = WO007:0000
WORD #
00000
2
000000000000010
3
0000000000010101
4
0000110100001000
5
0010111100000000
NOTE: Binary words 0 and 1 were omitted for brevity .
3. Enter: //AS//23//AS//4[ENTER]
Refer to procedures in section titled “Reading Data From Your ASCII
Device” (P. 1-28).
Procedure P1 Connect the 1770CB cable, and set your industrial
terminal to alphanumeric mode (check parameters)
Initialize the module by changing PLC3 operation mode
3[ENTER]2[ENTER]
Procedure P2 Enter your data
Procedure P3 Connect the 1775CA T cable, and set your industrial
terminal to PLC3 mode
Procedure P4 Observe how the data string is stored in data table file O6:0
Results The module transferred the data characters, extracted the fill
character, added its own fill character, and right justified the data.