Rockwell Automation 1771-DA,D17716.5.13 U MNL 1771-DA ASCII I/O MODULE User Manual

Page 84

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ASCII I/O Module Tutorial

Chapter 4

4Ć10

DISPLAY The file-to-file move instruction displays your setting as
follows:

FILE DATA

POSITION Hex Binary

003

0D00 00001101 00000000

String Length Less Than Module's String Length

Whenever the ASCII module receives an end-of-string delimiter from the
ASCII device, it transfers the data in its input buffer to the processor. To
demonstrate this, you will enter a data string less than the set string length
as determined by IW2(00-13).

1.

Enter: 12345[RETURN]

Refer to the procedures in section titled “Reading Data from Your ASCII
Device”, P. 1-10.

Procedure P1 Set your industrial terminal to alphanumeric mode

Procedure P2 Enter your data

Procedure P3 Set your industrial terminal to PLCĆ2 mode

Procedure P4 Observe how data is stored in the data table

Results The read block transfer file displays the five character string in
positions 003 thru 010 (Table 3.E).

Table 3.E

String Length < String Length, Right Justified

POSITION

FILE DATA

ASCII Equivalent

001

002

003

004

005

006

007

008

009

010

E011

0000

2020

2020

2020

2020

2020

2031

3233

3435

status word one

status word two

1

2 3

4 5

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