Rockwell Automation 1771-DA,D17716.5.13 U MNL 1771-DA ASCII I/O MODULE - Manual (Page 7)

To Our Customers
Preface
3
You will use several procedures frequently in the tutorial chapters of this
manual. You may want to memorize the steps or have a reference copy of
the following procedures:
Reading Data From Your ASCII Device
Writing Data To Your ASCII Device
Setting Bits in Initialization Words
You can use an ASCII I/O module to input data to the processor from a
data source such as a bar code reader, output messages from the processor
to a display device, or bidirectionally exchange messages and/or data
between an intelligent data terminal and the processor. Typical examples
are as follows:
Devices
Type of
Device Applications
Bar code readers Input Part recognition, sorting, inventory control
Keypads Input Enter values, change data
DotĆmatrix scrolling
displays, terminals, or
printers
Output Display warnings or diagnostic messages,
print production reports
Intelligent data
terminals
Input/Output Enter values, change data, monitor or
troubleshoot a process
Computers Input/Output Exchange data files
Typical Applications