Rockwell Automation 2755-DM9, -DM9E High Speed Decoder - Manual (Page 11)

A–B
2 Chapter
2–1
Description of Hardware
This chapter provides an overview of the Catalog Number 2755-DM9,
-DM9E Bar Code Decoder. We also provide descriptions of the major
features.
Note: In this chapter and in subsequent chapters, we will refer to the Catalog
Number 2755-DM9, -DM9E High Speed Decoder as the decoder.
•
Catalog Number 2755-DM9 decoder includes a 120 VAC power cord, and
an English language manual. An LED label in English is attached to the
decoder.
•
Catalog Number 2755-DM9E decoder includes an unterminated 220 VAC
line cord and information for ordering User’s Manuals in English and
other languages. LED labels in English, French, German, Italian, and
Spanish are packaged with the decoder. Operation of the 2755-DM9 and
DM9E decoders is identical.
The decoder acquires video data from a separate laser scan head and then
decodes this data. The decoder can then:
•
Send the decoded data to another device such as a host computer,
auxiliary terminal, or programmable controller.
•
Compare the decoded data to previously stored data and use the results of
this comparison to operate up to eight discrete outputs (match code
operation).
Note: The decoder also maintains counters for package count, no-reads, and
discrete outputs.
The decoder is capable of decoding the following types of bar code symbols:
•
Code 39.
•
UPC-A and E
•
Interleaved 2 of 5.
•
EAN-8 and 13
•
Codabar.
•
Code 128.
Chapter Objectives
Differences between Catalog
Number 2755-DM9 & 2755-DM9E
Features