Rockwell Automation 2755 Enhanced Decoder Series B - Manual (Page 342)

Glossary
Publication 2755-833
Glossary
A
ACK
See acknowledgement.
acknowledgement
An ASCII control character used to acknowledge the reception and
acceptance of a transmission block.
address
1) A character string that uniquely identifies a memory location.
2) A character string that uniquely identifies the physical location of
an input or output circuit.
AIM
Acronym for Automatic Identification Manufacturers.
alphanumeric
The character set containing letters, numbers, punctuation marks,
and symbols.
ASCII
American standards code for information interchange. It is a
seven-bit code with an optional parity bit used to represent
alphanumeric, punctuation marks, and control code characters.
AutoLoad
The ability to automatically fill the match code table with character
strings and symbology types by scanning bar codes.
AUX Port
Serial port that communicates with a standard ASCII terminal. The
AUX port can switch between two modes of operation; configuration
or manual data entry.
AUX Terminal
Terminal that connects to the AUX port and is used for configuration
or manual data entry functions.
AUX Terminal Selector
Mechanism that switches the AUX port between configuration and
manual data entry mode.
B
bar
The dark element of a printed bar code symbol.