AB Quality Allen-Bradley 2755-SN3, Руководство пользователя

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Glossary G–7
find and replacement strings. There are both metacharacter search
and replacement characters.
misread
A condition which occurs when the data output of a reader does not
agree with the encoded data presented.
modulo check digit or character
A calculated character within a data field used for error detection.
The calculated character is determined by a modulus calculation on
the sum or the weighted sum of the data field contents.
MTBF
Mean Time Between Failure.
multi-drop link
1) A link that has more than 2 stations. 2) Contrasted with
point-to-point link.
N
NAK
Negative acknowledgement. An ASCII control character transmitted
by a receiver as a negative response to the sender.
network
A series of stations (nodes) connected by some type of
communication medium. A network may be made up of a single
link or multiple links.
no-match
An output condition in which decoded data does not match an entry
in the match code table.
no-read
An output condition in which bar codes on a package are not read
correctly or are incomplete (fields per package count not satisfied).
node
The connection point at which media access is provided.