Microscan MS-2 Instrukcja Użytkownika Pobierz pdf (Strona 114)

A-16 MS-2 CCD Reader User’s Manual

Glossary of Terms

PLC — See Programmable Logic Controller.

Port — Logical circuit for data entry and exit. (One or more ports may be included within a

single connector.)

Programmable Logic Controller (PLC)

— An electronic device used in industrial automation

environments such as factory assembly lines and automotive manufacturing facilities.

Protocol — The rules for communication between devices, providing a means to control

the orderly flow of information between linked devices.

Random Access Memory (RAM) — A data storage system used in computers, composed

of integrated circuits that allow access to stored data in any sequence without movement

of physical parts.

Read Cycle — A programmed period of time or condition during which a reader will accept

symbol input.

Read-Only Memory (ROM) — A data storage medium used in computers and other

electronics, primarily used to distribute firmware.

Skew — Rotation of a linear or 2D symbol around an axis parallel to the symbol height on

the substrate. See the illustration under the definition of Pitch.

Substrate — The surface upon which a symbol is printed, stamped, or etched.

Symbol Transitions — The transition of bars and spaces on a symbol, used to detect the

presence of a symbol on an object.

Symbology — A symbol type, such as Code 39 or Code 128, with special rules to define

the widths and positions of bars and spaces to represent specific numeric or alphanumeric

information.

Tilt — Rotation of a linear or 2D symbol around an axis perpendicular to the substrate.

See the illustration under the definition of Pitch.

Trigger — A signal, transition, or character string that initiates a read cycle.

Very Large-Scale Integration (VLSI)

— The creation of integrated circuits by combining

thousands

of transistor-based circuits on a single chip.

VLSI

— See

Very Large-Scale Integration

1 2 ... 109 110 111 112 113 114 115 116 117 118 119 ... 124 125

Brak uwag

Microscan MS-2 Instrukcja Użytkownika Strona 114