Response Electronics CL6011B Dokumentacja Pobierz pdf (Strona 288)

Glossary

Original Ć June 1990CE4.2:CL6211

Algorithm A set of logical steps to solve a problem or accomplish a task. A

computer program contains one or more algorithms. Many

configurations of PROVOX systems also contain algorithms, particularly

in operations, procedures, and function sequence tables.

Alphanumeric Consisting of letters or numbers.

Analog Infinitely variable over a given range. A process control system senses a

physical variable such as voltage, current, or resistance as an analog value.

Analog Input (AI)

A PROVOX point type. An analog input point receives a single analog

value, the process variable.

Analog Output (AO)

A PROVOX point type. An analog output point generates a single analog

value, the set point.

Analog to Digital Converter (A/D or ADC)

An integrated circuit device that converts analog signals into a digital

form. This enables a digital computer to operate on such signals.

AntiĆReset Windup

An additional gain factor, equal to 16 times the integral (reset), applied to

controllers to help them recover faster from output saturation, or windup.

AO Acronym: Analog Output

Architecture The arrangement and interconnection of the various parts of a

microprocessor or computer system.

Array A computer or microprocessor variable for the storage of many values of

the same type, with indices that permit access to values individually or in

certain groups. Common arrays are oneĆdimensional (a simple row),

twoĆdimensional (an arrangement of rows and columns), and

threeĆdimensional (an arrangement of rows or columns along the x, y,

and z axes). Some computer languages allow arrays that have more than

three dimensions.

ARW Acronym: AntiĆReset Windup

ASCII A standard digital encoding scheme for data: a 7Ćbit binary code

represents numbers, letters, symbols, and control codes. (The

designation is an acronym for American Standard Code for Information

Interchange.) Also, a PROVOX point type. An ASCII point contains a

single real value, referenced by the set point attribute, and an

80Ćcharacter ASCII string.

- ASCII

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Response Electronics CL6011B Dokumentacja Strona 288