Response Electronics CL6011B Dokumentacja Pobierz pdf (Strona 302)

Glossary

Original Ć June 1990CE4.2:CL6211

Octal Involving eight characteristics, conditions, or possibilities. For example,

octal numbers have the base (radix) 8.

Operand A value that modifies or qualifies a function.

Operating Parameter

A parameter that appears in a point faceplate. Examples include process

variable, set point, valve output (percent IVP), mode, and alarms.

Operating System

The software that controls and supervises all the internal operations of a

computer.

Operation [See Unit Operation.]

Operator Action Request (OAR)

A notice of operator action required before a unit operation can continue.

Operator Station

A local control station that can be connected to controllers. An operator

station displays some of the same information that appears in a detail

display, and gives basic control over a DCP.

Overwrite To write data to a memory location that already contains information,

replacing the existing information with new information.

P Abbreviation: Proportional Control Action (Gain)

Packet A block of data, or message, handled by a communications network in a

wellĆdefined format.

Parallel Simultaneous: said of data transmission on two or more channels at the

same time.

Parallel Discrete Output (PDO)

A PROVOX point type. A PDO point generates values for 16 discrete

output channels, in the form of a binary value (0Ć65535) or binaryĆcoded

decimal value (0Ć9999).

PB Acronym: Proportional Band

PCA Acronym: Primary Control Algorithm

PCI Acronym: Pulse Count Input

Octal - PCI

1 2 ... 297 298 299 300 301 302 303 304 305 306 307 ... 319 320

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Response Electronics CL6011B Dokumentacja Strona 302