Micromod Micro-DCI: 53SL6000 Single Loop Controller Instrukcja Użytkownika Pobierz pdf (Strona 115)

Also, a prompt that can be in-

voked on the display in engi-

neer mode (e.g., cn.1); if

selected, it provides scrolling

capabilities through a series

of parameter prompts for con-

figuration purposes.

Parameter

One of many prompts subor-

dinated to a selected module

of the conF or ProG menus,

or a prompt in the oPEr menu,

that solicits configuration in-

put. Configuring a parameter

may require data to be en-

tered, a YES/no choice to be

made, or a selection made

from a list of items that ap-

pear sequentially in the red

dro as the scroll for-

ward/backward push buttons

are pressed.

Pass-Key

Two pass-keys can be config-

ured for the 53SL6000 con-

troller. A pass-key is a four

digit numeric value entered in

the red dro in response to the

key query to gain access to

either the conF menu or the

ProG menu in engineer

mode.

PID

A mnemonic that represents

the proportional, integral, and

derivative actions caused by

the control scheme algorithm

output.

Process

Variable

The process feedback input

signal provided by a measur-

ing transmitter device that is

computed against the control-

ler setpoint to determine the

deviation error and required

output to null the error.

Prompt

An engineer mode alphanu-

meric assigned to a menu,

module, or parameter that ap-

pears in a dro.

Proportional

Action (Pb)

Proportional action (Pb) pro-

duces a value calculated from

the difference between the

setpoint and process variable

values. Proportional action is

set as a percentage of the

proportional band (%PB) from

2% (narrow band - maximum

action) to 1000% (wide band -

minimum action).

Proportional

Speed

Floating

Control

This time proportional or

three step output is applica-

ble to all of the control

schemes. The controller out-

put is provided as hardware

contact levels from DO3 and

DO4 that are proportional to

the quantitative requirements

of the corrective action. It is

especially useful for motor-

ized control valves, whereby

the DO3 output drives the

valve in one direction and the

DO4 output drives the valve

in the opposite direction.

Push

Button

Any one of seven tactile

switches on the 53SL6000

controller faceplate used for

display panel operations.

Ratio

Control

A control strategy whereby

the controller maintains a

process variable in relation to

a measured wild variable.

This control strategy is imple-

mented in the 53SL6000 con-

troller with the factory default

settings, by selecting SnGL

for the ProG-cS-SchM pa-

rameter, and by selecting

K-SP for the setpoint mode

parameter conF-cn.1-SPM.

RS-232

Module

An option module that at-

taches to the rear of the

53SL6000 controller case to

provide personal computer

RS-232 COMM port connec-

tivity.

RS-485

Module

An option module that at-

taches to the rear of the

53SL6000 controller case to

provide datalink connectivity.

Setpoint

A displayed controller value

that represents a desired qui-

53SL6000 Instruction Manual Appendix A. Glossary

A-4

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