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Rockwell Automation PLC-5 Fieldbus Solutions for Integrated Architecture User Manual User Manual

Page 183

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Publication 1757-UM006A-EN-P - May 2002

Standard Function Block Parameters A-3

Table A.6 BIAS

Table A.7 BKCAL_HYS

Table A.8 BKCAL_IN

Valid Views

VIEW_4

Storage

Static

Remarks

Initial value is 0

Classification

Simple Variable

Description

Specifies the Bias value in engineering units to be used in computing the
function block output

FF Data Type

Float

Range

OUT_SCALE +/- 10 percent

Usage

C/Contained

Length

4

Valid Views

VIEW_1, VIEW_3

Storage

Non-Volatile

Remarks

Normally, the operator has permission to write these values, but PROGRAM or
LOCAL remove the permission and grant it to a supervisory computer or a local
control panel.

Classification

Simple Variable

Description

Defines the amount of change an output value must attain from the limit
before the limit status is turned OFF.

FF Data Type

Float

Range

0 to 50 percent of output span

Usage

C/Contained

Length

4

Valid Views

VIEW_4

Storage

Static

Remarks

Initial value is 0.5 percent

Classification

Record

Description

The value and status from a lower block's BKCAL_OUT that is used to prevent
reset windup and to initialize the control loop.

FF Data Type

DS-65

Usage

I/Back-Calculation Input

Length

5