Appendix 7 control functon blodk diagram, Appendix 7, Single loop control (fixed-point contorl) – Yokogawa Data Acquisition with PID Control CX2000 User Manual

Page 409

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App-40

IM 04L31A01-01E

Appendix 7 Control Functon Blodk Diagram

Single Loop Control (Fixed-Point Contorl)

Input type selection

PV

input

Contact input

DI

DI

DI

Remote

input

Unit selection

Analog input range conversion

Square root computation

Input type selection

Unit selection

Analog input range conversion

Square root computation

Ten-segment linearizer approximation/

ten-segment linearizer bias

PV input bias

PV input filter

Remote input filter

Ratio bias computation

Control computation section

SP 1 to 8

SP ramp-rate setting

Manual operation

Preset output

Current or

pulse

Relay

Run

Auto

Local

Remote

Manual

Stop

Stop/Run switching

Manual/Auto switching

Remote/Local switching

Output limiter

DO

DO

DO

DO

DO

DO

Alarm1 Alarm2 Alarm3 Alarm4 Alarm1 Alarm2

Alarm function

Control output

Note: There are 6 contact input terminals and

6 contact output terminals on a single

control output terminal block.

The functions that can be assigned to

each input/output terminal vary depending

on the control mode and whether program

operation is enabled.

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