Cascade control (program control) – Yokogawa Data Acquisition with PID Control CX2000 User Manual

Page 412

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App-43

IM 04L31A01-01E

Appendix

App

Cascade Control (Program Control)

Local

Program

Program operation

Hold operation start

Advance operation start

Contact input

Contact input

PV event output

Time event output

Measurement alarm function

DI

DI

DI

DI

DI

DI

Program operation stop

Program operation start

Control computation section 1

SP ramp-rate setting

Secondary loop

SP 1 to 8

Primary loop

SP 1 to 8

Control computation section 2

Manual operation

Preset output

Current or

pulse

Relay

Run

Auto, cascade

Auto, manual

Manual

Stop

Stop/Run switching

Auto/Manual, cascade switching

Cascade switching

Cascade

Tracking signal

Output limiter

Control output

Program pattern selection

DO

DO

DO

DO

DO

DO

Note: Does not function

during program control

Primary loop

PV input

Secondary loop

PV input

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

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

Expansion

contact

input

Time

event

1

Time

event

2

Meas.

alarm

1

Meas.

alarm

2

PV

event

1

PV

event

2

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.

Appendix 7 Control Functon Blodk Diagram

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