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