Yokogawa Data Acquisition with PID Control CX2000 - Manual (Page 178)

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IM 04L31A01-17E
6
Command
6.8 Basic Setting Commands
(Control)
Control Action, Input Setting
GB
Sets the PID group number
Syntax GB p1
p1: PID group number (1 to 8)
Query GB?
Example Set the PID group number to 6.
GB6
GI Sets the control period
Syntax GI p1
p1: Control period (250ms, 500ms, 1s)
Fixed to 1s for A/D integral time of 100 ms.
Query GI?
Example Set the control period to 500ms.
GI500MS
HX Sets control action parameters
Syntax HX p1,p2,p3,p4
p1: Zone PID selection (Off, On)
p2: Restart mode
(Continue, Manual, Auto)
p3: Restart mode (program)
(Continue, Manual, Reset)
p4: Initial PID (Temp, Press+Flow)
Query HX?
Example Set the zone PID to On, restart mode to auto,
restart mode (program) to manual, and set the
initial PID for temperature.
HXON,AUTO,MANUAL,TEMP
PY Sets 6/4loop select (CX2000 only)
Syntax PY p1
p1: Loop type (6Loop, 4Loop)
Query PY?
Example Switch the number of loops to 6.
PY6LOOP
HQ Turns Off/On auto tuning
Syntax HQ p1
p1: Auto tuning Off/On (Off, On)
Query HQ?
Example Turn On auto tuning.
HQON
PC Sets the control mode
Syntax PC p1,p2,p3
p1: Loop number (1 to 6) (1 or 2 on the CX1000)
p2: Control mode*
*: Off
Single
Cascade
PVSwitching
Retrans
p3: Switching method
(Range, PVHigh, Signal)
Query PC[ p1]?
Example Set the control mode of loop 1 to loop control
with PV switching and set the switching method
to temperature range.
PC1,PVSWITCHING,RANGE
Set the control mode of loop 3 to cascade.
PC3,CASCADE
PP Turns Off/On the program
control
Syntax PP p1,p2
p1: Loop number (1 to 6) (1 or 2 on the CX1000)
p2: Turns Off/On the program control (Off, On)
Query PP[ p1]?
Example Turn On program control of loop 3.
PP3,ON
GM Sets the PID control mode
Syntax GM p1,p2
p1: Loop number (1 to 6) (1 or 2 on the CX1000)
p2: PID control mode (Follow-up, Fixed-point)
Query GM[ p1]?
Example Set the PID control mode of loop 4 to fixed-point
control.
GM4,FIXED-POINT
HB Sets the burn out
Syntax HB p1,p2,p3
p1: Loop number (1 to 6) (1 or 2 on the CX1000)
p2: Input number (1 to 3)
1: Measure 1
2: Measure 2
3: Remote
p3: Burn out (Off, Up, Down)
Query HB[ p1,p2]?
Example Set the burnout of loop 6 measure 1 to Up.
HB6,1,UP
Description Valid when PV/SP computation is OFF.
6.8 Basic Setting Commands (Control)