VARIABLE SUMMARY

A comparison between the variables in the Configurator and ONSPEC PID Record is listed in the following:

 

Variables in Control Block and Faceplate Menu

The controller tuning parameters that each controller may have. They allow you to make the controller work for a certain situation. For detailed information, refer to the topic of Controller Algorithm Description Section.

Configurator ONSPEC PID Record

Block Number BLO (Control Block No)
Sample Interval SFR (Scan Period)
Control ID Number CID
Block Type None
Faceplate Number ALG
Control Block Status CSS (Control Block Status)
SP EUR Index SID
SP Tag TAG (if defined in ONSPEC)
SP Lower Limit Value SMN
SP Upper Limit Value SMX
MV EUR Index MID
MV Tag TAG (if defined in ONSPEC)
MV Lower Limit Value MLO
MV Upper Limit Value MLO+MSP
OP EUR Index OID
OP Tag TAG (if defined in ONSPEC)
OP Lower Limit Value OLO
OP Upper Limit Value OHI
OTV EUR Index TID
OTV Tag TAG (if defined in ONSPEC)
OTV Lower Limit Value TLO
OTV Tag TAG (if defined in ONSPEC)
OTV Lower Limit Value TLO
OTV Upper Limit Value TLO+TSP
Status Word EUI Index None
Process Model No EUI Index None

 

Variables in Control Algorithm Menu

Configurator ONSPEC PID Record

(Primary) Block Number BLO (Control Block No)
Secondary Block Number K4
(ALG:100-104 only)  
(Primary ) Block Type None
(Primary) Block ALG ALG (Control Algorithm)
Controller Tuning Parameters  
1) ANN  
Kr (ANN Response Knob) KP
2),3),4): PIDs  
Kp KP
Ki KI
Kd KD
5): Ramp  
K1 (Ramping Up) KP
K2 (Ramping Down) KI
6): Integrator  
K KP
7) Lead-Lag  
K1 Kp
K0 KI
T1 KD
T0 K4
8) Second-Order Filter  
K2 KP
K1 KI
T2 KD
T1 K4
9) Dead-time  
K KP
Tc Ki
Tau KP
10) Linear  
K1 KP
K2 KI
11) Ratio  
K1 KP
K2 KI
K3 KD
15) Limit  
HL KP
LL KI
12) High Select  
13) Low Select  
14) Middle Select  
16) Loader  
(Blocks 12,13,14 and 16 have no tuning parameters.)
High Alarm Limit XHI
Low Alarm Limit XLO
High Alarm Enabled HAA
Low Alarm Enabled LAA
High Alarm Status Bit 15 of SW
Low Alarm Status Bit 14 of SW
System Alarm Flag Bit 13 of SW
Auto/Manual Bit 12 of SW
Reverse/Direct Bit 11 of SW
Remote/Local Bit 10 of SW
Setpoint Tracking Bit 9 of SW
Output Tracking Bit 8 of SW
(SW - Status Word of the block)  

 

Internal Variables

The following is a list of the internal variables that you can use ONSPEC Change button to view and change.
Configurator Internal Variable

Setpoint BLKSP11
Measured Variable BLKMV11
Output BLKOV11
Auto/Manual BLKAM11
Remote/Local BLKRL11
Setpoint Tracking BLKST11
Output Tracking BLKOT11
Kp BLKKP11
Ki BLKKI11
Kd BLKKD11
K4 BLKK411

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