YOKOGAWA Centum-XL User Manual

Appendix 3. Tuning Parameter Differences
App.3-12
TI 33K01B10-50E
Table Equations for Tuning Parameters Requiring Conversion(1/2)
conversion
equation
Conversion Detail
Conversion Equation
(Y: converted; X: prior to conversion)
Remarks
(*1) Express MV range in engineering unit Y=(MSH-MSL) * X+MSL
(*2) Express DV span in engineering unit Y=(DSH-DSL) * X
(*3) Express PV span in engineering unit Y=(SH-SL) * X
(*4) Express MV span in engineering unit Y=(MSH-MSL) * X
(*5) Reverse 1 and 0
If(X==0)→Y=1
If(X==1)→Y=0
(*6) Express SV range in engineering unit Y=(SSH-SSL) * X+SSL
(*7) Express SV span in engineering unit Y=(SSH-SSL) * X
(*8)
Rate of change set value on UP/
DOWN side
Y=(X-SSL)/(SSH-SSL) * (MSH-MSL)
(*9) Number transfer Y=X-1
(*10) Bias calculation
BIAS=(BS/100+CS) * (MSH-MSL)
-{MSL/(MSH-MSL)}
+{SL/(SH-SL) * KP}
(*11) Switch position
If(X==1or2or3)→Y=X
If(X==4) →Y=3
(*12) Express PV range in engineering unit Y=(SH-SL) * X+SL
(*13)
Reectionoflinksourcerange No conversion No conversion
(*14) Conversion in input source range Y=X * (connecting range)
(*15) Response to 0, 1, and 2
If(X==0.0) →Y==0
If(X==50.0) →Y==1
If(X==100.0)→Y==2
(*16) Ratio gain KR=(SH-SL) * SSH/(MSH-MSL)/4 * KP KP=ratio gain
(*17) Batch set BSET=K8 * K9
(*18) Batch set ILST=PL * K9
(*19) Batch set PLST=DL * K9
(*20) PID parameter
In case of using D parameter, re-tuning of
PID is basically required because the D-term
calculation algorithm has been changed.
Refer to "4.5.3
Handling tuning
parameters."
(*21)
Sequence table, relational expression,
operational expression
There are difference in function as an
instrument (function block) rather than a
category of tuning parameter. (These are
automatically converted by the tool.)
Refer to "5.1.4
Comparison
of sequence
control function."
(*22) Internal switch
Take care that the switch number in the system
area is different. (This is the target of automatic
conversion by the tool.)
Refer to "5.1.4
Comparison
of sequence
control function."
(*23) Valve output monitoring
This parameter, which has been set in
[OperationCheckTime]ofthevalveoutput
monitoring builder in old FCS, is upgraded to
MTxx of VLVM in CENTUM VP.
(*24) Off-site instrument (BLEND)
BLEND and BLEND-1 instruments of
CENTUM-XL are integrated into the BLEND
block of CENTUM VP.
At this time, the interface from a
supervisory computer is also changed, thus
reimplementation of engineering is required.
Therefore, parameters with this conversion
number only indicates compatibility with XL-
to-VP upgrade, and is not actually the target of
conversion.
(*25) Alarm status
The basic alarm status still remains as ALRM.
CAL that was included in the conventional
alarm status is changed to the data status of a
process variable (such as &PV).
Refer to "5.1.2
Comparison
of function
block's common
function."
Mar. 27, 2015-00

YOKOGAWA Centum-XL Specifications

General

Brand	YOKOGAWA
Model	Centum-XL
Category	Industrial Equipment
Language	English