<APPENDIX 6. Enhanced ARITHMETIC (AR) BLOCK>
A6-8
IM 01F06F00-01EN
Relative
Index
Parameter
Write Mode
Initial
Value
Description / Remarks
29 ARITH_TYPE
AUTO
0x01
Computation algorithm identification no.
Value
Selection Name
Description
1
Flow compensation, linear
Flow compensation (linear)
2
Flow compensation, square root Flow compensation (square root)
3
Flow compensation, approximate Flow compensation (approximate expression)
4
BTU flow (*)
Quantity of heat calculation
5
Traditional Multiply Divide
Multiplication and division
6
Average
Average calculation
7
Traditional summer
Summation
8
Fourth order Polynomial, (Type 1) 4th-order (auxiliary input) polynomial computation
9
HTG level compensation (*)
HTG-level compensation
10
Fourth order Polynomial, (Type 2) 4th-order (main input) polynomial computation
11 to 31 Reserve
For reserve of FF Std calculation.
32
Saturated steam (Temperature)
Density calculation of Sat.Steam (Temp.)
33
Saturated steam (Pressure)
Density calculation of Sat.Steam (Press.)
34
Superheat steam
Gas Temp./Press. compensation calculation
(Deviation factor: Fixed).
35
Gas temperature pressure
compensation
Density calculation of S.H.Steam
36
Liquid temperature compensation Liquid Temp. compensation Calculation
37
Gas temperature pressure
compensation (Detail)
Gas Temp./Press. compensation calculation
(approximating polynomial calculation: 0 to 11).
38
Liquid temperature compensation
(Detail)
Liquid Temp./Press. compensation calculation
(approximating polynomial calculation: 0 to 3).
* BTU stands for British thermal unit.
HTG stands for hydrostatic tank gauging.
30 BAL_TIME
AUTO
0
Time taken to return to the set value
31 BIAS
AUTO
0
Bias value used to calculate the output
32
GAIN
AUTO
1
Gain value used to calculate the output
33 OUT_HI_LIM
AUTO
+INF Maximum output value
34 OUT_LO_LIM
AUTO
-INF Minimum output value
35 UPDATE_EVT
—
Indicates event information if an update event (setting change) occurs.
36 BLOCK_ALM
—
Indicates alarm information if a block alarm occurs.
37
AR_
VOLUMETRIC_
FLOW_UNIT
O/S
m
3
/h
(1349)
Volumetric flow unit
38
AR_
TEMPERATURE_
UNIT
O/S
°C
(1001) Temperature unit
39 AR_BASE_
TEMPERATURE
MAN
0.0
Temperature unit at normal condition
40
AR_
PRESSURE_
UNIT
O/S
MPa
(1132) Pressure unit
41 AR_BASE_
PRESSURE_ABS
MAN
0.1013 Pressure unit at normal condition (abs)
42 AR_DEVIATION
MAN
1.0
Deviation factor
43 AR_DENSITY_
UNIT
O/S
kg/m
3
(1097) Density unit
44 AR_BASE_
DENSITY
MAN
1.0
Density unit at normal condition
45 AR_FIRST_
TEMP_COEF
MAN
0.0
1
st
temperature coefficient for liquid
46 AR_SECOND_
TEMP_COEF
MAN
0.0
2
nd
temperature coefficient for liquid
47 AR_FLOW_
CONFIG
MAN
all
0.0
A polynomial coefficient for density calculation (16)
Gas Temp./Press. Calculation (Detail): use FLOW_CONFIG[0] to [11]
Liquid calculation (Detail): use FLOW_CONFIG [0] to [3]
48 AR_DENSITY_
FACTOR
—
—
Correction value:
Mass flow output: density at operating condition
Volumetric flow output: ratio of density at operation condition to density at normal
condition.)
49 AR_DENSITY_
FACTOR_UNIT
—
Correction value unit. (The unit is indicated only for density at operation condition.)