Yokogawa EJX930A - Manual (Page 118)

<Appendix 4. Arithmetic (AR) Block>
A4-7
IM 01C25T02-01E
Relative
Index
Parameter
Write
Mode
Valid
Range
Initial
Value
View
Description / Remarks
1 2 3 4
21 BIAS_IN_1 0 4 IN_1 bias
22 GAIN_IN_1 0 4 IN_1 gain
23 BIAS_IN_2 0 4 IN_2 bias
24 GAIN_IN_2 0 4 IN_2 gain
25 BIAS_IN_3 0 4 IN_3 bias
26 GAIN_IN_3 0 4 IN_3 gain
27 COMP_HI_
LIM
+INF 4 High limit of compensation factor f.
28 COMP_LO_
LIM
-INF 4 Low limit of compensation factor f.
29 ARITH_
TYPE
1 to 10 0x01 1 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
* BTU stands for British thermal unit.
HTG stands for hydrostatic tank gauging.
30 BAL_TIME More
than 0
0 4 Time taken to return to the set value.
31 BIAS 0 4 Bias value used to calculate the output.
32 GAIN 1 4 Gain value used to calculate the output.
33 OUT_HI_
LIM
+INF 4 Maximum output value.
34 OUT_LO_
LIM
-INF 4 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.