Micromod Micro-DCI: 53IT5100A Indicator/Totalizer - Manual (Page 46)

Table 4-3. Analog Input (ANI) Module
Purpose: This module is used to configure input voltage characteristics (e.g., input voltage
range), and how the input signals are interpreted (linear or square root representation).
Title Symbol ANI Data-
point
De-
fault
Attribute
Analog
Input
(Display
Only) ANI0
ANI1
ANI2
ANI3 ANI0
ANI1
ANI2
ANI3 H000
H001
H002
H003 0
0
0
0 This is the value in engineering units of the
measured input after all signal conditioning
has been applied.
Engineering
Span SPAN0
SPAN1
SPAN2
SPAN3 ANI0
ANI1
ANI2
ANI3 C256
C257
C258
C259 100
100
100
100 This determines the upper range the analog
input represents in engineering units. The
upper range value equals Engineering Zero
plus Engineering Span.
Engineering
Zero ZERO0
ZERO1
ZERO2
ZERO3 ANI0
ANI1
ANI2
ANI3 C276
C277
C278
C279 0
0
0
0 This is the lower range value.
Digital Filter
Index DFILT0
DFILT1
DFILT2
DFILT3 ANI0
ANI1
ANI2
ANI3 B269
B270
B271
B272 3
3
3
3 This controls a first order filter that is applied
to the input signal. The time constant is
entered as an index value as follows:
0 - No Smoothing (no effect)
1 - 0.05 s 6 - 3.1 s 11 - 102 s
2 - 0.1 s 7 - 6.3 s 12 - 205 s
3 - 0.3 s 8 - 12.7 s 13 - 410 s
4 - 0.7 s 9 - 25.5 s 14 - 819 s
5 - 1.5 s 10 - 51.1 s 15 - 1638 s
0 - 5 V Input NOBIAS0
NOBIAS1
NOBIAS2
NOBIAS3 ANI0
ANI1
ANI2
ANI3 L416
L417
L418
L419 0
0
0
0 Setting this parameter to 1 indicates the input
range is from 0 - 5 volts (0 - 20 mA). 0
indicates the input range is from 1 - 5 volts (4 -
20 mA).
Square Root
Signal SQRT0
SQRT1
SQRT2
SQRT3 ANI0
ANI1
ANI2
ANI3 L440
L441
L442
L443 0
0
0
0 When a 0, it indicates the analog input signal
should be interpreted linearly.
When 1, it indicates the analog input signal
should be interpreted as a square root
representation of the value.
When square root is selected, input signals
less than 1% (10% input range) force the input
to its zero value.
Calibrate
Zero CIZ0
CIZ1
CIZ2
CIZ3 ANI0
ANI1
ANI2
ANI3 B263
B264
B265
B266 This is the calibration zero adjustment. This
parameter is factory set and should not
need adjustment under normal operation.
See Section 5.3 for adjustment.
Section 4. Configuration Parameters
4-3