Table 4-4. analog input (ani) module – Micromod Micro-DCI: 53SL5100B Single Loop Controller User Manual
Page 35
53SL5100B Single-Loop Controller
INSTRUCTION MANUAL
29
Table 4-4. 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
ANI0
Datapi
nt
ANI1
Datapoint
Default
Attributes
Analog
Input
(Display
Only)
ANI H000 H001
0
This is the value in engineering units of the
measured input after all signal conditioning has
been applied.
Engineering
Span
SPAN C256 C257
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
ZERO
C276
C277
0
This is the lower range value.
Digital Filter
Index
DFILT B269 B270
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
2 - 0.1 s
3 - 0.3 s
4 - 0.7 s
5 - 1.5 s
6 - 3.1 s
7 - 6.3 s
8 -12.7 s
9 -25.5 s
10 -51.1 s
11 - 102 s
12 - 205 s
13 - 410 s
14 - 819 s
15 -1638 s
0 - 5 V Input
NOBIAS
L416
L417
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
SQRT L440 L441
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) forces the input to its zero value.
Calibrate
Zero
CIZ B263 B264
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.
Calibrate
Span
CIS C296 C297
This is the calibration span adjustment. This
parameter is factory set and should not
need adjustment under normal operation.
See Section 5.3 for adjustment.
Tag Name
AITAG
A224
A225
ANI-0
ANI-1
An assignable 10 character name for the analog
input (ANI-0, ANI-1, ANI-2, ANI-3).
Engineering
Units
AIEU A298 A299
PERCENT
(ALL)
Assignable for units of measure the ANI
represents (e.g., GPM for gallons/minute).