Programming
Page 5-44
ABB Control - AC 31
1SBC 260400 R1001-b
06.99
5.10.2. Processing an analog input
The following example shows how to process the measurement of a distance sensor.
Measured
physical value
V10/-10V
Power +20/-20mA
Power 4-20mA
Value read in the
central unit
100 m
10
20
20
32760
y
m
x
0 m
0
0
4
0
-10
-20
-32760
The value read in the central unit should be scaled in order to be expressed in meters so that
the information may be sent, for example, to a display. In this case the measured value
y
is
such that:
y = (100 * x) / 32760
*:
Z1*
Z2:
Z3
A1
%IW63.00
VAL_32760
VAL_100
METERS
It is not necessary to scale values to carry out comparison tests (equal, greater, lesser...). The
compared values can be those read in the central unit.
Summary of Contents for AC 31
Page 1: ...Technical Manual Advant Controller 31 40 50 Series 1SBC 260400 R 1001 b ...
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Page 45: ...Technical specifications Page 3 2 ABB Control AC 31 1SBC 260400 R1001 b 06 99 ...
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Page 85: ...Installation Page 4 2 ABB Control AC 31 1SBC 260400 R1001 b 06 99 ...
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Page 130: ...Programming ABB Control AC 31 Page 5 21 1SBC 260400 R1001 b 06 99 ...
Page 182: ...Communication ABB Control AC 31 Page 7 11 1SBC 260400 R1001 b 06 99 ...
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Page 218: ...AC 31 technical documentation ABB Control AC 31 Index Page 1 1SBC 260400 R1001 b 06 99 Index ...