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Analog Value Processing
Special Features of the 466 Module
12
•
Bit 15 (2
) indicates the sign in the case of bipolar measured value representation (two's
complement and number with sign).
11
•
Bit 14 (2
) is not used in the case of bipolar measured value representation (no overrange!).
•
The 466 module has no overrange.
•
Selective sampling is not possible on the 466 module (activity bit is not set).
Types of Representation for the 460 and 465 Analog Input Modules
The way in which the analog value is represented depends on the type of module (see Tables 10-18
to 10-24).
Table 10-18. Representation of Digitized Measured Values of the 460 and 465 AI
( Two's Complement ; Measuring Range±50 mV,±500 mV,±1000 mV)
Meas.
Meas.
Meas.
Value
Value
Value
in mV
in mV
in mV
(±50)
(±500)
(±1000)
100.0
1000.0
2000.0
99.976
999.76
1999.52
:
:
50.024
500.24
1000.48
50.000
500.00
1000.00
49.976
499.76
999.52
:
:
25.000
250.00
500.00
24.976
249.76
499.52
.:
:
0.024
0.24
0.000
0.00
-0.024
-0.24
:
:
-24.976
-249.76
-499.52
-25.000
-250.00
-500.00
:
:
-49.976
-499.76
-999.52
-50.000
-500.00
-1000.00
-50.024
-500.24
-1000.48
:
:
-99.976
-999.76
-1999.52
-100.0
-1000.0
-2000.0
Overflow
Overrange
Nominal range
10-40
Digitized Measured Value
Units
15 14 13 12 11 10
4095+OV
0
1
4095
0
1
:
:
2049
0
1
2048
0
1
2047
0
0
:
:
1024
0
0
1023
0
0
:
:
1
0.48
0
0
0
0.00
0
0
-1
-0.48
1
1
:
:
-1023
1
1
-1024
1
1
:
:
-2047
1
1
-2048
1
1
-2049
1
0
:
:
-4095
1
0
-4095+OV
1
0
9
8
7
6
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
:
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
:
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
S5-115U Manual
T F OV
Range
5
4
3
2 1 0
1
1
1
0 0 1
1
1
1
0 0 0
0
0
1
0 0 0
0
0
0
0 0 0
1
1
1
0 0 0
0
0
0
0 0 0
1
1
1
0 0 0
0
0
1
0 0 0
0
0
0
0 0 0
1
1
1
0 0 0
0
0
1
0 0 0
0
0
0
0 0 0
0
0
1
0 0 0
0
0
0
0 0 0
1
1
1
0 0 0
0
0
1
0 0 0
0
0
1
0 0 1
EWA 4NEB 811 6130-02b
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