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Analog Value Processing
Table 10-20. Representation of Digitized Measured Values of the 460 and 465 AI
(Number and Sign; Mesuring 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
:
:
0.0024
0.24
0.0000
0.00
0.0000
0.00
-0.0024
-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
Note
Bit 7 in the high-order byte is the sign (S).
If S is 0, the value is positive. If S is 1, the value is negative.
10-42
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
:
:
0.48
1
0
0
0.00
+0
0
0
0.00
-0
1
0
-0.48
-1
1
0
:
:
-1023
1
0
-1024
1
0
:
:
-2047
1
0
-2048
1
1
-2049
1
1
:
:
-4095
1
1
-4095+OV
1
1
Digitized Measured Value
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
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
:
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
1
1
1
1
1
1
1
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
0
0
0
0 0 0
0
0
1
0 0 0
1
1
1
0 0 0
0
0
0
0 0 0
1
1
1
0 0 0
0
0
0
0 0 0
0
0
1
0 0 0
1
1
1
0 0 0
1
1
1
0 0 1
EWA 4NEB 811 6130-02b
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