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6 Analog Input Units
NX-series Analog I/O Units User’s Manual for Analog Input Units and Analog Output Units (W522)
6-2 Input Range and Converted Values
6
z 1/8000 Resolution
A current of 4 to 20 mA is converted to a signed integer value (0 to 8000).
The input current range for which conversion is possible is 3.2 to 20.8 mA and here the converted
value is a signed integer value (-400 to +8400).
If the input value falls below the input range such as for a disconnection, and the input current is less
than 1.2 mA, the disconnection detection function activates and the converted value is 32767.
z 1/30000 Resolution
A current of 4 to 20 mA is converted to a signed integer value (0 to 30000).
The input current range for which conversion is possible is 3.2 to 20.8 mA and here the converted
value is a signed integer value (-1500 to +31500).
If the input value falls below the input range such as for a disconnection, and the input current is less
than 1.2 mA, the disconnection detection function activates and the converted value is 32767.
Input Range: 4 to 20 mA
+8400
+8000
−400
Converted value
(decimal)
Current
Disconnection detected
below 1.2 mA.
Fixed at the upper
limit in case of
20.8 mA or more.
4 mA
3.2 mA
20 mA
0
20.8 mA
1.2 mA
Fixed at the lower
limit in this range.
+31500
+30000
−1500
Converted value
(decimal)
Current
Disconnection detected
below 1.2 mA.
4 mA
3.2 mA
20 mA
0
20.8 mA
1.2 mA
Fixed at the lower
limit in this range.
Fixed at the upper
limit in case of
20.8 mA or more.
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