FnIO module - 4-channel current input module ST3234
processes current signals from 4 to 20 mA
Delisting
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- The analog input module processes current signals from 4 mA to 20 mA
- Galvanic isolation of the input signal from the system level with a resolution of 14 bits
- Power supply via internal system voltage
- Common ground potential of the input channels

The analogue input module processes signals with a standardized value of 4 mA to 20 mA. The input signal is transmitted electrically isolated to the system level with a resolution of 12 bits. The internal system voltage is used for the power supply. The input channels of the module have a common earth potential.
Power supply:
via system voltage 5 VDC
Power consumption:
max. 165 mA at 5 VDC
Isolation:
I/O and logic: optocoupler
Cross sections:
I/O cable max. 2 mm²
Connection technology:
Removable connection level (terminal blocks)
Dimensions (LxHxW):
12 mm x 99 mm x 70 mm
Operating temperature:
0 °C to 60 °C
Number of inputs:
4 channels single ended, no isolation between the channels.
Indicators:
4 x green/red for status, 1 x green/red for FnBus status
Resolution in steps:
14 bits with 0.9 µA/bit
Data width:
16 bit integer (2's complement)
Measurement error:
+0.1 % of the full scale value at 25 °C,
+0.3% of the full scale value at 0 °C and 60 °C.
Input impedance:
120 Ohm
Conversion time:
4 ms/all channels

Configuration software for FnIO modules
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