Siemens SIMATIC ET 200SP Manual page 22

Note
For the 3-wire connection configure the parameter "Type/range of measurement" with
"Current (4-wire transducer) 0..20 mA" or "Current (4-wire transducer) 4..20 mA".
Note
Unused channels
Deactivate the unused inputs in the parameter assignment.
A deactivated channel always returns the value 7FFF
7F800000
Note
Note that the settings in the "Interference frequency suppression" parameter have a direct
effect on the cycle time of the module. The analog value is therefore also affected by
additionally set filtering via the "Smoothing" parameter.
Property of the module in isochronous mode
The permitted interference frequency suppression of both channels for isochronous mode of
the modules is 4.8 kHz (0.625 ms).
Note that no instantaneous value for the time Ti is returned in isochronous mode. The analog
module AI 2xU/I 2-/4-wire HF returns a mean value for the range of 0.625 ms starting at Ti.
Analog input module AI 2xU/I 2-/4-wire HF (6ES7134-6HB00-0CA1)
Equipment Manual, 05/21, A5E51055079-AA
).
H
Parameters/address space
(with configuration SCALE:
H
5.2 Parameters
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