Parameters/address space
4.3 Explanation of parameters
Analog input module F-AI 4xI 0(4)..20mA 2-/4-wire HF (6ES7136-6AA00-0CA1)
Manual, 08/2018, A5E41448857-AB
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4.3.2
Parameters of the channels
4.3.2.1
Interference frequency suppression
Here you set the interference frequency suppression for the line frequency:
●
50 Hz
●
60 Hz
You can find additional information on this in the Analog value processing function manual
https://support.industry.siemens.com/cs/ww/en/view/67989094
4.3.2.2
Evaluation of the sensors
Overview
Here you select the type of sensor evaluation:
●
"1oo1 evaluation (max. SIL3/Cat.3/PLd)"
●
"1oo2 evaluation (max. SIL3/Cat.4/PLe)"
If you do not want to measure with a channel or channel pair, disable the channel or the
channel pair.
1oo1 evaluation (max. SIL3/Cat.3/PLd)
With the 1oo1 evaluation, there is one sensor, and it is connected to the F-module via a
single channel.
1oo2 evaluation (max. SIL3/Cat.4/PLe)
With the 1oo2 evaluation, two input channels are occupied by:
●
Two single-channel sensors
●
One two-channel sensor
Note that in 1oo2 evaluation, two channels are combined into a channel pair.
Achievable safety class
Depending on the selected sensor evaluation, you achieve the following safety classes with
a sensor that is qualified accordingly:
●
SIL3/Cat.3/PLd for "1oo1 evaluation" or
●
SIL3/Cat.4/PLe for "1oo2 evaluation"
See also
Parameter assignment of discrepancy analysis for 1oo2 evaluation (Page 27)
