Siemens SIMATIC ET 200SP F-AI 4xI 0(4) 20mA 2-/4-wire HF Series User Manual

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
25
4.3.2.5
Tolerance window %, absolute
Function
If you have selected "1oo2 evaluation (max. SIL3/Cat.4/PLe)", you can enter the size of a
tolerance window for the discrepancy here for the channel pair. You specify the tolerance
window as a percentage of the full-scale value. The reference value is the full-scale value,
i.e. 20 mA. The entered value is rounded to one decimal place.
If two redundant input channels of the channel pair differ by more than the tolerance
specified here and for longer than the specified discrepancy time, the F-module detects a
discrepancy error and triggers a diagnostic interrupt.
For more information regarding setting the tolerance window, refer to Parameter assignment
of discrepancy analysis for 1oo2 evaluation (Page 27).
Example
You have assigned the following:
● The "Tolerance window % absolute" 10%
● The measuring range 0..20 mA
● A discrepancy time of 100 ms
The input channels may differ from the configured discrepancy time (100 ms) up to the max.
reaction time for a time window with a difference of more than 2 mA.
See also
Discrepancy time (Page 24)

Siemens SIMATIC ET 200SP F-AI 4xI 0(4) 20mA 2-/4-wire HF Series Specifications

General

Input channels	4
Wiring type	2-/4-wire
Series	SIMATIC ET 200SP
Supply voltage	24 V DC
Rated value (DC)	24 V
Power loss, typ.	1.5 W
Interference voltage suppression for interference frequency f1 in Hz	50/60 Hz
Diagnostics function	Yes
Galvanic isolation	Yes
Potential separation channels	Yes
Potential separation between the channels and backplane bus	Yes
Module type	AI
Safety integrity level	SIL 3
Connection method	Push-in terminals
Operating voltage	24 V DC
Weight	200 g
Input current range	0(4)..20 mA
Product type designation	F-AI 4xI 0(4)..20mA 2-/4-wire HF
Analog value generation for the inputs	16 bits
Resolution	16 bit
Integration time/resolution per channel	Configurable