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
35
4.3.2.11
Diagnostics: Wire break
Function
Here you activate wire break detection for a configured measuring range of 4 to 20 mA.
With an assigned measuring range of 4 to 20 mA:
● With assigned wire break diagnostics and currents < 3.6 mA, a wire break is detected and
a diagnostic interrupt is triggered in the F-CPU.
● Without configured wire break and currents diagnostics < 0.4444 mA detects "underflow"
and triggers a diagnostic interrupt in the F-CPU.
With an assigned measuring range of 0 to 20 mA, the wire break diagnostics is permanently
set by default. With currents < 0.4442 mA, a wire break is detected and a diagnostic interrupt
is triggered in the F-CPU.
If you do not need a channel, deactivate the channel. Then, a wire break is not detected.
4.3.2.12
Smoothing
Using smoothing
Smoothing of analog values provides a stabilized analog signal for further processing.
Smoothed values are always used for discrepancy analysis.
WARNING
The smoothing takes place as a result of averaging over the selected number of most
recently converted analog values of a channel, e.g. 64.
The mean value generation causes a discrepancy to be delayed with a configured "1oo2
evaluation (max. SIL3/Cat.4/PLe)". You can find an example below.

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