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

Interrupts/diagnostic messages
6.4 Value status
Analog input module F-AI 4xI 0(4)..20mA 2-/4-wire HF (6ES7136-6AA00-0CA1)
Manual, 08/2018, A5E41448857-AB
63
6.4
Value status
Properties
In addition to the diagnostic messages and the status and fault display, the F-module
provides information about the validity of each analog input signal – the value status. The
value status is entered in the process image along with the input signal.
Value status for digital input and output modules
The value status is the binary additional information of an analog input signal. The value
status is entered in the process image of the inputs (PII) at the same time as the process
signal. It provides information about the validity of the analog input signal.
The value status is affected by all faults.
● 1
B
: A valid process value is output for the channel.
● 0
B
: A fail-safe value is output for the channel, or the channel is deactivated.
Note
You may only access the addresses occupied by user data and value status.
The other address areas occupied by the F
-modules are assigned for functions including
safety
-related communication between the F-modules and F-CPU in accordance with
PROFIsafe.
1oo2 evaluation of the sensors combines the two channels. With 1oo2 evaluation of the
sensors, you can only access the low order chan
nel in the safety program, e.g. channel 0.
Assignment of the inputs and value status in the PII
Each channel of the F-module is assigned a value status in the process image of the inputs.
You can find the assignment in section Address space (Page 38).
Reference
A detailed description of the evaluation and processing of the respective input signals can be
found in the SIMATIC Safety – Configuring and Programming
(http://support.automation.siemens.com/WW/view/en/54110126) manual.

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