Input Sharing; Description; Purpose - Siemens ET 200M Manual

6-Channel F Analog Input HART MTA
11.11

Input Sharing

11.11.1

Description

This section contains information and requirements for input sharing between a
Failsafe Analog Input module (6ES7 336-4GE00-0AB0) and a Standard Analog
Input Module (6ES7 331-7NF00-0AB0, E-Stand 5 and higher or 6ES7 331-7NF10-
0AB0, E-Stand 8 or higher), using the Siemens FAIH Marshalled Termination
Assembly (MTA) (6ES7650-1AH62-5XX0 and the Siemens AI Marshalled
Termination Assembly (MTA) (6ES7650-1AA52-2XX0).
11.11.2

Purpose

Input sharing allows the transmitter signal to be distributed to both the Fail-Safe
Analog Input Module and the Standard Analog Input Module. Both systems will
then receive the same input data.
Figure 11–6 FAIH SAI Input Sharing
+
CURRENT
SOURCE
-
150
MTA - FAIH
6.2 V
5.6 V
Marshalled Termination Assemblies for ET200M Remote I/O Modules
MTA – AI8
AI8 - MODULE
+
U
CH IN / U
I
250 Ohm
-
4
2
FAIH MODULE
A5E00482820-12
150 Ohm