Siemens SIMATIC PCS 7 Configuration page 13

1 Introduction
1.3 Hardware components
Product features
MTA are characterized by the following properties:
Redundant 24 V DC power supply with LED display
Screw-type terminals for direct (1:1) connection of field devices, sensors and
actuators
Fuse with LED indicator for each I/O channel
Pre-assembled cables to connect the MTA with the I/O module
with SUB D connector, 50/25-pin, plug socket version, for MTA
with Siemens front connector, 40/20-pin, plug socket version, for the ET 200M
module
On-board simulation capabilities for IBS purposes (wire break, to switch
ON/OFF a channel)
Tested as a SIMATIC PCS 7 system component and approved with
appropriate approvals (FM, UL, CE, ATEX, TÜV (German Technical
Inspectorate))
Advantages
MTA allow quick and simple wiring to field devices
Direct connection of field devices
SUB D connector to connect pre-assembled cables
A backup for each channel with LED display
Redundant 24 V DC power supply
On-board simulation capabilities, e.g. for commissioning purposes
Support for redundant ET 200M modules
Channel-granular protection
Cables must be accessible
Internal potential distribution
Easy maintenance with plug connections
Faster commissioning
Connection possibility for HART modem to the MTA
Note For more detailed information, refer to the "ET 200M Marshalled Termination
Assemblies Remote I/O Modules".
Configuration of Redundant I/O Modules
Entry-ID: 28430682, V2.0, 03/2015
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