What Is The Et 200S Distributed I/O System? - Siemens Simatic ET 200S Operating Instructions Manual

Description

1.3 What is the ET 200S distributed I/O system?

1.3 What is the ET 200S distributed I/O system?
1.3
Definition
The ET 200S distributed I/O system is a discretely modular, highly flexible DP slave for
connection to process signals on a central controller or a field bus. ET 200S supports field
bus types PROFIBUS DP and PROFINET IO. ET 200S has protection class IP 20.
Applications
You can connect virtually any number of I/O modules in virtually any combination right next
to the interface module that transfers the data to the central controller. You can thus set the
focus of your configuration on local requirements.
Depending on the interface module, each ET 200S can consist of up to 63 modules - for
example, power modules, I/O modules, and motor starters.
The fact that motor starters can be integrated (switching and protecting any three-phase load
up to 7.5 kW) ensures that the ET 200S can be quickly adapted to suit virtually any process-
related use of your machine.
The fail-safe modules of the ET 200S ensure the fail-safe reading and output of data to
safety category 4 (EN 954-1)
Terminal modules and electronic modules
The ET 200S distributed I/O system is
• Connected to PROFIBUS DP by means of a cable connector for PROFIBUS DP at the
• Connected to PROFINET IO at the IM151-3PN interface module by a plug connector for
Every ET 200S peripheral system is
• A DP slave on the PROFIBUS DP or
• An IO device on the PROFINET IO.
1-4
IM151-1 or 1M151-1 COMPACT interface module and
PROFINET IO
Operating Instructions, 12/2005, A5E00515771-03
ET 200S