System overview Distributed Controllers

Save space with the smallest footprint

Distributed Controller Scribble

Thanks to their compact design, Distributed Controllers are particularly suitable for series machine manufacturing. They can be accommodated in small control boxes directly on the machine. In networked plants, connection to a production line's central control cabinet is realized via PROFINET.

The relocation of intelligence from the central control cabinet to Distributed Controllers on the individual stations entails positive effects on a plant's availability. Faults on one station can be rectified without leading to a standstill of the entire plant.

Distributed Controllers in the Siemens Controllers portfolio

Basic software Distributed Advanced


The Distributed Controllers Portfolio by Siemens


Open Controller



SIMATIC ET 200SP Open Controller

For SIMATIC ET 200SP, inter-face modules with integrated CPU and PROFINET connec-tion are available.
The functionality of the CPUs corresponds to that of the SIMATIC S7-1500.
Using the three integrated Ethernet ports, various connection systems can be realized. Connection to
a superior CPU is realized ana-logous to a standard interface module thanks to the iDevice functionality.
The fail-safe ET 200SP CPUs facilitate the processing of standard and safety program. They are certified for functional safety in accordance with
EN 61508 (2nd edition) and are suitable for safety-related appli-cations up to SIL 3 in accor-dance with IEC 62061 and PL e in accordance with ISO 13849.

The SIMATIC ET 200SP open controller as the first controller of this type combines the functions of a PC-based soft-ware controller with visualiza-tion, Windows applications and central I/Os in a compact de-vice.
The functionality of the
ET 200SP open controller corresponds to that of the
S7-1500. It is flexibly expan-dable by standard ET-200SP modules and is optimized for machines with distributed architecture.
There is a failsafe variant of the Open Controller as well.

SIMATIC ET 200pro is a very compact, rugged and powerful I/O system in degree of protec-tion IP65/67. CPUs based on S7-1500 and Interface modules with CPU functionality  based on S7-300 for connection to PROFINET or PROFIBUS are available both as standard and fail-safe version.
The portfolio is rounded off by
a comprehensive module spectrum. In addition to power modules and digital as well as analog signal modules, motor starters and an RFID module are available. Thanks to its rugged design, ET 200pro is also applicable with increased mechanical loads.

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