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Yara Brunsbuttel has installed the Himax safety controller from Hima Paul Hildebrandt, which is said to be ideal for use in emergency shutdown systems.

The Himax safety controller has been implemented as part of the emergency shutdown (ESD) system for the Brunsbuttel factory’s desulphurisation system.

The safety system consists of the central unit, 150 digital input channels, 20 analogue input and 50 digital output channels.

The redundant structure of the CPU and some of the I/Os ensure the highest possible availability for the plant.

Developed for mid-size and large applications, Himax enables uninterrupted system operation throughout a plant’s entire lifecycle.

It is based on Hima’s Nonstop XMR technology, which combines SIL 3 safety technology with a scalable, fault-tolerant architecture that eliminates spurious trips and allows unlimited changes, modifications, extensions, improvements and proof tests during system operation.

Applying Hima’s open integration concept, the Himax system was integrated into the Yokogawa control system.

The Modbus RTU protocol is used for communication with the control system.

Hima’s Silworx integration tool was used to engineer the Himax safety system.

Silworx ensures easy configuration, programming and diagnosis while complying with IEC-61131-3 requirements.

The intuitive user interface of Silworx can reduce user errors and accelerate the engineering process.

Hima Paul Hildebrandt

HIMA Paul Hildebrandt GmbH Co KG – safety-related automation solutions for process, machine and building safety HIMA solutions, whether for critical safety applications in the process industry, in machine or in building automation, protect people, assets and the environment in more than 80 countries around the globe.


What distinguishes HIMA solutions from the rest, is the combination of maximum safety and maximum availability. Only through permanent safety and uninterrupted operation are HIMA’s clients able to achieve their business goals.


HIMA solutions are based on practically-focused safety consulting, wide-ranging application experience, a comprehensive product range and the ability to successfully integrate safety solutions into almost any automation environment.


All HIMA systems and solutions comply with the latest international and local safety standards like IEC 61508 and IEC 61511, EN 954, EN ISO 13849 and are suitable for SIL 3 and even SIL 4, Cat. 4 and PL e applications.


Further Information about HIMA can be found online

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