Retrofit control and HMI solution for biomass boiler

06 December 2016

Steam is an important component of meat processing and when Djurdjevic, a Serbian meat production company, wanted to automate the boiler it uses to produce steam the company needed to ensure that its control solution would be efficient and safe.

Djurdjevic runs a state-of-the-art facility which handles all aspects of meat processing and production. In common with all food facilities, quality and safety are two priorities. To ensure the quality of its products, the company is turning to automated solutions, which can offer it more precise and consistent results. 

One important piece of equipment for the factory is its biomass boiler as steam is used in a wide variety of meat processing and treatment applications. For control of the boiler the company has specified a Unitronics UniStream PLC with 10.4in touchscreen HMI. This unit regulates and monitors the production of steam, managing the boiler heat and maintaining its run time. The PLC relies on CANbus to communicate with remote I/O, including thermocouple inputs. The UniStream features many other communication options, meaning which allows it to interface easily with other devices, making monitoring a much easier task.  

Djurdjevic has also installed Unitronic Jazz controllers at several points for temperature monitoring.

Djurdjevic is pleased with its choice and the PLC worked without problem since it was installed. The application development with also speeded up thanks to Unitronics all-in-one programming software and a built-in image library which helped the company design its own easy to read, professional HMI screens.  Commenting on the project Dorde Kuzminac, factory chief financial officer at Djurdjevic, said: “For me, the most important factor is that I forgot that it is there – and it continues to quietly do its job, a very important job, controlling steam production for our factory.”

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