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Conclusive trending with OPP.

increases the performance of the installed systems and devices. OPP is not only a software product, but comes with a service contract, offering on-site, as well as remote support by a regional specialist. Support is provided on multiple levels by using a collaborative network of process control experts, electrical and electronics engineers, computer science experts, as well as engineers specialising in chemistry, mechatronics and mechanics.

Why OPP?

Mill operations are very complex – overall control is maintained by the plant control system, but operators interact with the system and variations in the raw material quality and environmental factors can slowly yet steadily push plant performance off track. To identify root causes in such a complex system, it is necessary to analyse both structured data from the control system and unstructured data from user interference and

uncover correlations. Once the correlations are identified, control models can be derived and applied to stabilise or increase throughput and save resources. Developed side by side with mill staff, the OPP concept is based on analysing a large volume of production data via sensors and distributed

control systems in a mill – data collection varies between 5,000 and 125,000 or more real-time process variables. This data is then statistically analysed by the OPP software to detect abnormalities or opportunities for improvement. By doing so, incidents such as sheet breaks can be prevented by

soft online/web break sensors or consumption of energy or chemicals reduced. This helps the customer to improve plant performance and lower costs.

OPP for pulp and paper Customers are benefitting from the improvements OPP

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Advice on the use of OPP tools is offered by Gerhard Schiefer, Head of Electrical and Automation Department at Andritz (

Autumn 2016 9 9

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