Reading Field Device Diagnostics with an Automation Application
Lindfors, Tim (2024)
2024
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-202402082670
https://urn.fi/URN:NBN:fi:amk-202402082670
Tiivistelmä
The aim of the thesis was to create a function block diagram for UPM Biofuels plant that would read HART diagnostic data. The current number of HART diagnostic data was limited to five and the aim was to increase the amount of data to improve the predictive maintenance of the plants field devices.
Meetings with the client were set to discuss what field devices they would like to read and what diagnostic data they were interested in. The client provided manuals for the field devices and from there it was able to understand more comprehensively how to retrieve the HART diagnostic data. Valmet had set up a demo environment where two field devices where connected. The demo environment was a great advantage for testing because it eliminated the risk of any possible accidental plant failures while downloading or testing the function block diagram. Valmet R&D department provided a template function block diagram that was modified to fit the clients field devices.
Understanding the manuals was also a crucial to accomplish the task because different companies that use HART communication in their field devices will read HART signals different ways. With proper modification of the Valmet DNA function block diagram, it is possible to extend the amount of HART diagnostic data from the field devices.
Meetings with the client were set to discuss what field devices they would like to read and what diagnostic data they were interested in. The client provided manuals for the field devices and from there it was able to understand more comprehensively how to retrieve the HART diagnostic data. Valmet had set up a demo environment where two field devices where connected. The demo environment was a great advantage for testing because it eliminated the risk of any possible accidental plant failures while downloading or testing the function block diagram. Valmet R&D department provided a template function block diagram that was modified to fit the clients field devices.
Understanding the manuals was also a crucial to accomplish the task because different companies that use HART communication in their field devices will read HART signals different ways. With proper modification of the Valmet DNA function block diagram, it is possible to extend the amount of HART diagnostic data from the field devices.