R. Velazquez-Gonzalez, T. Gómez-Lemus, J. Rodríguez-Reséndiz
{"title":"A pH process control embedded on a PLC using Fuzzy Logic","authors":"R. Velazquez-Gonzalez, T. Gómez-Lemus, J. Rodríguez-Reséndiz","doi":"10.1109/CONIIN.2017.7968179","DOIUrl":null,"url":null,"abstract":"The present work shows the design and implementation of a controller based on Fuzzy Logic for pH regulation using an S7-1200 Programmable Logic Controller (PLC) as a processing element. The inputs of the controller are the current error (desired pH - current pH) and the rate of change in error (current error - previous error). On the other hand, the output is given by the activation time of an on-off dosing pump, which was adjusted to a constant flow of 2.5 liters per hour. The controller calculates the time that the pumps must be on or off so that the process variable reaches the desired value. A Delta Human Machine Interface (HMI) are used to acquisition data and process parameters configuration.","PeriodicalId":131243,"journal":{"name":"2017 XIII International Engineering Congress (CONIIN)","volume":"124 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 XIII International Engineering Congress (CONIIN)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CONIIN.2017.7968179","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
Abstract
The present work shows the design and implementation of a controller based on Fuzzy Logic for pH regulation using an S7-1200 Programmable Logic Controller (PLC) as a processing element. The inputs of the controller are the current error (desired pH - current pH) and the rate of change in error (current error - previous error). On the other hand, the output is given by the activation time of an on-off dosing pump, which was adjusted to a constant flow of 2.5 liters per hour. The controller calculates the time that the pumps must be on or off so that the process variable reaches the desired value. A Delta Human Machine Interface (HMI) are used to acquisition data and process parameters configuration.
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