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dc.rights.licenseAll rights reserveden_US
dc.contributor.advisorNieves Castro, Rafael A.
dc.contributor.authorFernández Burgos, David A.
dc.date.accessioned2021-03-18T15:15:42Z
dc.date.available2021-03-18T15:15:42Z
dc.date.issued2020
dc.identifier.citationFernández Burgos, D. A. (2020). Plc modification for fill and close stopping sequence improvement [Unpublished manuscript]. Graduate School, Polytechnic University of Puerto Rico.en_US
dc.identifier.urihttp://hdl.handle.net/20.500.12475/1091
dc.descriptionDesign Project Article for the Graduate Programs at Polytechnic University of Puerto Ricoen_US
dc.description.abstractFrom November 2020 to January 2021, an analysis was made looking for the best way to increase the yield of the machines in charge of the dry process when making a contact lens. In this analysis, it was discovered that there was overwhelming evidence that the biggest offender was curing losses. Curing losses are defined as all molds out of the curing ovens divided by the amount picked up by the CUA (Control Unit Acquisition). An analysis of the PLC code that corresponded to the affected areas determined that best course of action to save the greatest number of molds possible and reduce or possibly eliminate curing losses. After implementation of only a plc code modification an expected improvement on the curing losses should be between 1-2%. Key terms ⎯ contact lenses, fill & close, PLC, SCADAen_US
dc.language.isoen_USen_US
dc.publisherPolytechnic University of Puerto Ricoen_US
dc.relation.ispartofManufacturing Engineering;
dc.relation.ispartofseriesWinter-2020;
dc.relation.haspartSan Juanen_US
dc.subject.lcshProgrammable logic devicesen_US
dc.subject.lcshProgrammable controllersen_US
dc.subject.lcshPolytechnic University of Puerto Rico--Graduate students--Research
dc.subject.lcshPolytechnic University of Puerto Rico--Graduate students--Posters
dc.titlePlc Modification for Fill and Close Stopping Sequence Improvementen_US
dc.typeArticleen_US
dc.rights.holderPolytechnic University of Puerto Rico, Graduate Schoolen_US


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