{"schemaVersion":1,"slug":"plc-relay-output","name":"PLC relay output","kind":"symbol","abbreviation":"DO RELAY","aliases":[],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"A PLC relay output switches a documented contact path through the module's relay interface.","description":["A PLC relay output switches a documented contact path through the module's relay interface. The load supply and contact common may be separate from the PLC electronics supply."],"readingNotes":["Trace the load source through the output contact and common terminal.","The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation."],"drawingChecklist":["Identify output channel","Show load supply/common","Reference contact/load rating"],"distinction":"A relay output is a contact interface, not a transistor output with the same supply/common behaviour.","facts":[{"label":"Drawing role","value":"Controller interface"},{"label":"Representation scope","value":"Functional concept; not an official standard graphic or a product footprint"},{"label":"Identifier status","value":"The short label is a functional lookup label, not an assigned IEC or IEEE symbol number. Any separately listed Autodesk code is a verified vendor block name."}],"references":[{"sourceId":"pub-symbol-digital-io","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}],"related":["plc-io","terminal"],"artwork":"edu-plc-relay-output","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/plc-relay-output","illustration":{"url":"https://eloragrid.ai/library/illustrations/plc-relay-output.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pub-symbol-digital-io","title":"Modicon TM3 digital I/O hardware guide","publisher":"Schneider Electric","url":"https://www.se.com/ca/en/download/document/EIO0000003125/","type":"manufacturer","scope":"Public manufacturer explanation of the equipment function and selection context.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}]}