PLC I/O
PLC input / output
A controller interface point connecting field signals to an identified module channel.
Schematic
Symbols · LS FLOAT NO
Float level switch NO
A float-operated NO level switch changes contact state through a float mechanism at a documented fluid level.
Schematic · LS FLOAT NO
What it represents
A float-operated NO level switch changes contact state through a float mechanism at a documented fluid level. Schematics need the rising or falling level action as well as the contact reference state.
How to read it
- Check how the float orientation changes the operate point or contact action.
- The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation.
Information to show or reference
- Name monitored vessel
- State level and direction
- Reference float arrangement
A distinction that matters
A float switch is a discrete level device rather than a continuous level transmitter.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
AutoCAD Electrical: Level, flow, keyed and measurement switches
Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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