PLC I/O
PLC input / output
A controller interface point connecting field signals to an identified module channel.
Schematic
Symbols · LS FLOAT NC
Float level switch NC
A float-operated NC level switch opens when its documented level condition actuates the mechanism.
Schematic · LS FLOAT NC
What it represents
A float-operated NC level switch opens when its documented level condition actuates the mechanism. Reference state and level direction must be shown for alarm or pump-control interpretation.
How to read it
- Evaluate both low-level and high-level conditions from the switch schedule.
- 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
- Label vessel and location
- Show actuation direction
- Identify reset level
A distinction that matters
NC does not necessarily mean low-level trip; the selected mechanism defines the process action.
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.
Explore related references
Put the reference into a drawing workflow.
Elora Grid helps electrical teams work with drawings, specifications and equipment information. Explore the drafting workflow or join the early-access waitlist.