# PLC temperature input

Canonical URL: https://eloragrid.ai/symbols/plc-temperature-input
Publisher: Elora Grid
Updated: 2026-10-13
Lookup label: TI
Drawing use: Schematic
Reference families: Manufacturer

A PLC temperature input connects a documented RTD, thermocouple or compatible sensor through the selected module.

## What it represents

A PLC temperature input connects a documented RTD, thermocouple or compatible sensor through the selected module. Sensor type and conductor count determine its wiring and configuration.

## How to read it

- Preserve thermocouple polarity or RTD lead arrangement in the schematic.
- 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

- State sensor type
- Show conductor/polarity arrangement
- Reference channel scaling

## Important distinction

A dedicated temperature input is different from an analog input receiving a conditioned transmitter signal.

## Facts

- Drawing role: Controller interface
- Representation scope: Functional concept; not an official standard graphic or a product footprint
- Identifier status: 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.

## Public references

- [Modicon TM3 analog I/O hardware guide](https://www.se.com/us/en/download/document/EIO0000003131/) — Schneider Electric. Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.