Automation & Control
Analogue input
A controller input that measures a continuously varying electrical signal.
IN ONE SENTENCE
It converts signals such as 4-20 mA or 0-10 V into a value the control program can use.
In normal English
Input range, resolution, isolation and wiring must match the transmitter and required accuracy.
Why would I use it?
Use it for pressure, level, temperature and other continuously measured quantities.
THINK OF IT LIKE…
The PLC's measuring ear for analogue sensor signals.
Related terms
4-20 mA, 0-10 V, ADC
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