PLC & Programming

RTU

Remote Terminal Unit

Definition

A controller at a remote site, optimized for low power, a wide temperature range, and reporting over a constrained link such as radio or cellular.

In water and wastewater, most lift station RTUs are simply small PLCs in a remote panel. What makes them an RTU is the role and the communication constraints, not a different kind of hardware.

Duplex Lift Station ControlsThe two-pump station that makes up most of a collection system: what is in the panel, how the sequence works, what is monitored, and where these stations actually fail.

RTU

Definition

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