Description

The Allen-Bradley 2080-RTD2​ is a 2-channel non-isolated Resistance Temperature Detector (RTD) input plug-in module designed exclusively for the Micro800® family of programmable logic controllers (Micro810, Micro820, Micro830, Micro850, and Micro870). It allows the Micro800 controller to directly read temperature from up to two standard platinum or copper RTD sensors without requiring an external analog input module or separate signal conditioner.

Application Scenarios

In a food processing plant in the Midwest United States, a maintenance supervisor was struggling with temperature drift on a retort sterilization line. The existing setup relied on a third-party temperature transmitter connected to a Micro850 controller via a 0–10V analog input, but the signal suffered from ground-loop interference and required quarterly recalibration. By swapping to the Allen-Bradley 2080-RTD2​ plug-in module, the team eliminated the external transmitter entirely—connecting Pt100 sensors directly to the controller’s expansion header. The result was a 40% reduction in wiring complexity, zero calibration drift over six months of operation, and a measurable improvement in batch temperature uniformity. The Allen-Bradley 2080-RTD2​ solved the pain point of unreliable analog signal conditioning in electrically noisy food-processing environments while reducing component count and panel space.

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