The B883-201 resistance temperature detector (RTD) module is a smart I/O module that multiplexes up to eight two- or three-wire RTDs into three consecutive input registers of a control system.

Each B883-201 module provides linearization for any mix of 8 RTDs. Also built-in are self-calibration, internal diagnostics, and 800-series bus diagnostics.

American standard platinum, European standard platinum per DIN, or linear resistance input can be selected by the user under program control.

When an RTD is selected, the PLC can access each individual temperature reading in Centigrade, Fahrenheit or in compensated millivolts. Each time the PLC scans the B883-201 module, it receives the specified temperature or millivolt reading along with open-circuit and module health data.

Each B883-201 uses three consecutive input registers and three output registers. These registers are assigned to the same slot within the channel.