Analog Devices 5B39-04 Programmable Logic Controller Module

The Analog Devices 5B39-04 is a single‑channel isolated current‑output signal conditioning module in the 5B series, designed to translate an analog input into a galvanically isolated 0–20 mA current signal for PLCs and data‑acquisition systems. It provides input‑to‑output isolation (up to 240 V rms at the screw terminals) to protect control hardware from voltage transients. The 5B39‑04 outputs 0–20 mA; when paired with a 500 Ω load across its output, it can generate a 0–10 V signal suitable for voltage‑input PLCs and measurement devices. All 5B39 modules are designed to be mix‑and‑match and hot‑swappable, enabling flexible, field‑proof configuration in industrial environments. Typical applications include industrial signal conditioning, signal isolation, and signal filtering for microcomputer‑based measurement systems, standard data acquisition setups, programmable controllers, analog recorders, and dedicated control systems.