The Allen-Bradley 1794-OE8H is an 8-channel HART analog output module for the FLEX I/O system, designed for process control applications requiring direct communication with smart field devices. It provides 0–20 mA or 4–20 mA current outputs on each channel while simultaneously enabling HART digital communication over the same two wires, eliminating the need for external HART multiplexers or additional wiring.
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