Siemens 6ES7650-1AA61-2XX0 is a SIMATIC PCS 7 marshalled termination assembly for the redundant connection of an eight-channel ET 200M AI HART input module. It provides eight 20 mA analog input paths, two protected 24 V DC power feeds, integrated fuse monitoring and status indication for dependable process-signal termination. The assembly accepts 0–20 mA signals without HART and 4–20 mA signals with HART communication, enabling intelligent transmitter diagnostics in redundant process-control architectures. Siemens 6ES7650-1AA61-2XX0 is intended for cabinet wiring, maintenance replacement and lifecycle continuity in compatible PCS 7 and ET 200M installations.

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