Product Details:

SIEMENS 16191-21 is an HFM marshalled termination assembly designed for Moore APACS+ and QUADLOG DCS systems, specially matched with HART Fieldbus Module for centralized signal marshalling and wiring transition between field HART instruments and the HFM I/O card. It integrates organized screw terminal blocks and internal signal routing traces, which neatly distributes multi-channel 4-20mA analog signals with HART digital superimposition, serving as the reliable wiring junction to simplify field cable termination, loop inspection and instrument commissioning work. The termination assembly adopts industrial-grade insulating base and anti-vibration terminal structure, with good contact stability and locking design to prevent loose wiring caused by long-term cabinet vibration. It carries built-in signal isolation and surge limiting layout to reduce crosstalk between adjacent HART channels and suppress transient voltage spikes transmitted from field instrument cables.

It is designed for standard cabinet mounting, easy installation and rearrangement during system modification, loop replacement and I/O module upgrade. Each terminal position has clear channel marking, helping maintenance technicians quickly trace signal lines and locate abnormal HART loops during troubleshooting. It supports seamless pairing with the HFM module and forms a complete HART analog signal acquisition solution for the QUADLOG rack. Every spare unit will pass continuity testing, wiring integrity inspection and compatibility verification before shipment to ensure stable matching with original HFM hardware. It is widely stocked as replacement spare parts and wiring accessories for legacy HART-enabled process control systems.

Industry Applications: Applied in petrochemical auxiliary skids, gas flow control systems, boiler closed-loop control rooms and water treatment facilities for conventional analog signal acquisition and valve regulating output.

Note: Confirm SAM combined I/O feature and hardware revision before ordering

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