Product Details:

SIEMENS 350LBNN is a high-precision single-loop process controller for industrial distributed control systems, designed to execute independent PID closed-loop regulation for field process variables such as temperature, pressure, flow and liquid level. It adopts a sturdy metal casing and high-stability internal control circuit design, equipped with built-in EMC shielding, surge suppression and self-diagnosis functions, which can continuously monitor internal operating status and alarm for abnormal hardware conditions. The controller supports receiving standard analog signals from field transmitters and outputting regulating signals to drive control valves, providing stable and reliable standalone loop control even when communication with the main control rack is interrupted.

It supports flexible parameter configuration via local operation panel or upper computer engineering software, users can adjust PID parameters, alarm thresholds and signal range settings according to different process requirements. The unit has excellent long-term stability with low thermal drift and high repeatability, and can withstand vibration, humidity and electromagnetic interference in heavy industrial sites. It adopts standard rack mounting structure for easy installation, inspection and replacement during routine maintenance and equipment upgrade. Every spare unit will pass full function testing, signal calibration and compatibility inspection before shipment to ensure stable performance and good matching with the original control system. It is widely stocked as replacement spare parts for old process automation 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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