PXM20 SIEMENS Network Operator Unit

Description

PXM20 SIEMENS Network Operator Unit

Product Dimensions：

Product Description (Detailed Explanation)

The PXM20 acts as a human-machine interface (HMI) for the Siemens Desigo building management system. It features a high-contrast, backlit graphical display and a user-friendly keypad. The unit is designed to be either mounted into the door of a control panel or used as a handheld tool for commissioning and maintenance.

It allows users to access all connected Desigo PX controllers within a network, providing a clear overview of system operations, alarm management, and setpoint adjustments without the need for a central PC workstation.

Product Parameters (Technical Specifications)

Product Advantages (Key Benefits)

• Full System Transparency: Access to all values, states, and operating parameters of any PX controller on the network.

• Efficient Alarm Management: Immediate visual and acoustic notification of faults, allowing operators to acknowledge and reset alarms directly from the unit.

• Intuitive Operation: Feature-based navigation with soft keys and a rotary/push knob for fast scrolling through large data point lists.

• Time Schedule Management: Simple modification of occupancy schedules and holiday calendars to optimize energy efficiency.

• Portable or Fixed: Its versatile design allows for permanent installation or mobile use for service technicians.

Precautions (Important Notes)

• Compatibility: Ensure the PXM20 firmware is compatible with the version of the Desigo PX controllers (e.g., PXC series) being used.

• Wiring Distance: When using the PPS2 interface, ensure the cable length does not exceed the maximum specified distance (typically 125 meters) to prevent communication drops.

• Cleaning: Use only a soft, damp cloth to clean the screen. Avoid harsh chemicals or abrasive materials that could scratch the LCD surface.

• Indoor Use Only: This device is rated for indoor industrial/commercial environments. Do not expose it to direct rain, extreme humidity, or corrosive gases.

Product Applications (Typical Use Cases)

• Plant Rooms: Mounted on the front of control cabinets for local monitoring of boilers, chillers, and pumps.

• Air Handling Units (AHU): Adjusting fan speeds, temperature setpoints, and monitoring filter status.

• Commissioning: Used by HVAC technicians to test inputs/outputs and verify sequence logic during the initial startup of a building.

• Energy Management: Reviewing trend data and adjusting time programs to ensure the building operates only when occupied.

• Service and Maintenance: Quickly identifying fault codes and system overrides during routine inspections.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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