SIEMENS PXM20-E Operator Panel

Description

SIEMENS PXM20-E Operator Panel

Product Dimensions：

The Siemens PXM20-E is a high-performance network operator unit designed for the Desigo PX building automation and control system. It provides a localized interface for monitoring and operating building plants, such as HVAC systems, lighting, and energy management modules.

Product Detailed Description

The PXM20-E serves as a multi-functional operator station that allows users to access all connected Desigo PX controllers on a BACnet/IP network. Unlike the standard PXM20 (which typically uses proprietary or point-to-point connections), the -E version is Ethernet-based. It features a high-resolution backlit display and a simplified keypad to navigate complex plant structures, view alarms, and adjust setpoints.

Technical Parameters

Product Advantages

• Full System Transparency: Provides access to the entire BACnet network. An operator can view data from any controller connected to the same site without needing a PC.
• Alarm Management: Features an integrated alarm LED and buzzer. Users can view, acknowledge, and reset alarms directly from the unit.
• User-Friendly Navigation: Uses a consistent “Desigo” folder-style navigation, making it intuitive for facility managers to find specific sensors or actuators.
• Plug-and-Play (BACnet): As a native BACnet/IP device, it automatically discovers other devices on the network, reducing configuration time.
• Multilingual Support: Supports multiple languages, which can be toggled depending on the user’s preference.

Important Considerations & Precautions

• Network Security: Since this device operates on Ethernet/IP, ensure it is behind a secure firewall or within a dedicated Building Management System (BMS) VLAN to prevent unauthorized access.
• Firmware Version: Ensure the PXM20-E firmware is compatible with the version of the Desigo PX controllers (e.g., PXC…) installed in the building.
• Power Supply: Use a dedicated 24V supply. Inconsistent voltage or sharing power with heavy inductive loads (like large contactors) can cause the display to flicker or the unit to reboot.
• Cleaning: The front membrane is durable but should be cleaned with a damp cloth only. Avoid harsh chemical solvents that could degrade the plastic interface.

Product Applications

The PXM20-E is typically installed in mechanical rooms or central control offices:

• Plant Operation: Localized control of Air Handling Units (AHUs), Chillers, and Boiler plants.
• Commissioning Tool: Used by technicians during the startup phase to test I/O points and override setpoints without carrying a laptop.
• Backup Interface: Serves as a critical manual backup for monitoring building vitals if the central SCADA/BMS workstation is offline.
• Energy Management: Reviewing energy meters and adjusting occupancy schedules for various zones in a commercial building.

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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