Product Parameters
- Model Number: PXM20-E
- Series: Desigo PX
- Supply Voltage: 24V AC
- Communication: BACnet/IP (Ethernet interface)
- Display Type: Backlit monochrome LCD (High contrast)
- Resolution: 128 x 64 pixels
- Interface: Integrated keypad with 8-way navigation
- Power Consumption: 5.5 VA
- Protection Rating: IP20 (Front-mounted in panel)
Product Description
The Siemens PXM20-E is a high-performance operator unit designed for the local and remote management of Desigo PX automation stations. Unlike serial versions, the “E” suffix designates Ethernet connectivity, allowing for seamless integration into BACnet/IP networks. It provides a user-friendly interface for monitoring system values, adjusting setpoints, and acknowledging alarms across the building automation architecture. The unit is designed for panel mounting, featuring a durable keypad and a clear display that ensures operational data is accessible to facility managers and technicians directly at the cabinet level.
Application Fields
This operator unit is primarily utilized in large-scale building management systems (BMS), industrial HVAC control networks, and commercial automation projects. It is the standard interface for overseeing air handling units (AHUs), boiler rooms, and chiller plants. Its networking capabilities make it an essential tool for centralized plant control where multiple automation stations must be monitored from a single physical access point on the local network.
Product Specifications
- Weight: 0.38 kg
- Dimensions: 152 mm x 120 mm x 32 mm
- Origin: Switzerland / Germany
Operational Precautions
- Ensure the 24V AC power supply is stable and shared correctly with the automation station to avoid ground loops or communication errors.
- Use shielded Cat5e or Cat6 Ethernet cabling to maintain reliable BACnet/IP data transmission in high-interference environments.
- When mounting in a panel door, ensure the gasket is properly seated to prevent dust ingress into the sensitive internal electronics.
- Avoid using sharp or metallic objects to press the keys; use only fingers or a soft-tip stylus to prevent damage to the keypad membrane.
Recommended Similar Product Models
| Model Number | Series | Primary Function | Connection Type |
|---|---|---|---|
| PXM20 | Desigo PX | Operator Unit | PPS2 (Serial) |
| PXM10 | Desigo PX | Compact Operator Unit | PPS2 (Serial) |
| PXA40-W1 | Desigo PX | Web Interface Module | Ethernet/WLAN |
| PXC100-E.D | Desigo PX | Automation Station | BACnet/IP |
| PXM20-S | Desigo PX | Operator Unit | Standard Serial |
