PXC22-E.D SIEMENS Automation Station

Description

PXC22-E.D SIEMENS Automation Station

Product Dimensions：

Product Description (Detailed Explanation)

The PXC22-E.D is a compact, modular controller that communicates via the BACnet/IP protocol. It serves as a localized “brain” for mechanical systems, capable of executing complex control logic, trend logging, and alarm management.

This specific model features 22 integrated physical I/O points (fixed configuration), allowing it to directly interface with sensors, actuators, and switches without requiring additional expansion modules for standard small-to-medium applications. It is fully programmable using the Siemens CFC (Continuous Function Chart) language within the Desigo toolset.

Product Parameters (Technical Specifications)

Product Advantages (Key Benefits)

• Integrated I/O: The fixed 22-point configuration covers most small plant requirements (e.g., a standard Air Handling Unit), reducing hardware footprint and installation costs.

• Native BACnet/IP: Ensures seamless interoperability with third-party BTL-certified devices and easy integration into enterprise-level Building Management Systems (BMS).

• High Reliability: Features battery-free operation; programs and critical data are stored in permanent flash memory, ensuring the station recovers instantly after power outages.

• Peer-to-Peer Communication: Allows multiple PXC stations to share data directly over the network without needing a central server for logic execution.

• Scalable Engineering: Uses the same programming environment as larger Desigo PX controllers, allowing engineering logic to be copied and scaled across different site sizes.

Precautions (Important Notes)

• Firmware Compatibility: Ensure the firmware version of the PXC22-E.D is compatible with your version of Desigo Insight or Desigo CC management stations.

• Power Supply: Always use a dedicated class 2 transformer for 24V AC power. Do not share power with high-inductive loads (like large motors) to avoid electrical noise interference.

• Wiring Separation: Maintain physical separation between low-voltage sensor wires and high-voltage relay output wiring to prevent cross-talk.

• Addressing: The device requires a unique IP Address and a unique BACnet Device ID. Ensure these are documented in the network plan before commissioning.

• Battery Protection: While programs are in flash, the real-time clock (RTC) requires a super-capacitor or internal backup; if the unit is unpowered for several days, the time may need to be resynchronized.

Product Applications (Typical Use Cases)

• Air Handling Units (AHU): Controlling fan speeds, heating/cooling valves, and dampers based on CO2 or temperature sensors.

• Heating Substations: Managing heat exchangers, pump sequencing, and outdoor temperature compensation logic.

• Chilled Water Plants: Monitoring flow rates and controlling small-scale chiller staging or cooling tower fans.

• Lighting Control: Integrating digital inputs from motion sensors and outputs to lighting contactors for energy-efficient floor management.

• Room Automation: Controlling large open-plan office environments with multiple VAV (Variable Air Volume) boxes.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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

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