TXM1.8U SIEMENS Controller module

Description

TXM1.8U SIEMENS Controller module

Product Dimensions：

Product Description

The TXM1.8U is a universal module that features 8 integrated I/O points. Each point is individually configurable, allowing it to function as either a digital input, analog input, or analog output. This versatility makes it a core component for interfacing with sensors, actuators, and various field devices within a building management system (BMS). It connects seamlessly to Desigo PX controllers via the TX-I/O bus.

Product Parameters

• Number of I/O Points: 8 Universal Inputs/Outputs.

• Supply Voltage: 24V DC (via the bus connection).

• Power Consumption: Typically 1.1W to 2.2W depending on the load.

• Input Types: * Passive: LG-Ni 1000, Pt 1000, NTC (10k or 20k), or Resistance (0…2500 Ω).

  • Active: 0…10V DC.

  • Digital: Potential-free contacts or counters (up to 10 Hz).

• Output Types: Analog 0…10V DC (max 10mA).

• Bus Connection: TX-I/O bus (Power and communication).

• Protection Class: IP20 (according to EN 60529).

• Mounting: Standard 35mm DIN rail.

Product Advantages

• Maximum Flexibility: Since every point can be configured for different signal types, it reduces the need for multiple specialized modules and simplifies spare parts inventory.

• Compact Design: The slim profile allows for high-density installation in control cabinets, saving valuable space.

• Ease of Installation: Features a modular design with a separate terminal base and electronic plug-in unit, allowing for pre-wiring and easier maintenance.

• Hot-Swappable: The electronic unit can be replaced without disconnecting the field wiring, minimizing system downtime.

• High Accuracy: Provides high-resolution signal processing for precise environmental control.

Important Considerations

• Grounding: Ensure that the “G0” (system neutral) is correctly connected to prevent measurement errors or electrical interference.

• Configuration: The specific function of each I/O point must be correctly defined in the software (Desigo toolset) before commissioning.

• Wiring Length: Observe maximum cable length limits for sensors and actuators to maintain signal integrity, especially for 0-10V signals.

• Environment: The module should be installed in a dry, dust-free environment (inside a control cabinet) to prevent oxidation or short circuits.

• Load Limits: When using the 0-10V outputs, ensure the total current draw does not exceed the module’s rated capacity.

Product Applications

The TXM1.8U is primarily used in HVAC and building automation systems, including:

• HVAC Control: Monitoring temperature sensors (Ni1000/Pt1000) and controlling valve or damper actuators (0-10V).

• Status Monitoring: Tracking the status of fans, pumps, and filters via digital inputs.

• Lighting Control: Interfacing with light sensors and dimmable ballast controllers.

• Energy Management: Connecting to pulse-output meters for water, gas, or electricity monitoring.

• General Process Control: Any scenario requiring a mix of analog and digital signals in a commercial building environment.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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

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