TXM1.8RB SIEMENS Programmable controller

Description

TXM1.8RB SIEMENS Programmable controller

Product Dimensions：

Product Description

The TXM1.8RB provides 8 independent digital outputs. The “RB” stands for Relay Bistable, meaning the relays only require power to change state (from ON to OFF or vice versa) and do not require constant current to remain in a specific position. This “latching” design makes it exceptionally energy-efficient and ensures that relay states are maintained even during a total power failure of the island bus.

Product Parameters

Key Product Advantages

• Energy Efficiency: Because the relays are bistable, they consume virtually no power once they have switched, reducing the thermal load within the control cabinet.

• State Retention: In the event of a power outage, the relays remain in their last commanded position, providing predictable fail-safe behavior for specific applications.

• High Density: Offers 8 channels in a standard 64mm width, maximizing cabinet space efficiency.

• Silent Operation: Unlike standard relays that may hum or generate heat over long periods of being “ON,” these units remain cool and silent.

• Modular Integration: Seamlessly connects to the TX-I/O island bus, allowing for automatic addressing and hot-swappable maintenance.

Important Considerations (Precautions)

• Initial State: Upon first commissioning or after a hardware reset, the relay positions should be verified, as they may have shifted during transport or installation.

• Inductive Loads: When switching motors or large solenoids, always ensure the inductive current does not exceed 2A to prevent contact welding.

• No Manual Override: Unlike the “-M” series, the TXM1.8RB does not have manual switches on the front. Overrides must be performed via the software (BMS).

• Terminal Base Requirement: This module must be plugged into a compatible TX-I/O terminal base (e.g., TXS1.12F4) to function.

Applications

• Lighting Control: Ideally suited for switching large banks of lights where the relay stays “ON” for many hours, saving significant energy.

• Constant Load Management: Controlling equipment that rarely changes state but requires a high-reliability connection.

• Energy-Sensitive Projects: Projects aiming for green building certifications (like LEED or BREEAM) where reducing “parasitic” PLC power consumption is a priority.

• Remote Sites: Applications where power stability is an issue and the system needs to maintain its last state during a reboot.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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

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