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URB-SER Unitronics Modbus RTU Network Adapter
Unitronics URB-SER Modbus RTU Remote I/O Adapter for distributed industrial automation systems, supporting up to 63 URB Remote I/O modules via RS485 serial communication.
£203.80
Why Choose the Unitronics URB-SER Modbus RTU Remote I/O Adapter?
The Unitronics URB-SER is a robust Modbus RTU Remote I/O Adapter designed to extend the capabilities of UniStream automation systems through reliable RS485 serial communication. As part of the advanced Unitronics URB Remote I/O platform, the URB-SER enables distributed I/O architectures that reduce wiring complexity, lower installation costs and provide flexible machine and process automation solutions.
Designed for industrial environments where Ethernet infrastructure may be unavailable, impractical or unnecessary, the URB-SER allows UniStream controllers to communicate with remote I/O modules over long-distance RS485 networks using the proven Modbus RTU protocol. This makes it ideal for industrial facilities, water treatment plants, OEM machinery and remote control applications.
Supporting up to 63 URB Remote I/O modules, the URB-SER provides a highly scalable distributed I/O solution while maintaining reliable communication over extended distances. Its compact DIN rail-mounted design ensures straightforward installation within industrial control panels and automation systems.
Key Advantages
- Reliable Modbus RTU communication over RS485.
- Supports up to 63 URB Remote I/O modules.
- Ideal for long-distance industrial communication.
- Reduces control panel wiring and installation costs.
- Suitable for environments where Ethernet is unavailable.
- Supports distributed automation architectures.
- DIN rail mounting for easy installation.
- Industrial-grade design for demanding applications.
Key Features
- Unitronics URB Remote I/O platform.
- Modbus RTU Remote I/O Adapter.
- Supports up to 63 connected URB I/O modules.
- RS485 serial communication interface.
- Configurable baud rates from 1,200 to 115,200 bps.
- Modbus RTU protocol support.
- Status LEDs for module, transmit and receive diagnostics.
- Watchdog timer and auto-recovery functionality.
- DIN rail mounting design.
- Compatible with UniStream controllers.
- Supports distributed control architectures.
Reliable Long-Distance Remote I/O Communication
The Unitronics URB-SER is designed for applications where remote I/O modules must be installed far from the main controller. Using RS485 communication and the Modbus RTU protocol, the adapter provides dependable communication over long cable distances while maintaining strong noise immunity in industrial environments.
By positioning I/O modules closer to field devices, engineers can significantly reduce wiring requirements and simplify machine installation. The ability to support up to 63 modules makes the URB-SER suitable for both small and large distributed automation systems.
Typical Applications
- Industrial automation systems.
- Water and wastewater treatment facilities.
- Machine building and OEM equipment.
- Process control installations.
- Material handling and conveyor systems.
- Remote sensor and actuator networks.
- Industrial facilities with RS485 infrastructure.
- Legacy automation system upgrades.
Technical Specifications
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| Supported Protocols | Modbus RTU | |
|---|---|---|
| Product Series | UniStream Remote I/O (Uni-I/O) | |
| Device Type | Communication / Function Module | |
| Communication | Modbus RTU | |
| IP Rating | IP20 | |
| Series | URB Remote I/O | |
| Product type | Modbus RTU Remote I/O Adapter | |
| Communication protocol | Modbus RTU | |
| Communication interface | RS485 (2-wire) | |
| Maximum supported I/O modules | 63 | |
| Baud rate | 1,200 to 115,200 bps | |
| Network topology | RS485 serial bus | |
| Status indication | Module, TX and RX LEDs | |
| Watchdog support | Yes | |
| Configuration | DIP switches and UniLogic software | |
| Mounting type | DIN rail mounting | |
| Protection rating | IP20 | |
| Application | Distributed Remote I/O systems | |
| Compatible platform | Unitronics UniStream |
Frequently Asked Questions
What is the Unitronics URB-SER used for?
The URB-SER is used to connect UniStream Remote I/O modules to a controller via RS485 serial communication using the Modbus RTU protocol.
How many remote I/O modules can the URB-SER support?
The adapter supports up to 63 URB Remote I/O modules depending on the application configuration.
Which communication protocol does the adapter use?
The URB-SER uses the industrial Modbus RTU protocol over an RS485 serial communication network.
What are the advantages of RS485 communication?
RS485 offers long communication distances, excellent noise immunity and lower installation costs compared with Ethernet in many industrial environments.
Is the URB-SER compatible with UniStream controllers?
Yes. The adapter is designed for use with Unitronics UniStream controllers that support Modbus RTU Master communication.
Trusted by Industrial Automation Engineers
Unitronics URB Remote I/O solutions are widely used throughout industrial automation applications, providing scalable distributed I/O architectures, dependable communications and flexible expansion capabilities for machine builders and control engineers.
