Purchase now: Weidmüller UR20-FBC-MOD-TCP-V2 Coupler
Purchase now: Atlantech Drives provides you the Weidmüller 2769020000 (Model: UR20-FBC-MOD-TCP-V2), the advanced **Fieldbus Coupler** for the **u-remote (UR20)** I/O system, specifically designed for **Modbus TCP** networks. This «V2» version brings enhanced performance and diagnostics. It acts as a Slave device, allowing a Modbus TCP Master (such as a SCADA system, a building management controller, or a PLC) to read and write to the connected u-remote digital and analog modules.
Technical Specifications and Webserver
The coupler features an integrated **2-port Ethernet Switch**, enabling daisy-chain topology without external hardware. It supports **10/100 Mbit/s** with auto-negotiation. A key feature is the integrated **Web Server**, which provides a user-friendly interface for configuration, forcing I/O (simulation), and detailed diagnostics of every module in the rack. The u-remote system is famous for its separation of power paths: one 10A path for inputs/system and a separate 10A path for outputs, allowing for independent emergency shutdown of actuators.
- Part Number: 2769020000.
- Model: UR20-FBC-MOD-TCP-V2.
- Protocol: Modbus TCP.
- System: u-remote (UR20).
- Max Modules: 64.
- Connection: 2 x RJ45 (Switched).
- Configuration: Webserver / Modbus Register Mapping.
- Power: 24 V DC (Dual Path 10A+10A).
- Dimensions: 52 mm width.
Expert Tips: Modbus Addressing
Modbus can be tricky with offsets. Expert Tip: The u-remote coupler maps the I/O data into Modbus Holding Registers (40xxx) and Input Registers (30xxx). The integrated Web Server generates a **dynamic Modbus Map** based on the modules you have plugged in. Always check this map in the browser (via the USB service port or Ethernet) to get the exact register addresses. Remember that some Masters use «0-based» addressing while u-remote might document «1-based», so an offset of +/- 1 is a common troubleshooting step.
Frequently Asked Questions (FAQs)
Q: How many TCP connections does it support?
A: The V2 coupler typically supports multiple simultaneous Modbus TCP connections, allowing a SCADA system and a local HMI to poll data at the same time.
Q: Can I use it with u-mation controllers?
A: Yes, or with any third-party controller that supports open Modbus TCP (Schneider, Siemens, Rockwell, etc.).
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