B&R 8SCS005.0000-0
Model Series: X20 Bus System — Service & Diagnostic Tools
Product Overview:
The B&R 8SCS005.0000-0 is a Service Coupler for the B&R X20 distributed I/O system. It provides a dedicated interface for commissioning, diagnostics, parameterization, and firmware updates of all X20 modules without removing them from the bus. It connects between the X20 bus coupler and the first I/O module in the chain.
Detailed content
Technical Specifications:
| Parameter | Value |
|---|---|
| Interface | X20 bus connector (top and bottom) |
| Communication | X20 bus protocol (500 µs cycle time) |
| Connection to PC | USB 2.0 (Mini-B connector) |
| LED Indicators | Power, Bus activity, Error |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | -25 °C to +70 °C |
| Dimensions (W x H x D) | 25 mm x 90 mm x 74.5 mm |
| Weight | Approx. 80 g |
| Mounting | DIN rail TS 35 (EN 60715) |
| Certifications | CE, UL |
Functional Features:
- Online module replacement — swap modules while system is running
- Full diagnostic access to all connected X20 modules
- Firmware update capability for all X20 modules via B&R Automation Studio
- Parameter read/write without stopping the machine
- LED status monitoring for bus communication health
- Hot-swap support when used with compatible bus coupler
Applicable Industries:
All industries using B&R X20 systems — commissioning, maintenance, and troubleshooting.
Installation Requirements:
- Insert between bus coupler and first I/O module in the X20 chain
- Connect USB cable to PC running B&R Automation Studio
- Do not exceed 63 modules in total on the X20 bus segment
Product 9: 8V1320.00-2
Product Name: B&R X20 TB31 — Bus Terminal Module with LED Indicators
Model Series: X20 Bus System — Bus Termination
Product Overview:
The B&R 8V1320.00-2 is a bus terminal module for the B&R X20 distributed I/O system. It is installed at the last position of the X20 bus segment to provide proper electrical termination of the bus line, preventing signal reflections. It features integrated LED status indicators for visual bus health monitoring.
Technical Specifications:
| Parameter | Value |
|---|---|
| Function | Bus termination with LED status |
| Termination Resistance | 120 Ω (integrated) |
| LED Indicators | Power (green), Bus activity (yellow), Error (red) |
| Bus Cycle Time | 500 µs |
| Power Consumption from Bus | ≤ 0.5 W |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | -25 °C to +70 °C |
| Dimensions (W x H x D) | 25 mm x 90 mm x 74.5 mm |
| Weight | Approx. 70 g |
| Mounting | DIN rail TS 35 (EN 60715) |
| Certifications | CE, UL, cUL, ATEX (Zone 2) |
Functional Features:
- 120 Ω bus termination eliminates signal reflections on the X20 bus
- 3-color LED system for immediate visual diagnostics:
- Green: Power OK, bus active
- Yellow: Bus communication active
- Red: Bus error / communication failure
- Passive component — requires no configuration
- Mandatory at the last module position in every X20 segment
Applicable Industries:
All B&R X20 system installations across every automation sector.
Installation Requirements:
- Install at the physical end of the X20 bus (last module position)
- One terminal module per bus segment is required
- Connect to the bus before powering up the system












