The B&R X20BM11 bus module is the core base component of the X20 series 24VDC I/O module, playing a crucial role in bus communication transfer between modules and internal I/O power distribution. As the basic unit of the X20 automation system, this module adopts a standardized design and can be directly equipped with digital and analog I/O modules of the same series. It realizes data interaction with the PLC host through the backplane bus and stably supplies 24VDC working power to the expansion module at the same time. It is adapted to the harsh operating environment of industrial sites and is widely used in the construction of various small and medium-sized automatic control systems. It is an important supporting component for ensuring the stable operation of the X20 series I/O modules.
Technical specifications
Manufacturer: B&R
Product Numbers: X20BM11
Product Type: X20 Bus Module
Place of 0rigin: Austria
Bus module: Bus module, 24 VDC keyed, internal I/O supply continuous
Bus: 0.13 W
Nominal voltage: 24 VDC
Permissible contact load: 10 A
0 to 2000 m: No limitations
>2000 m: Reduction of ambient temperature by 0.5°C per 100 m
Degree of protection per EN 60529: IP20
Horizontal mounting orientation: -25 to 60°C
Vertical mounting orientation: -25 to 50°C
Storage: -40 to 85°C
Transport: -40 to 85°C
Operation: 5 to 95%, non-condensing
Storage: 5 to 95%, non-condensing
Transport: 5 to 95%, non-condensing
Functional features
- As the installation base for the X20 series I/O modules, it provides physical support and electrical connection interfaces for the expansion modules.
- Integrate the internal I/O power distribution function to stably supply the external input 24VDC power to each expansion I/O module.
- Equipped with a high-speed backplane bus, it realizes real-time data interaction between the extended I/O module and the PLC host, ensuring the timeliness and accuracy of signal transmission.
- It is equipped with anti-reverse connection and anti-overload design. When the power connection is incorrect or the load is abnormal, it can effectively protect the module and the back-end equipment from damage.
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