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B&R X20AT4222
1. Overview
The B&R X20AT4222 is a bus base module of B&R X20 compact PLC series, designed for connecting compact PLCs and power supply modules. As a core bearing component of the X20 system, it integrates bus communication and RS232 serial interface functions.
The X20 system adopts a modular design consisting of three basic elements: terminal blocks, electronic modules, and bus modules. This structural design enables a 50% higher component density compared with conventional systems, delivering superior space utilization for industrial control scenarios.
2. Main Technical Parameters
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Parameter Item
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Specification
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|---|---|
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Product Type
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X20 Compact PLC Bus Base
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|
Interface
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1 × RS232
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|
B&R ID
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0xEB0A
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|
Rated I/O Supply Voltage
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24 VDC
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Maximum Contact Load
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10 A
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Power Consumption
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0.55 W
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Electrical Isolation
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No isolation between bus and RS232 interface
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|
Ingress Protection Rating
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IP20
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Module Spacing
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37.5 mm
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Accessories
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Left and right end covers (supplied with the product)
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Environmental Conditions
- Operating Temperature: -25～60°C for horizontal installation; -25～50°C for vertical installation
- Storage/Transportation Temperature: -40～85°C
- Relative Humidity: 5%～95% (non-condensing)
- Installation Method: Supports horizontal and vertical installation with no height restriction
3. Product Features
- Built-in RS232 Communication Interface: Equipped with one integrated RS232 serial interface to realize stable data communication with upper computers and peripheral equipment, ensuring convenient system signal interaction.
- Wide Temperature and Humidity Adaptability: Features a wide operating temperature range, enabling stable operation in harsh and complex industrial environments.
- High-density Compact Structure: Adopts a 37.5mm module spacing design, which effectively optimizes the internal space utilization of control cabinets and reduces equipment footprint.
- Comprehensive International Certifications: Certified by CE, UKCA, UL, DNV, CCS, LR, KR, ABS, BV, EAC and other global authoritative institutions, supporting application in various industries worldwide.
- Plug-and-Play Design: Complete with matched left and right end covers, supporting fast on-site assembly and commissioning to improve installation efficiency.
- Complete Software Ecosystem Support: Compatible with Automation Studio (upgraded to V4.3 version). Official E-CAD, M-CAD files and technical documents are available for download to facilitate system design, debugging and maintenance.
4. Structure and Composition
The X20BB52 belongs to the bus module level of the X20 system. The entire X20 system adopts a three-layer hierarchical structure, including terminal blocks, electronic modules and bus modules.
As a core bus base component, the X20BB52 provides stable bus signal channels and mechanical support for the upper-layer electronic modules. Meanwhile, it integrates professional RS232 interface circuits to realize integrated communication and bearing functions.
5. Application Fields
Based on the general technical characteristics and application advantages of B&R X20 series products, the X20BB52 bus base is widely applied in the following industrial scenarios:
- Industrial Automatic Control: Serves as the backplane of compact PLC systems to build stable and efficient medium and small-scale industrial control systems.
- Machinery Manufacturing: Applied in cabinet integration of machine tools and automated production lines to support equipment automatic operation.
- Process Industry: Suitable for harsh working scenarios such as petrochemical, electric power and metallurgy industries with strict environmental requirements.
- Packaging Industry: Used for automatic control of various packaging machinery to ensure continuous and stable production.
- Automobile Manufacturing: Deployed as distributed control nodes in automobile production lines to realize precise workshop automation control.
6. Installation and Maintenance
6.1 Installation Guidelines
- Installation Direction: Both horizontal and vertical installation are supported. The maximum operating temperature is limited to 50°C for vertical installation.
- Installation Height: No height restriction for installation.
- Mechanical Size Requirement: The module spacing is 37.5mm, and corresponding reserved space on the DIN rail is required during installation.
- Accessory Installation: The matched left and right end covers must be installed correctly to protect internal bus connections and ensure system stability.
- Protection Specification: With IP20 protection grade, the module shall be installed in a clean control cabinet to avoid dust accumulation and liquid intrusion.
6.2 Wiring Precautions
- The I/O supply voltage is 24 VDC, and the actual contact load shall not exceed the rated 10 A to avoid equipment damage.
- There is no electrical isolation between the bus and the RS232 interface. Common ground processing and anti-interference measures shall be fully considered in system design to prevent signal interference.
6.3 Maintenance and Upgrade
- Hardware upgrade and firmware management can be realized via Automation Studio (V4.3 and above versions).
- Official E-CAD (electrical design drawings) and M-CAD (mechanical design drawings) files are provided to facilitate system integrated design, equipment transformation and daily maintenance.
- As a passive bus base module, it requires no special maintenance. Daily inspection focuses on checking connection firmness and cleaning contact surfaces to keep the module in good operating condition.
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