808-J4 Allen‑Bradley motherboard

Description

808-J4 Allen‑Bradley motherboard

Product Dimensions：

Product Detailed Description

The AB Mainboard, often referred to in industrial automation contexts as an Allen-Bradley (AB) Programmable Logic Controller (PLC) mainboard or processor module, is a core component designed for reliable control in automation systems. Manufactured by Rockwell Automation under the Allen-Bradley brand, it serves as the central processing unit (CPU) for PLC systems like the ControlLogix or CompactLogix series. This mainboard integrates high-speed processing, I/O handling, and communication capabilities to execute ladder logic, structured text, and other programming languages for industrial control tasks. It features modular design for scalability, robust environmental tolerance, and seamless integration with industrial networks. Typical models, such as the 1756-L7x series, support real-time data processing and redundancy for mission-critical applications.

Product Parameters

The following parameters are based on representative AB PLC mainboard models (e.g., ControlLogix 1756 series). Specific values may vary by exact model; consult the official datasheet for precision.

Product Advantages

• High Reliability and Redundancy: Supports hot-swappable modules and dual-redundancy configurations, minimizing downtime in 24/7 operations with MTBF exceeding 100,000 hours.
• Scalability and Flexibility: Modular architecture allows easy expansion from small machines to large enterprise systems, supporting up to 30 local I/O modules.
• Advanced Connectivity: Native support for industrial Ethernet protocols enables seamless integration with SCADA, MES, and IIoT systems, reducing wiring costs by up to 30%.
• User-Friendly Programming: Compatible with RSLogix/Studio 5000 software, offering intuitive diagnostics, simulation, and over-the-air updates for faster development cycles.
• Cost-Effective Performance: Balances high-speed execution (up to 20,000 instructions/ms) with energy efficiency, lowering total ownership costs compared to competitors.

Precautions (Notes)

• Installation: Ensure proper grounding and ESD protection during handling to prevent static damage. Mount in a NEMA-rated enclosure for dust/moisture protection.
• Power Supply: Use only certified 24 VDC sources; verify polarity to avoid reverse-voltage damage. Avoid exceeding rated current to prevent overheating.
• Environmental: Operate within specified temperature/humidity ranges (5–95% non-condensing). Avoid direct sunlight or corrosive environments without additional shielding.
• Maintenance: Regularly update firmware via official channels to patch security vulnerabilities. Do not hot-swap under power without redundancy enabled.
• Safety: Comply with local regulations (e.g., IEC 61131-2). Disconnect power before servicing, and use lockout/tagout procedures to prevent accidental energization.

Product Applications

AB Mainboards are versatile for industrial automation and are widely used in:

• Manufacturing: Assembly lines, robotic control, and CNC machines for precise motion and sequencing.
• Process Industries: Oil & gas, water treatment, and chemical plants for PID loop control and safety interlocks.
• Energy Sector: Power distribution, renewable energy inverters, and substation monitoring.
• Building Automation: HVAC systems, elevators, and access control for energy-efficient operations.
• Transportation: Conveyor systems, traffic signals, and rail signaling for real-time reliability.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Please make an inquiry for more models：