Original Industrial Spare Part

Allen-Bradley 1785-L20B PLC-5/20 Processor | 16K Memory Controller

Name: Allen-Bradley 1785-L20B PLC-5/20 Processor - 16K Memory Industrial Controller
Brand: Allen-Bradley (Rockwell)
SKU: 1785-L20B
Price: 715.00 CNY
Availability: InStock

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SKU: 1785-L20B PLC & Industrial Automation Modules Allen-Bradley (Rockwell)

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Original Allen-Bradley (Rockwell) 1785-L20B - Industrial Spare Parts

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SKU1785-L20B
CategoryPLC & Industrial Automation Modules
BrandAllen-Bradley (Rockwell)
SupportAvailability, lead time, condition, and shipping coordination

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ControlLogix 1756 PLC-5 SLC 500

Allen-Bradley 1785-L20B PLC-5/20 Programmable Logic Controller

The Allen-Bradley 1785-L20B is a high-performance PLC-5/20 processor module engineered for demanding industrial automation applications. This controller delivers reliable, deterministic control for manufacturing lines, process industries, and critical infrastructure systems.

Technical Specifications

Memory Capacity: 16K words user memory
Processor Family: PLC-5/20 Series
Scan Time: Fast execution for time-critical operations
I/O Capacity: Supports extensive local and remote I/O configurations
Communication: Compatible with DH+, Remote I/O, and ControlNet networks
Programming: RSLogix 5 software environment
Operating Temperature: 0 °C to 60 °C (32 °F to 140 °F)
Power Requirements: 5V DC backplane power

Application Scenarios

This PLC processor excels in diverse industrial environments including automotive assembly lines, food & beverage processing, water treatment facilities, packaging machinery, material handling systems, and power generation plants. Its proven architecture ensures consistent performance in mission-critical applications where downtime is not an option.

System Integration Solutions

The 1785-L20B seamlessly integrates with Allen-Bradley’s comprehensive automation ecosystem. Deploy it alongside I/O modules, HMI panels, variable frequency drives, and safety relays to build complete control solutions. The processor supports ladder logic, structured text, and function block programming for flexible application development.

Common Questions

Q: Is this compatible with newer CompactLogix systems?
A: While PLC-5 uses different architecture than CompactLogix, data can be shared via Ethernet/IP or ControlNet networks using appropriate gateway modules.

Q: What programming software is required?
A: RSLogix 5 or RSLogix 5000 with PLC-5 support is needed for programming and configuration.

Q: Can I expand the memory?
A: The 1785-L20B has fixed 16K memory. For larger programs, consider the 1785-L40B or 1785-L80B models.

Q: Does it support redundancy?
A: Standard PLC-5/20 does not include built-in redundancy. For redundant systems, explore ControlLogix platforms.

Warranty & Support

Every unit includes a comprehensive 12-month warranty covering manufacturing defects and operational failures. Our technical support team provides assistance with installation, programming, and troubleshooting to ensure your automation project succeeds.