Title: Allen-Bradley 1785-L20C15 PLC-5/20C Programmable Logic Controller - 16K Word CPU for Industrial Automation

Product Overview:
The Allen-Bradley 1785-L20C15 is a robust and reliable PLC-5/20C Programmable Logic Controller processor, designed as the central processing unit (CPU) for critical industrial automation systems. This powerful module provides 16K words of user memory, enabling complex control logic and data handling for a wide range of manufacturing and process control applications. As a core component of the venerable PLC-5 platform, the 1785-L20C15 offers proven performance, high-speed processing, and versatile communication capabilities, including Data Highway Plus (DH+) and RS-232 ports. Ideal for demanding industrial environments, this processor ensures precise, real-time control and seamless integration within existing or new automation architectures, making it a cornerstone for efficient and dependable operations. Its enduring design and functionality continue to support vital industrial processes globally, providing a dependable solution for complex control challenges.

Key Features & Benefits:

High-Performance PLC-5/20C Processor: Delivers robust and reliable control for complex industrial applications, ensuring stable and efficient operation in demanding environments.
Generous 16K Word User Memory: Provides ample space (16,384 words) for extensive control programs, data storage, and recipe management, supporting sophisticated automation tasks and future expansion.
Integrated Data Highway Plus (DH+) Communication: Facilitates high-speed peer-to-peer communication with other PLC-5 processors, HMI systems, and supervisory control devices, enhancing system connectivity and data exchange.
Versatile RS-232 Port: Allows for direct programming, diagnostic access, and ASCII device communication, offering flexibility for system setup, troubleshooting, and integration with serial devices.
Remote I/O (RIO) Scanner/Adapter Capability: Supports distributed I/O architectures, enabling the connection of a wide array of 1771 I/O modules across various locations, optimizing wiring, reducing installation costs, and enhancing system scalability.
Real-Time Control Execution: Ensures rapid response to process changes and precise control of machinery, critical for maintaining product quality, operational safety, and maximizing throughput.
Robust Industrial Design: Engineered to withstand harsh industrial environments, including wide temperature fluctuations, vibration, shock, and electrical noise, guaranteeing long-term reliability and minimal downtime.
Backward Compatibility: Seamlessly integrates into existing PLC-5 systems, simplifying upgrades and maintenance while preserving investment in established infrastructure and minimizing disruption.
Comprehensive Diagnostic Capabilities: Features built-in diagnostics for quick identification and resolution of system issues, minimizing downtime and improving overall operational efficiency.
Modular and Expandable: Part of the modular PLC-5 system, allowing for easy expansion of I/O and communication modules to meet evolving application requirements and future growth.

Applications:

Discrete Manufacturing: Control of high-speed assembly lines, robotic cells, and intricate material handling systems in automotive, electronics, and consumer goods production.
Process Control: Management of complex chemical processes, oil and gas exploration and refining operations, municipal water and wastewater treatment plants, and large-scale power generation facilities.
Packaging Machinery: Automation of high-volume filling, sealing, labeling, palletizing, and conveying equipment in food and beverage, pharmaceutical, and logistics industries.
Automotive Industry: Comprehensive control systems for body shops, paint shops, final assembly lines, and powertrain manufacturing.
Food and Beverage: Precision control of processing, mixing, bottling, packaging, and clean-in-place (CIP) systems to ensure product quality and safety.
Material Handling: Automated storage and retrieval systems (AS/RS), complex conveyor networks, sortation systems, and robotic picking applications in warehouses and distribution centers.
Energy Management: Monitoring and control of industrial power distribution, utility substations, and renewable energy integration systems.
Infrastructure: Control systems for large-scale building automation, tunnel ventilation, traffic management, and other critical public infrastructure projects.

Technical Specifications:

Part Number: 1785-L20C15
Alternate Part Number: 1785L20C15
Manufacturer: Allen-Bradley / Rockwell Automation
Series: PLC-5
Processor Type: PLC-5/20C
User Memory: 16K Words (16,384 words)
I/O Capacity: Up to 512 I/O points (local and remote)
Communication Ports: 1 x Data Highway Plus (DH+), 1 x RS-232, 1 x Remote I/O (Scanner/Adapter)
Backplane Current Draw: 2.7 A @ 5V DC (typical)
Operating Temperature: 0 to 60°C (32 to 140°F)
Storage Temperature: -40 to 85°C (-40 to 185°F)
Relative Humidity: 5 to 95% non-condensing
Mounting Type: 1771 I/O Chassis Slot
Programming Software: RSLogix 5, APS (Advanced Programming Software)
Weight: 2.0 kg (4.4 lbs)
Dimensions (HxWxD): Approximately 29.2 cm x 3.8 cm x 14.5 cm (11.5 in x 1.5 in x 5.7 in)