Allen‑Bradley 1785-L40C15 PLC-5 Processor Module

The Allen‑Bradley 1785-L40C15 is a high-performance CPU processor for the PLC-5 automation control system. Equipped with built-in ControlNet communication interface, it executes user control logic, processes I/O data exchange, and coordinates the operation of all modules within the PLC-5 chassis to realize continuous industrial automatic control.

This processor supports remote I/O communication, peer-to-peer messaging and network interconnection. It provides reliable operation for medium and large-scale automation projects, and is widely supplied as spare parts for maintenance and upgrading of legacy PLC-5 industrial control systems.

Main Specifications

• Brand: Allen‑Bradley (Rockwell Automation)
• Model: 1785-L40C15
• Product Type: PLC-5 Controller Processor Module
• Built-in Communication: ControlNet interface
• Program Memory: 40K words logic memory
• Support Remote I/O, Data Highway Plus and ControlNet networks
• Multiple built-in LED indicators for operation, fault and network status
• Operating Temperature Range: 0°C ~ +60°C
• Backplane Power Consumption: 1.1A @ 5VDC
• Installation: Standard single-slot PLC-5 chassis mounting

Core Functions

• Execute ladder logic control programs to complete automatic production process control
• Realize real-time data interaction with local and remote I/O modules via backplane and fieldbus
• Support ControlNet network to communicate with HMI, inverters and other PLC controllers
• Process alarm information, fault diagnosis and upload abnormal status to upper monitoring system
• Realize peer-to-peer data communication between multiple PLC-5 control stations
• Compatible with all standard PLC-5 series racks, power supplies and I/O modules
• Store production parameters, logic programs and support program backup and recovery
• LED status lights assist technicians in rapid fault location and routine inspection
• Industrial hardware design adapts to long-term continuous operation in factory environments
• Single-slot plug-in design facilitates quick replacement during equipment maintenance

Application Scenarios

• Automobile manufacturing workshop assembly and welding production lines
• Petrochemical industry continuous process automation control systems
• Water supply and sewage treatment plant centralized monitoring control racks
• Food, beverage and packaging large-scale production automation platforms
• Metallurgical, cement and building materials production process control equipment
• Port machinery, conveyor and bulk material handling control systems
• Power plant auxiliary equipment sequential control and monitoring cabinets
• Paper making industry continuous production line distributed control equipment
• Renovation and spare parts support of legacy PLC-5 control network systems
• PLC-5 controller spare parts maintenance and emergency replacement projects