The Allen-Bradley 1785-V40L is a PLC-5/V40L VME Controller, designed for high-performance industrial automation and process control applications. This PLC-5 processor integrates into VMEbus-based control systems, providing advanced logic execution, real-time data processing, and reliable I/O communication for distributed industrial environments.
Technical Specifications
- Manufacturer: Allen-Bradley (Rockwell Automation)
- Model: 1785-V40L
- Controller Type: PLC-5/V40L VME Processor
- Memory Capacity: 48K Words SRAM (Battery-Backed)
- Communication Ports:
- 1 DH+ (Data Highway Plus) Port
- 1 Local I/O Port
- I/O Capacity:
- 512 Digital Inputs and 512 Digital Outputs
- 128K Total I/O (scalable with remote chassis expansion)
- Programming Software: RSLogix 5
- Communication Protocols:
- EtherNet/IP (via bridge modules)
- ControlNet and DeviceNet compatibility
- Data Highway Plus (DH+) for peer-to-peer networking
- Backplane Current Load: 1.2A at 5V DC
- Mounting Type: VMEbus rack-mounted
- Operating Temperature Range: 0°C to 60°C (32°F to 140°F)
- Certifications: UL, CE, CSA approved for industrial automation applications
Key Features
- 48K Word SRAM memory for program storage and execution
- Designed for VMEbus systems for high-speed control applications
- Supports large-scale I/O expansion for complex automation needs
- Data Highway Plus (DH+) port for networking multiple PLCs
- Local I/O port for direct control of Allen-Bradley 1771 I/O modules
- Reliable and scalable for industrial process control applications
Compatible Allen-Bradley Components
- Allen-Bradley 1771 I/O Modules (Digital and Analog)
- Allen-Bradley 1785 Series PLC-5 Processors
- Allen-Bradley 1756 Ethernet/IP Bridges for network expansion
- RSLogix 5 programming software for configuration and diagnostics
Industry Applications
- Automated manufacturing and production lines
- Power generation and energy distribution systems
- Oil and gas refinery process control
- Material handling and conveyor automation
- Water and wastewater treatment facilities
Installation & Operational Notes
- Ensure proper mounting in a VMEbus rack for optimal performance
- Verify Data Highway Plus (DH+) and Local I/O connections before deployment
- Use RSLogix 5 software for programming and system diagnostics
- Regularly check battery backup for memory retention reliability
- Follow Allen-Bradley’s installation guidelines to ensure long-term operation
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