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
- Lifecycle Status: Discontinued
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
Request a Quote:
For pricing and availability, please Contact Us or call 1-800-755-2883.
Disclaimer: TCI Supply is not an authorized distributor of Allen Bradley products.
Frequently Asked Questions
What is the memory capacity of the 1785-V40L?
The 1785-V40L features 48K Words of battery-backed SRAM for program storage and execution.
What communication protocols are supported?
The controller supports EtherNet/IP (via bridge modules), ControlNet, DeviceNet, and Data Highway Plus (DH+) for peer-to-peer networking.
Is the 1785-V40L still in production?
No, the 1785-V40L has been discontinued by the manufacturer. However, it is available through independent suppliers like TCI Supply.
What is the operating temperature range?
The operating temperature range is 0°C to 60°C (32°F to 140°F).
What mounting type does the 1785-V40L use?
The 1785-V40L is designed for VMEbus rack-mounted installations.