📘 Allen-Bradley VME 1785-V40L PLC-5/V40L — Product Overview
The Allen-Bradley VME 1785-V40L (also referred to as 1785V40L) is a high-performance PLC-5/VME processor module designed for industrial automation systems. It provides robust logic processing capabilities, reliable communication interfaces, and seamless integration with other Allen-Bradley PLC components. The module is widely used in manufacturing, process control, and machinery automation applications where high-speed processing and reliable I/O management are essential. Its design emphasizes durability, precision, and ease of integration, making it suitable for complex industrial environments.
⚙️ Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1785-V40L / 1785V40L |
| Product Type | PLC Processor Module |
| PLC Family | PLC-5 / VME |
| Processor Type | 16-bit / 32-bit hybrid processor |
| Memory | 1 MB base RAM, expandable up to 4 MB |
| Program Storage | Flash and battery-backed RAM |
| Communication Ports | 2x Serial (RS-232/RS-485), 1x VMEbus interface |
| I/O Capacity | Supports up to 4096 discrete I/O points |
| Operating Voltage | 5 V DC internal logic |
| Power Consumption | 15 W typical |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -20°C to +70°C |
| Humidity | 5% – 95% non-condensing |
| Dimensions (W x H x D) | 254 mm × 178 mm × 38 mm |
| Weight | 0.9 kg |
| Mounting Type | Rack-mounted |
| LED Indicators | Power, Fault, Run, I/O status |
| Certifications | CE, UL, RoHS |
| Environmental Rating | IP20 (panel/in-rack installation) |
| Origin | USA |
🛠️ Key Features
- High-Speed Processing: Executes complex PLC logic efficiently for industrial automation applications.
- Flexible Communication: Dual serial ports and VMEbus interface support integration with multiple control networks.
- Expandable Memory: Base memory can be extended for larger programs or data storage needs.
- Reliable I/O Handling: Supports thousands of discrete I/O points, ensuring precise input/output management.
- Robust Design: Built to operate in harsh industrial conditions, with wide temperature and humidity tolerance.
- LED Diagnostics: Provides immediate visual feedback for status monitoring and troubleshooting.
- Rack Mount Compatible: Fits standard PLC-5 or VME racks, enabling easy installation and replacement.
🛠️ Installation and Maintenance Guidelines
Installation
- Ensure the rack or panel is powered down before installing the module.
- Insert the module into the designated VME/PLC-5 slot, ensuring secure alignment with connectors.
- Connect serial ports and I/O interface cables as per system design.
- Verify proper grounding of the module to prevent electrical interference.
- Power up the system and check LED indicators for operational status.
Maintenance
- Inspect the module periodically for signs of wear, loose connections, or corrosion.
- Clean exterior surfaces with a dry, lint-free cloth; avoid liquids or solvents.
- Test communication ports and I/O channels regularly to confirm correct operation.
- Update firmware as recommended by the manufacturer to maintain performance.
- Replace modules showing persistent errors or operational faults to avoid system downtime.
🔗 Additional Resources
🔄 Similar Products
| Model | Processor Type | Memory | Mounting Type |
|---|---|---|---|
| 1785-V20B | 16-bit processor | 512 KB RAM | Rack-mounted |
| 1785-V30C | 16/32-bit hybrid | 1 MB RAM | Rack-mounted |
| 1785-V40C | 32-bit processor | 2 MB RAM | Rack-mounted |
| 1785-V60L | 32-bit processor | 4 MB RAM | Rack-mounted |
| 1785-V80H | 32-bit processor | 8 MB RAM | Rack-mounted |
