Description
Product Name : 1775-AD1 Allen Braley Output module
Product details:
The Allen-Bradley 1775-AD1 is a specialized module designed for use with the legacy PLC-3 programmable controller series. While it is an older product, it remains critical for industrial plants maintaining legacy automation infrastructure.
Below is the detailed documentation for the 1775-AD1 module.
Product Overview
The 1775-AD1 is an I/O Adapter Module (specifically a Remote I/O Adapter). Its primary function is to act as a communication bridge between the PLC-3 processor and remote I/O chassis. It enables the processor to control and monitor I/O devices located at significant distances from the main controller rack.
Technical Specifications
| Feature | Specification |
| Series | Allen-Bradley PLC-3 |
| Module Type | Remote I/O Adapter |
| Communication Protocol | Allen-Bradley Remote I/O (RIO) |
| Operating Voltage | Supplied by the chassis backplane (5V DC) |
| Backplane Current Load | Approximately 1.5 Amps |
| Mounting | Standard PLC-3 I/O Chassis |
| Indicators | LED Status indicators for “Active” and “Fault” |
| Max. Distance | Up to 10,000 feet (depending on baud rate and cable) |
Key Product Advantages
- Distributed Control: Allows for the decentralization of control systems, reducing the amount of wiring needed by placing I/O closer to the sensors and actuators.
- Legacy Reliability: Built with industrial-grade components designed to operate in harsh environments for decades.
- Seamless Integration: Designed specifically for the PLC-3 architecture, ensuring “plug-and-play” compatibility with existing 1775-series hardware.
- Robust Diagnostics: Built-in LED indicators provide immediate visual feedback regarding the communication status and module health.
Product Applications
The 1775-AD1 is primarily used in large-scale industrial operations that require high-performance legacy control:
- Automotive Assembly Lines: Managing distributed I/O across vast manufacturing floors.
- Food and Beverage Processing: Monitoring remote tank farms or packaging stations.
- Steel and Metal Mills: Controlling equipment in high-heat or high-interference areas distant from the main control room.
- Water Treatment Facilities: Managing remote pumping stations.
Important Considerations & Precautions
Note: As the PLC-3 and 1775-AD1 are categorized as “End of Life” (EOL) by Rockwell Automation, users should adhere to the following:
- Static Protection: Always use an anti-static wrist strap when handling the module. ESD (Electrostatic Discharge) can permanently damage the internal circuitry.
- Power Down: Never insert or remove the 1775-AD1 module while the chassis power is ON. Doing so can cause electrical arcing and damage the backplane.
- Baud Rate Matching: Ensure the DIP switches on the 1775-AD1 are set to match the baud rate of the PLC-3 scanner module.
- Termination: Properly terminate the Remote I/O link with the correct resistor (typically 82 or 150 ohms) to prevent signal reflection and data corruption.
- Lifecycle Planning: Because spare parts are increasingly difficult to source, it is highly recommended to keep a tested “cold spare” on-site or plan for a migration to modern platforms like ControlLogix.
Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!
We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation！
Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
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