Product Overview
The Allen-Bradley 1771-HODS Converter Option ODS module is a key component of the PLC-5 series, engineered for the 123 Motion Control System. This module bridges the ODS terminal and handheld pendant to the motion controller, enabling flexible operator interface distances. With support for RS-232 and RS-422 communication, the 1771-HODS ensures reliable data transfer in demanding industrial environments.
Technical Specifications
| Specification |
Detail |
| Brand |
Allen-Bradley / Rockwell Automation |
| Series |
PLC 5 |
| Part Number |
1771-HODS |
| Termination Panels |
4 Available |
| Module Type |
Converter Option ODS |
| Compatibility |
123 Motion Control System |
| Communication |
RS-232, RS-422 |
| Longline Option |
1771-HLL |
| Mounting |
DIN Rail |
The 1771-HODS supports two communication interfaces: RS-232 for the handheld pendant and RS-422 for the ODS terminal. This dual-protocol design allows the handheld pendant to operate up to 8 meters (25 cable feet) from the motion controller, while the ODS terminal can be placed up to 393 meters (1200 cable feet) away. When paired with the 1771-HLL longline option, both devices can be extended to 393 meters, offering exceptional layout flexibility.
Applications & Use Cases
The 1771-HODS is ideal for applications requiring remote operator control and monitoring. In a typical motion control setup, the module connects the ODS terminal and handheld pendant to the IMC 123 controller, enabling operators to fine-tune machine parameters from a safe distance. This is particularly useful in large-scale manufacturing lines where the control cabinet is far from the machinery. The longline option further enhances this capability, allowing the pendant to be used up to 1200 feet away, which is perfect for overhead cranes or conveyor systems.
Installation & Setup
Mounting the 1771-HODS is straightforward: secure it on a DIN rail using the integrated mounting provisions. Ensure the module is properly grounded and that the communication cables are routed away from high-voltage lines to avoid interference. For the longline option, install the 1771-HLL module between the 1771-HODS and the motion controller, and verify that the RS-422 connection is terminated correctly. Always follow the manufacturer's wiring diagrams for the termination panels.
Maintenance & Reliability
Regularly inspect the 1771-HODS for signs of dust accumulation or loose connections. Because the module operates in harsh environments, periodic cleaning of the DIN rail and connectors can prevent intermittent faults. The robust design of the Allen-Bradley 1771-HODS ensures long service life, but proactive checks of the communication ports and cable integrity will minimize downtime.
Compatibility & Integration
The 1771-HODS is designed specifically for the PLC-5 series and the 123 Motion Control System. It works seamlessly with the 1771-HLL longline option and supports up to four termination panels: a Temposonic panel for linear displacement transducers, an Encoder panel for single-axis encoders with external power, and a Resolver panel for single or dual resolver configurations. This modular approach allows you to tailor the system to your exact motion control needs.
Selection Guide & Purchasing Advice
Before purchasing the 1771-HODS, verify that your system uses the 123 Motion Control System and that your communication requirements match RS-232/RS-422. Consider whether you need the longline option (1771-HLL) for extended distances. PLC Source PRO offers genuine Allen-Bradley modules with fast shipping and expert support, ensuring you get the right part for your application.