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- Allen Bradley
- 1771-OMD/B
- Digital AC Output Module
- USA
- 165 x 51 x 89 mm
- 0.748 kg
- Xiamen, China
- New & In Stock
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
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All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Allen-Bradley 1771-OMD/B Digital AC Output Module is designed to provide precise and reliable AC output control in industrial automation systems. It enables PLCs and DCS systems to manage AC-powered devices such as motors, solenoids, and relays, ensuring safe and efficient switching of AC loads.
Its modular design fits into the 1771 I/O chassis, supporting organized, scalable, and maintainable AC output systems.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Allen-Bradley |
| Model | 1771-OMD/B |
| Product Type | Digital AC Output Module |
| Function | Controls AC-powered devices via digital output signals |
| Compatible Systems | Allen-Bradley 1771 I/O chassis, PLCs, DCS, SCADA systems |
| Output Type | Digital AC output |
| Voltage/Current Range | Typically 120–240 VAC, configurable by system design |
| Mounting Type | Chassis-mounted (1771 I/O rack) |
| Dimensions | 165 × 51 × 89 mm |
| Weight | 0.748 kg |
| Operating Environment | Industrial automation, process control, manufacturing systems |
| Slots Required | Standard 1771 I/O module slot |
| Installation | Plug-in into 1771 I/O chassis |
Function and Working Principle
The 1771-OMD/B operates by:
- Receiving control signals from PLC or DCS systems
- Switching AC loads such as motors, solenoids, or relays
- Providing electrical isolation and protection for output circuits
- Supporting modular replacement or expansion without system downtime
This ensures safe, precise, and reliable AC load switching in industrial processes.
Role in Industrial Automation
The 1771-OMD/B serves as a key digital AC interface:
- Controls AC-powered actuators, motors, and relays
- Converts PLC/DCS digital commands into AC output switching
- Maintains organized terminal wiring for easy maintenance
- Supports modular system expansion within the 1771 I/O chassis
- Enhances process safety, reliability, and operational efficiency
It is ideal for industrial automation, manufacturing, and process control systems where AC output management is required.
Industrial Applications
The 1771-OMD/B is commonly used in:
- AC-powered actuator, relay, and motor control
- PLC/DCS-controlled industrial process automation
- SCADA systems requiring digital AC output control
- Industrial environments needing robust and modular AC switching
- Applications where safe and reliable AC load operation is critical
Its industrial-grade construction ensures long-term durability.
Installation and System Integration
Installation steps:
- Insert the module into a standard 1771 I/O chassis slot
- Connect AC load wiring to motors, relays, or solenoids
- Verify correct wiring and AC load ratings
- Configure PLC or DCS to control AC output channels
- Maintain access for inspection, maintenance, and expansion
Proper installation ensures safe, efficient, and reliable AC load switching.
Compatible System Components
The 1771-OMD/B integrates with:
- Allen-Bradley 1771 I/O chassis
- PLC controllers and DCS systems
- AC-powered devices: motors, solenoids, relays
- SCADA systems for monitoring and control
- Other 1771 I/O modules for modular system expansion
This creates a reliable and scalable AC output network.
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| Allen-Bradley 1771-OMD | Digital AC Output Module | Standard AC output switching | PLC/DCS systems |
| Allen-Bradley 1771-OMR | Relay Output Module | AC/DC relay switching | Industrial automation |
| Siemens SM 1232 | Digital AC Output Module | AC load control | PLC control panels |
| ABB AO812 | AC Output Module | Industrial AC switching | Process control systems |
| GE IS200TRLYH2C | Relay Output Terminal Block | AC relay outputs | Automation panels |
Key Advantages
- Provides reliable digital AC output control for industrial devices
- Modular design for easy installation, maintenance, and expansion
- Organized terminals for efficient wiring and troubleshooting
- Robust construction ensures long-term industrial operation
- Fully compatible with Allen-Bradley 1771 I/O chassis and PLC systems
- Supports scalable AC output networks and modular automation design
Technical FAQs
What type of outputs does it provide?
Digital AC outputs for motors, relays, solenoids, and other AC-powered devices.
How is it mounted?
Plug-in module for Allen-Bradley 1771 I/O chassis.
Is it suitable for industrial environments?
Yes, designed for reliable operation under demanding industrial conditions.
Can it work with other 1771 modules?
Yes, fully compatible within the 1771 I/O chassis system.
Conclusion
The Allen-Bradley 1771-OMD/B Digital AC Output Module is a robust, precise, and modular solution for AC load control. Its organized terminals, reliable switching, and compatibility with the 1771 I/O chassis make it essential for PLC, DCS, and SCADA systems requiring safe, efficient, and dependable AC output control in industrial automation.