Excellent PLC
Product Introduction
The Allen-Bradley 1771-OMD/B Digital DC Output Module is a 16-point output module designed to provide reliable DC switching for industrial PLC applications. It is capable of driving field devices at higher voltage levels up to 220 V AC, supporting pilot-duty loads and discrete control of relays, solenoids, indicators, and other DC actuators.
This module is engineered for rack-mounted installation within 1771 I/O systems, delivering consistent and robust operation in industrial environments. Its design ensures channel-to-backplane isolation, overcurrent protection, and safe switching of pilot-duty loads, making it suitable for process automation, machinery control, and other critical industrial applications.
Product Specifications
| Parameter | Specification |
|---|---|
| Model | 1771-OMD/B |
| Product Type | Digital DC Output Module |
| Number of Points | 16 |
| Output Voltage | 220 V AC (pilot duty) |
| Maximum Output Current (Pilot Duty) | 8 A per module |
| Output Type | Digital DC, discrete switching |
| Channel Isolation | Channel-to-backplane isolation |
| Protection | Overcurrent and short-circuit protection per channel |
| Mounting | Rack-mountable (1771 I/O rack) |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | −40°C to 85°C |
| Dimensions | 165 x 51 x 89 mm |
| Weight | 0.748 kg |
| Load Type | Pilot duty discrete devices |
| Reliability | Industrial-grade, continuous operation capable |
Product Applications
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Switching pilot-duty DC loads in industrial automation systems
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Controlling solenoids, relays, and small actuators in manufacturing and process control
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Driving indicator lights, alarms, and low-power devices in control panels
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Digital output interface for PLC-controlled machinery and sequential processes
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Rack-mounted I/O configurations requiring reliable high-voltage discrete outputs
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Applications where channel isolation and protection are critical to system integrity
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Continuous operation in harsh industrial environments with electrical noise
Product Advantages
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High Channel Density: 16 discrete output points reduce the number of modules required.
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Pilot-Duty Capability: Can switch high-voltage devices up to 220 V AC safely.
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Built-in Protection: Overcurrent and short-circuit protection for each channel safeguards module and field devices.
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Rack-Mountable Design: Standard 1771 form factor enables easy integration into existing PLC racks.
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Reliable Operation: Designed for continuous industrial use with stable switching performance.
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Channel Isolation: Protects PLC backplane and prevents cross-channel interference.
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Versatile Application: Supports relays, solenoids, indicators, and other discrete field devices.
