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- 1756-OB16D
- ControlLogix ControlNet Communication Module
- USA
- 14.5 × 5.6 × 14.0 cm
- 0.4kg
- Xiamen, China
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1756-OB16D Detailed Product Overview
Product Introduction
The 1756-OB16D is a 16-point digital DC output module designed for industrial automation systems that require reliable output switching, advanced diagnostic feedback, and stable DC load control. It is part of the ControlLogix platform and is widely used in high-performance industrial environments where precise control and system monitoring are required.
This module provides 16 sourcing DC output channels with built-in diagnostic functions. Compared with standard output modules, the 1756-OB16D adds field-side diagnostics such as load detection, output verification, and electronic protection functions. These features help operators quickly identify wiring issues, load failures, or output faults.
The module is installed in a ControlLogix chassis and integrates with PLC processors, communication modules, and other I/O components to form a complete automation system. It is commonly applied in production lines, machinery control systems, and automated process environments.
Brand Information
| Item | Description |
|---|---|
| Brand | Industrial Automation Brand |
| Product Platform | ControlLogix |
| Product Type | Diagnostic DC Output Module |
| Main Function | DC Load Switching + Diagnostics |
| Installation Method | Chassis Mount |
| Output Type | Transistor Sourcing Output |
| Application Category | Industrial Automation |
| System Architecture | Modular PLC System |
Product Series Introduction
ControlLogix Series
The ControlLogix platform is a modular automation system designed for complex industrial control applications requiring scalability, high-speed processing, and integrated diagnostics.
The platform supports:
- PLC logic processing
- Digital I/O control
- Motion control integration
- Industrial communication networks
- System diagnostics
- Safety and automation coordination
Key characteristics:
- High-speed backplane communication
- Modular expansion capability
- Strong industrial reliability
- Flexible system architecture
- Long operational life cycle
- Advanced diagnostics support
The 1756-OB16D belongs to the diagnostic DC output module family and is designed for applications requiring both output control and real-time fault detection.
It is widely used in:
- Automotive manufacturing systems
- Packaging equipment
- Material handling systems
- Logistics automation
- Process control systems
- Robotics systems
- Industrial machinery
1756-OB16D Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-OB16D |
| Product Type | Diagnostic DC Output Module |
| Series | ControlLogix |
| Number of Outputs | 16 Channels |
| Output Voltage Range | 19.2–30V DC |
| Output Type | Sourcing Transistor Output |
| Output Current per Point | 1 A |
| Output Current per Module | 4 A (typical system limit) |
| Short-Circuit Protection | Electronic protection per point |
| Diagnostic Functions | Load detection, output verification |
| Off-State Leakage Current | ≤ 1 mA |
| On-State Voltage Drop | Approx. 1.2 V DC |
| Response Time | ~1 ms |
| Isolation Voltage | 250V continuous (group isolation) |
| Backplane Current @ 5.1V DC | Approx. 250 mA |
| Backplane Current @ 24V DC | Approx. 140 mA |
| Power Dissipation | Approx. 3.3–4.6 W |
| Thermal Dissipation | Approx. 11 BTU/hr |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5%–95% non-condensing |
| Vibration Resistance | Industrial grade |
| Shock Resistance | Industrial grade |
| Wiring Method | Removable Terminal Block |
| Cooling Method | Passive cooling |
| Dimensions | 14.5 × 5.6 × 14.0 cm |
| Weight kg（ ） | 0.40 kg |
Product Features
1. Advanced Diagnostic Functions
The 1756-OB16D includes built-in diagnostics that provide real-time monitoring of output conditions.
It supports:
- No-load detection
- Output state verification
- Pulse testing diagnostics
- Per-channel fault indication
These features allow faster troubleshooting and reduced downtime.
2. 16-Channel DC Output Control
The module provides 16 independent DC output channels, allowing efficient control of multiple industrial devices from a single module.
3. High-Speed Switching Performance
With a response time around 1 ms, the module supports fast and precise control of DC loads, improving system responsiveness.
4. Electronic Protection Design
Each output channel includes electronic protection mechanisms that reduce the risk of damage caused by overload or short circuits.
5. Industrial Reliability
The module is designed for harsh industrial environments, maintaining stable performance under vibration, electrical noise, and continuous operation.
Product Advantages
Built-in Diagnostics
Real-time monitoring improves system visibility and reduces maintenance time.
Fast Response Control
Improves machine synchronization and production efficiency.
Reliable DC Switching
Ensures stable operation of industrial loads.
Reduced Downtime
Fault detection helps identify issues early.
Modular Flexibility
Easily integrates into ControlLogix systems for scalable design.
Compact Structure
Reduces cabinet space requirements.
Main Applications
Automotive Production
Used in robotic systems, assembly lines, and automated transfer equipment.
Packaging Systems
Controls conveyors, sensors, and automated packaging machines.
Material Handling
Supports warehouse automation, conveyor systems, and logistics control.
Process Automation
Used in industrial systems requiring diagnostic output control.
Robotics Systems
Provides fast DC switching for robotic actuators and control devices.
General Manufacturing
Used in machine automation and production line control systems.
Industrial Performance Summary
| Capability | Benefit |
|---|---|
| 16-Channel Output | High system integration |
| Diagnostic Function | Fast fault detection |
| Fast Switching | Improved machine performance |
| Electronic Protection | Increased system safety |
| Modular Architecture | Flexible expansion |
| Stable DC Output | Reliable operation |
| Compact Design | Space saving |
| Industrial Durability | Long service life |
Recommended Related Models (Same Series / Similar Function)
| Model | Type | Channels | Output Type | Dimensions | Weight kg（ ） | Feature |
|---|---|---|---|---|---|---|
| 1756-OB16 | DC Output Module | 16 | DC | 14.5 × 5.6 × 14.0 cm | 0.36 kg | Standard DC output |
| 1756-OB8 | DC Output Module | 8 | DC | 14.5 × 5.6 × 14.0 cm | 0.32 kg | Compact design |
| 1756-OB16I | Isolated DC Output | 16 | DC | 14.5 × 5.6 × 14.0 cm | 0.35 kg | Electrical isolation |
| 1756-OB32 | High-density DC Output | 32 | DC | 14.5 × 5.6 × 14.0 cm | 0.30 kg | High channel count |
| 1756-OX8I | Relay Output Module | 8 | Relay | 14.5 × 5.6 × 14.0 cm | 0.36 kg | Relay isolation output |
Recommended Popular Models (Same Platform)
| Model | Type | Function | Dimensions | Weight kg（ ） | Advantage |
|---|---|---|---|---|---|
| 1756-L81E | PLC Processor | High-speed control | 14.5 × 5.6 × 14.0 cm | 0.45 kg | Strong processing capability |
| 1756-EN2TR | Ethernet Module | Industrial communication | 14.5 × 5.6 × 14.0 cm | 0.29 kg | Stable networking |
| 1756-IB16 | Input Module | Digital input | 14.5 × 5.6 × 14.0 cm | 0.27 kg | Reliable signal acquisition |
| 1756-IF16 | Analog Module | Signal processing | 14.5 × 5.6 × 14.0 cm | 0.31 kg | High precision |
| 1756-PA75 | Power Module | Power distribution | 14.5 × 5.6 × 14.0 cm | 0.90 kg | Stable power supply |
Installation Notes
- Install in a ventilated industrial cabinet
- Ensure proper grounding for noise reduction
- Use industrial-grade wiring
- Avoid humidity and conductive dust
- Maintain proper heat dissipation space
Maintenance Notes
| Item | Recommendation |
|---|---|
| Terminal check | Regular inspection |
| Dust cleaning | Periodic cleaning |
| Temperature control | Ensure ventilation |
| Output testing | Verify diagnostics |
| Power stability | Maintain consistent supply |
| Vibration control | Reduce mechanical stress |
Overall Summary
The 1756-OB16D is a diagnostic-enhanced 16-channel DC output module designed for industrial automation systems requiring both reliable switching and advanced fault detection. Its integrated diagnostics, fast response time, and modular design make it suitable for modern manufacturing environments where system transparency and operational reliability are essential.