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- 1756-OB16I
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- USA
- 14.5 × 5.6 × 14.0 cm
- 0.34kg
- Xiamen, China
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1756-OB16I Detailed Product Overview
Product Introduction
The 1756-OB16I is a 16-point isolated digital DC output module designed for industrial automation systems requiring stable switching performance, electrical isolation between channels, and reliable control of DC loads. It belongs to the ControlLogix modular automation platform and is widely used in industrial environments where high noise immunity and safe output separation are required.
This module provides 16 individually isolated DC sourcing output channels. Each channel can independently drive industrial devices such as relays, solenoids, indicator lamps, and small DC loads. The isolation design reduces electrical interference between channels, improving system stability and protecting connected equipment from cross-circuit disturbances.
The module is installed in a ControlLogix chassis and integrates with PLC processors and communication modules to form a complete automation control system. It is suitable for continuous operation in demanding industrial environments such as manufacturing lines, packaging systems, and process control applications.
Brand Information
| Item | Description |
|---|---|
| Brand | Industrial Automation Brand |
| Product Platform | ControlLogix |
| Product Type | Isolated DC Output Module |
| Main Function | DC Load Switching with Channel Isolation |
| 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, reliability, and high-speed processing.
The system supports:
- PLC logic execution
- Digital I/O control
- Motion and process automation
- Industrial communication networking
- System diagnostics and monitoring
Key characteristics include:
- High-speed backplane communication
- Modular expandability
- Strong industrial reliability
- Flexible architecture design
- Long operational lifecycle
- High system integration capability
The 1756-OB16I belongs to the isolated DC output module family and is optimized for applications requiring channel-level electrical isolation and stable DC output control.
It is widely used in:
- Automotive manufacturing systems
- Packaging machinery
- Material handling systems
- Logistics automation
- Robotics systems
- Process control systems
- General industrial automation
1756-OB16I Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-OB16I |
| Product Type | Isolated DC Output Module |
| Series | ControlLogix |
| Number of Outputs | 16 Channels |
| Output Voltage Range | 10–30V DC |
| Output Type | Transistor Sourcing Output |
| Isolation Type | Individually Isolated Channels |
| Isolation Voltage | 250V continuous |
| Output Current per Point | 1 A |
| Output Current per Module | 8 A max (system dependent) |
| Off-State Leakage Current | ≤ 1 mA |
| On-State Voltage Drop | ~1.2 V DC |
| Response Time | ~1 ms |
| Surge Current | Up to 4 A per point (short duration) |
| Backplane Current @ 5.1V DC | ~350 mA |
| Backplane Current @ 24V DC | ~2.5 mA |
| Power Dissipation | ~3.6 W |
| Thermal Dissipation | ~12.28 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（ ） | 0.34 kg |
Product Features
1. Individual Channel Isolation
Each of the 16 output channels is electrically isolated, reducing interference between outputs and improving system reliability in high-noise environments.
2. Stable DC Output Control
The module provides consistent DC switching performance, suitable for controlling industrial loads such as relays, solenoids, and indicator devices.
3. Fast Switching Response
With approximately 1 ms response time, the module supports fast industrial automation processes and precise timing control.
4. High Electrical Noise Immunity
Channel isolation improves resistance to electrical noise and prevents cross-channel disturbances.
5. Modular System Integration
The module integrates seamlessly into ControlLogix systems and works alongside processors, communication modules, and other I/O components.
Product Advantages
Improved Signal Integrity
Isolation design prevents electrical interference between channels.
High Reliability in Industrial Environments
Suitable for vibration, noise, and continuous operation conditions.
Flexible System Design
Supports scalable automation architecture within modular PLC systems.
Fast Response Performance
Enhances machine synchronization and process efficiency.
Reduced Maintenance Issues
Isolation reduces fault propagation between channels.
Compact Installation
Optimized size reduces cabinet space usage.
Main Applications
Automotive Manufacturing
Used in robotic stations, assembly lines, and automated production systems.
Packaging Systems
Controls conveyors, sealing equipment, labeling machines, and sorting systems.
Material Handling
Supports warehouse automation, conveyor systems, and logistics operations.
Process Automation
Used in systems requiring isolated and reliable DC output control.
Robotics Systems
Provides stable output control for actuators and industrial control devices.
General Manufacturing
Used in various machine automation and industrial production environments.
Industrial Performance Summary
| Capability | Benefit |
|---|---|
| 16 Isolated Outputs | Reduced interference |
| Fast Switching | Improved machine performance |
| Electrical Isolation | Higher system safety |
| Modular Architecture | Flexible expansion |
| Stable DC Control | Reliable operation |
| Compact Design | Space efficiency |
| Industrial Durability | Long service life |
| High Compatibility | Easy integration |
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 output |
| 1756-OB8 | DC Output Module | 8 | DC | 14.5 × 5.6 × 14.0 cm | 0.32 kg | Compact version |
| 1756-OB16D | Diagnostic DC Output | 16 | DC | 14.5 × 5.6 × 14.0 cm | 0.40 kg | Fault detection |
| 1756-OB16E | Electronic fused DC Output | 16 | DC | 14.5 × 5.6 × 14.0 cm | 0.38 kg | Built-in protection |
| 1756-OB32 | High-density DC Output | 32 | DC | 14.5 × 5.6 × 14.0 cm | 0.30 kg | High channel count |
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 CPU performance |
| 1756-EN2TR | Ethernet Module | Network 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 reading |
| 1756-IF16 | Analog Module | Signal processing | 14.5 × 5.6 × 14.0 cm | 0.31 kg | High accuracy |
| 1756-PA75 | Power Module | Power supply | 14.5 × 5.6 × 14.0 cm | 0.90 kg | Stable power distribution |
Installation Notes
- Install in ventilated control cabinet
- Ensure proper grounding
- Use industrial wiring standards
- Avoid moisture and conductive dust
- Maintain heat dissipation space
Maintenance Notes
| Item | Recommendation |
|---|---|
| Terminal inspection | Regular checking |
| Dust cleaning | Periodic maintenance |
| Temperature control | Ensure ventilation |
| Output testing | Verify switching |
| Power stability | Maintain supply quality |
| Vibration control | Reduce mechanical stress |
Overall Summary
The 1756-OB16I is a robust 16-channel isolated DC output module designed for industrial automation systems requiring electrical isolation, stable switching performance, and high reliability. Its individually isolated channels improve system safety and signal integrity, making it suitable for complex industrial environments where stable and interference-free DC output control is essential.