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- 1756-OB16IS
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- 14.5 × 5.6 × 14.0 cm
- 0.2kg
- Xiamen, China
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1756-OB16IS Detailed Product Overview
Product Introduction
The 1756-OB16IS is a 16-point individually isolated digital DC output module designed for industrial automation systems requiring strong electrical isolation, stable switching performance, and high noise immunity. It belongs to the ControlLogix modular automation platform and is widely used in complex industrial environments where signal integrity and channel separation are critical.
This module provides 16 DC sourcing output channels with per-point isolation. Unlike standard output modules where channels share common electrical references, the 1756-OB16IS isolates each output channel, reducing interference and preventing electrical faults from propagating across channels.
It is installed in a ControlLogix chassis and works together with PLC processors, communication modules, and other I/O components to build a complete automation control system. It is suitable for continuous operation in demanding environments such as manufacturing plants, process control systems, and automated production lines.
Brand Information
| Item | Description |
|---|---|
| Brand | Industrial Automation Brand |
| Product Platform | ControlLogix |
| Product Type | Isolated DC Output Module |
| Main Function | DC Load Switching with Per-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 industrial automation system designed for complex control applications requiring scalability, high performance, and reliable operation.
Core capabilities include:
- PLC logic processing
- Digital I/O control
- Motion and process automation
- Industrial communication integration
- System diagnostics and monitoring
Key characteristics:
- High-speed backplane communication
- Modular system expansion
- Strong industrial reliability
- Flexible architecture design
- Long lifecycle operation
- High electrical noise resistance
The 1756-OB16IS belongs to the isolated DC output module family and is designed for applications requiring independent electrical separation between output channels.
It is widely used in:
- Automotive manufacturing systems
- Packaging machinery
- Robotics systems
- Material handling systems
- Logistics automation
- Process control environments
- General industrial automation
1756-OB16IS Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-OB16IS |
| Product Type | Individually Isolated DC Output Module |
| Series | ControlLogix |
| Number of Outputs | 16 Channels |
| Output Voltage Range | 10–30 V DC |
| Output Type | Transistor Sourcing Output |
| Isolation Type | Per-channel isolation |
| Isolation Voltage | 250 V continuous between outputs |
| Output Current per Point | 1 A per channel |
| Output Current per Module | 8 A total (typical system limit) |
| Off-State Leakage Current | ≤ 1 mA |
| On-State Voltage Drop | ~1.2 V DC |
| Response Time | ~1 ms switching delay |
| Backplane Current @ 5.1V DC | ~350 mA |
| Backplane Current @ 24V DC | ~2.5 mA |
| Power Dissipation | ~3.3–3.6 W |
| Thermal Dissipation | ~12 BTU/hr |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5%–95% non-condensing |
| Vibration Resistance | 2 g @ 10–500 Hz |
| Shock Resistance | 30 g operating |
| Wiring Method | Removable Terminal Block |
| Cooling Method | Passive cooling |
| Dimensions | 14.5 × 5.6 × 14.0 cm |
| Weight kg（ ） | 0.20 kg |
Product Features
1. Per-Channel Electrical Isolation
Each of the 16 output channels is individually isolated, ensuring that electrical faults or noise on one channel do not affect others.
2. Stable DC Output Control
The module provides reliable DC switching for industrial devices such as solenoids, relays, and indicators.
3. Fast Switching Performance
With a response time around 1 ms, it supports precise and synchronized automation control.
4. High Noise Immunity Design
Strong electrical isolation improves resistance to industrial electromagnetic interference.
5. Modular Integration Capability
Designed for seamless integration into ControlLogix systems for scalable automation solutions.
Product Advantages
High Electrical Safety
Per-channel isolation significantly reduces the risk of cross-channel failure.
Reliable Industrial Operation
Suitable for continuous operation in harsh industrial environments.
Flexible System Design
Allows independent channel control without shared electrical interference.
Fast Response Output
Improves machine timing and process efficiency.
Reduced Fault Propagation
Isolation prevents cascading failures across output channels.
Compact Modular Structure
Saves control cabinet space while maintaining high functionality.
Main Applications
Automotive Manufacturing
Used in robotic welding systems, assembly lines, and transfer stations.
Packaging Systems
Controls conveyors, sealing machines, and automated packaging equipment.
Material Handling Systems
Used in warehouse automation and logistics conveyor systems.
Robotics Systems
Provides isolated output control for actuators and industrial motion devices.
Process Automation
Used in systems requiring high reliability and electrical separation.
General Industrial Manufacturing
Applied in various machine control and production systems.
Industrial Performance Summary
| Capability | Benefit |
|---|---|
| 16 Isolated Outputs | Maximum signal independence |
| Fast Switching | High-speed control |
| Electrical Isolation | Improved safety |
| Noise Resistance | Stable operation |
| Modular Architecture | Flexible expansion |
| Compact Design | Space efficiency |
| Industrial Durability | Long lifecycle |
| Fault Isolation | Improved system reliability |
Recommended Related Models (Same Series / Similar Function)
| Model | Type | Channels | Output Type | Dimensions | Weight kg（ ） | Feature |
|---|---|---|---|---|---|---|
| 1756-OB16I | Isolated DC Output | 16 | DC | 14.5 × 5.6 × 14.0 cm | 0.34 kg | Standard isolation |
| 1756-OB16 | Standard DC Output | 16 | DC | 14.5 × 5.6 × 14.0 cm | 0.36 kg | General purpose |
| 1756-OB8 | Compact DC Output | 8 | DC | 14.5 × 5.6 × 14.0 cm | 0.32 kg | Small systems |
| 1756-OB16D | Diagnostic Output | 16 | DC | 14.5 × 5.6 × 14.0 cm | 0.40 kg | Fault detection |
| 1756-OB16E | Electronic fused Output | 16 | DC | 14.5 × 5.6 × 14.0 cm | 0.38 kg | Built-in protection |
Recommended Popular Models (Same Platform)
| Model | Type | Function | Dimensions | Weight kg（ ） | Advantage |
|---|---|---|---|---|---|
| 1756-L81E | PLC CPU | High-speed processing | 14.5 × 5.6 × 14.0 cm | 0.45 kg | Powerful controller |
| 1756-EN2TR | Ethernet Module | 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 sensing |
| 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 energy supply |
Installation Notes
- Install in ventilated control cabinet
- Ensure proper grounding
- Use shielded industrial wiring
- Avoid moisture and conductive dust
- Maintain proper heat dissipation
Maintenance Notes
| Item | Recommendation |
|---|---|
| Terminal inspection | Regular tightening |
| Dust cleaning | Periodic cleaning |
| Temperature control | Ensure airflow |
| Output testing | Verify switching |
| Power stability | Maintain clean supply |
| Vibration control | Reduce mechanical stress |
Overall Summary
The 1756-OB16IS is a high-reliability 16-channel individually isolated DC output module designed for industrial automation systems requiring maximum electrical separation, stable switching performance, and strong noise immunity. Its per-channel isolation structure makes it particularly suitable for complex systems where signal integrity and fault containment are critical.