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- 1756-OB32
- ControlLogix ControlNet Communication Module
- USA
- 11.1 × 3.8 × 30.0 cm
- 0.26kg
- Xiamen, China
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1756-OB32 Detailed Product Overview
Product Introduction
The 1756-OB32 is a high-density 32-point digital DC output module designed for industrial automation systems requiring large-scale output control, stable switching performance, and efficient cabinet space utilization. It belongs to the ControlLogix modular automation platform and is widely used in complex manufacturing environments where multiple output signals must be controlled simultaneously.
This module provides 32 DC sourcing output channels divided into two groups of 16 points. It is designed for 12/24V DC industrial loads such as solenoids, relays, lamps, and small actuators. The module supports reliable switching performance and is optimized for integration into high-performance PLC systems.
It is installed in a ControlLogix chassis and works together with processors, communication modules, and other I/O components to form a complete industrial automation control system.
Brand Information
| Item | Description |
|---|---|
| Brand | Industrial Automation Brand |
| Product Platform | ControlLogix |
| Product Type | High-Density DC Output Module |
| Main Function | Multi-channel DC Load Control |
| 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.
Key capabilities include:
- PLC logic execution
- Digital I/O control
- Motion and process automation
- Industrial communication integration
- System diagnostics and monitoring
Key characteristics:
- High-speed backplane communication
- Modular expandability
- Strong industrial reliability
- Flexible architecture design
- Long operational lifecycle
- High system integration capability
The 1756-OB32 belongs to the high-density DC output module category and is designed for applications requiring large numbers of output points in a compact form factor.
It is widely used in:
- Automotive manufacturing lines
- Packaging machinery systems
- Material handling equipment
- Logistics automation systems
- Robotics control systems
- Process control environments
- General industrial automation
1756-OB32 Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-OB32 |
| Product Type | Digital DC Output Module |
| Series | ControlLogix |
| Number of Outputs | 32 Channels |
| Output Groups | 2 groups (16 points each) |
| Output Voltage Range | 10–31.2 V DC |
| Output Type | Transistor Sourcing Output |
| Maximum Output Current per Point | 0.5 A per point @ 50°C (derates at higher temperature) |
| Typical Rated Current per Point | 0.35 A @ 60°C |
| Surge Current per Point | 1 A (10 ms) |
| Maximum Module Current | ~10–16 A depending on temperature |
| Response Time | 60 µs ON / up to 1 ms OFF |
| Isolation Voltage | 250 V (group-to-backplane) |
| Backplane Current @ 5.1V DC | ~300 mA |
| Backplane Power Consumption | ~1.58 W |
| Max Power Dissipation | ~4.8 W @ 60°C |
| Thermal Dissipation | ~16.37 BTU/hr |
| Off-state Leakage Current | ≤ 0.5 mA per point |
| On-state Voltage Drop | ≤ 200 mV @ 0.5 A |
| 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 |
| Dimensions | 11.1 × 3.8 × 30.0 cm |
| Weight kg（ ） | 0.26 kg |
Product Features
1. High-Density 32-Channel Output Design
The module provides 32 output channels in a single slot, significantly reducing cabinet space requirements while increasing system output capacity.
2. Dual Group Architecture
Outputs are divided into two independent groups of 16 channels, improving wiring organization and load distribution.
3. Stable DC Switching Performance
Supports reliable switching of 12/24V DC industrial loads with consistent electrical performance.
4. Fast Response Capability
With microsecond-level switching response, the module supports precise timing control in automation systems.
5. Industrial-Grade Durability
Designed for continuous operation in harsh industrial environments with vibration, heat, and electrical noise.
Product Advantages
High Channel Density
32 outputs in one module reduce hardware footprint and system complexity.
Efficient System Design
Fewer modules required, simplifying wiring and installation.
Stable Industrial Operation
Reliable performance under continuous production loads.
Flexible Control Capability
Supports a wide range of industrial DC devices.
Strong System Compatibility
Fully integrates into ControlLogix modular architecture.
Cost-Effective Expansion
Reduces rack space and hardware expansion costs.
Main Applications
Automotive Manufacturing
Used in large-scale assembly lines and automated production systems.
Packaging Systems
Controls conveyors, labeling machines, and high-speed packaging equipment.
Material Handling Systems
Supports warehouse automation and logistics conveyor control.
Robotics Systems
Provides multi-point output control for robotic operations.
Process Automation
Used in systems requiring large numbers of synchronized outputs.
Industrial Machinery
Applied in machine automation and production line control.
Industrial Performance Summary
| Capability | Benefit |
|---|---|
| 32 Output Channels | High integration density |
| Fast Switching | Precise control |
| Dual Group Design | Improved wiring structure |
| Compact Form Factor | Space saving |
| Industrial Durability | Long service life |
| Stable DC Output | Reliable operation |
| Modular Architecture | Flexible expansion |
| 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-OB16E | Electronic fused output | 16 | DC | 14.5 × 5.6 × 14.0 cm | 0.38 kg | Built-in protection |
| 1756-OB16D | Diagnostic output | 16 | DC | 14.5 × 5.6 × 14.0 cm | 0.40 kg | Fault detection |
| 1756-OB16I | Isolated output | 16 | DC | 14.5 × 5.6 × 14.0 cm | 0.34 kg | Channel isolation |
| 1756-OB8 | Compact output | 8 | DC | 14.5 × 5.6 × 14.0 cm | 0.32 kg | Small system use |
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 | Strong performance |
| 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 precision |
| 1756-PA75 | Power module | Power supply | 14.5 × 5.6 × 14.0 cm | 0.90 kg | Stable power output |
Installation Notes
- Install in ventilated control cabinet
- Ensure proper grounding
- Use shielded wiring
- Avoid moisture and conductive dust
- Maintain heat dissipation space
Maintenance Notes
| Item | Recommendation |
|---|---|
| Terminal inspection | Regular tightening |
| Dust cleaning | Periodic maintenance |
| Temperature control | Ensure ventilation |
| Output testing | Verify switching |
| Power stability | Maintain clean supply |
| Vibration control | Reduce mechanical stress |
Overall Summary
The 1756-OB32 is a high-density 32-channel DC output module designed for industrial automation systems requiring large-scale output control in a compact form factor. Its dual-group architecture, stable switching performance, and integration flexibility make it suitable for complex manufacturing environments where space efficiency and multi-channel control are essential.