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- Allen Bradley
- 1791DS-IB8XOB8
- DeviceNet Safety CompactBlock Input Module
- USA
- 170 x 68.15 x 73.3 mm
- 0.43 kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
- COO
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Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
In modern industrial automation, safety and reliable digital input monitoring are essential for protecting personnel and equipment. The Allen Bradley 1791DS-IB8XOB8 DeviceNet Safety CompactBlock Input Module is designed to provide secure, high-speed monitoring of safety and standard input signals over DeviceNet networks, enabling safe and coordinated process control.
This module ensures that signals from safety devices, such as emergency stops or safety sensors, are accurately transmitted to the control system, offering robust protection and reliable communication in industrial environments.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Allen Bradley |
| Model | 1791DS-IB8XOB8 |
| Product Type | DeviceNet Safety CompactBlock Input Module |
| Function | Safety and standard digital input monitoring |
| Number of Inputs | 8 standard + 8 safety inputs |
| Communication Protocol | DeviceNet |
| Dimensions | 170 × 68.15 × 73.3 mm |
| Weight | 0.43 kg |
| Mounting Type | Panel / DIN Rail Mountable |
| Input Type | Discrete / Digital |
| Isolation | Built-in electrical isolation |
| Operating Temperature | 0°C to 60°C |
| Environment | Industrial-grade |
| Application | Safety-critical industrial automation |
Function and Working Principle
The 1791DS-IB8XOB8 module operates by monitoring both standard and safety digital input signals, transmitting them securely over a DeviceNet network. Key functions include:
- High-speed detection of safety and standard discrete inputs
- Secure communication to the control system
- Built-in electrical isolation for reliability
- Status indication through LED signaling for quick diagnostics
- Integrated safety monitoring to comply with industrial safety standards
By ensuring accurate and secure signal transmission, this module supports safe operation of industrial processes.
Role in Industrial Control Systems
This DeviceNet Safety input module is critical for automation systems by:
- Monitoring safety devices, sensors, and standard input signals
- Providing secure data to PLCs and distributed control systems
- Ensuring safe operation in electrically noisy industrial environments
- Supporting fast, coordinated, and safety-compliant process control
It guarantees that critical safety inputs are reliably captured and communicated, reducing risk of accidents or equipment damage.
Industrial Applications
The Allen Bradley 1791DS-IB8XOB8 is commonly applied in:
- Safety monitoring in manufacturing and assembly lines
- Emergency stop and interlock circuits
- Material handling and packaging systems requiring safety compliance
- Process control systems in chemical, food, and beverage industries
- Distributed control architectures requiring secure and safe digital inputs
Its compact design and industrial-grade construction make it ideal for safety-critical and high-reliability applications.
Installation and System Integration
Proper installation ensures optimal performance:
- Mounted on panels or DIN rails following manufacturer guidelines
- Connected to safety and standard field devices with proper wiring
- Integrated into DeviceNet networks for secure and coordinated communication
- Ensure correct network termination, grounding, and safety wiring
- Follow industrial safety and environmental standards
Correct installation guarantees accurate input detection, safe operation, and stable system performance.
Compatible System Components
The 1791DS-IB8XOB8 typically integrates with:
- Allen Bradley CompactBlock DeviceNet masters and controllers
- Safety devices such as E-stops, light curtains, and interlock switches
- Standard digital field devices including sensors and push buttons
- DeviceNet network components including cables, terminators, and hubs
- PLCs and distributed I/O modules
These components together form a secure, scalable, and safety-compliant industrial automation network.
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| 1791DS-IB8 | DeviceNet Input Module | 8 digital inputs, compact | Standard input applications |
| 1791DS-IB16 | DeviceNet Input Module | 16 digital inputs | Medium input systems |
| 1791DS-IB8XOB8 | DeviceNet Safety Input Module | 8 standard + 8 safety inputs | Safety-critical systems |
| 1791DS-OB16 | DeviceNet Output Module | 16 outputs, coordinated control | Digital output applications |
Key Advantages
- High-speed detection of both safety and standard digital inputs
- Secure communication over DeviceNet networks
- Built-in electrical isolation for reliable operation
- Compact and industrial-grade construction
- Supports safety-compliant industrial automation
- Easy integration into PLCs and distributed I/O systems
- Suitable for continuous operation in safety-critical environments
Technical FAQs
What is the main function of the 1791DS-IB8XOB8?
It provides secure monitoring of safety and standard digital inputs and transmits signals over DeviceNet.
Where is it typically used?
It is used in safety-critical automation systems, emergency stop circuits, and interlock monitoring applications.
Does it provide electrical isolation?
Yes, it includes built-in isolation to ensure reliable operation in noisy environments.
Is it suitable for compact installations?
Yes, its compact form factor allows integration into panels and DIN rail setups.
Conclusion
The Allen Bradley 1791DS-IB8XOB8 DeviceNet Safety CompactBlock Input Module is a reliable and secure solution for safety-critical industrial automation, providing accurate monitoring of standard and safety inputs with robust DeviceNet communication.
For engineers and system integrators, this module ensures fast, secure, and continuous input monitoring, supporting safe and efficient operation of modern industrial control systems.