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- Allen Bradley
- 1791-8BC
- Block I/O Module
- USA
- 176.5 x 68.8 x 98 mm
- 2.72 kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
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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
The Allen Bradley 1791-8BC is a Block I/O Module designed for digital input/output control in industrial automation systems. With dimensions of 176.5 × 68.8 × 98 mm and a weight of 2.72 kg, this module provides a robust and high-capacity solution for controlling field devices such as actuators, relays, and sensors. It is compatible with Allen Bradley Block I/O racks, offering a modular and scalable platform for distributed automation systems.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Allen Bradley |
| Model | 1791-8BC |
| Product Type | Block I/O Module |
| Dimensions | 176.5 × 68.8 × 98 mm |
| Weight | 2.72 kg |
| Module Type | Digital I/O (Input/Output) |
| Number of Channels | 8 channels |
| Input/Output Type | Sinking or sourcing, configurable |
| Mounting | Block I/O rack |
| Environmental Rating | Industrial-grade, suitable for harsh environments |
| Compatibility | Allen Bradley Block I/O racks and controllers |
Function and Working Principle
The 1791-8BC operates by:
- Receiving digital input signals from field devices
- Transmitting input status to the PLC/controller
- Executing output commands to control actuators, relays, or indicators
- Providing 8 discrete channels for combined input/output control
- Integrating into distributed Block I/O systems to expand networked control capacity
It serves as a key interface between field devices and the control system, ensuring accurate and reliable signal communication.
Role in Industrial Automation
The 1791-8BC is used to:
- Control and monitor field devices such as relays, actuators, and sensors
- Expand digital I/O capacity in distributed networks
- Support modular and scalable system architectures
- Ensure reliable operation under industrial conditions
Industrial Applications
- Factory automation and process control systems
- Distributed I/O networks for machinery and equipment
- Remote monitoring and control of industrial devices
- Integration into modular Allen Bradley Block I/O systems
Installation and Usage
- Mount the 1791-8BC in an Allen Bradley Block I/O rack
- Connect input/output wiring to sensors, actuators, or relays
- Configure the module through PLC or controller software
- Verify operation of all 8 channels
- Maintain proper power supply and environmental conditions for reliable performance
Its compact and modular design allows easy installation, maintenance, and future system expansion.
Compatible System Components
- Allen Bradley Block I/O racks
- Allen Bradley PLCs and controllers
- Field devices such as actuators, sensors, and relays
- Other Block I/O input/output modules
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| 1791-8BC | Block I/O Module | 8 digital channels | Compact high-reliability I/O control |
| 1791-16B0 | Block I/O Module | 16 channels | Moderate-capacity input monitoring |
| 1791-32B0 | Block I/O Module | 32 channels | High-capacity digital input/output applications |
Key Advantages
- 8 digital channels for flexible control and monitoring
- Compact 176.5 × 68.8 × 98 mm design
- High industrial-grade weight of 2.72 kg, indicating robust construction
- Modular design allows scalable network expansion
- Compatible with distributed Block I/O systems
Technical FAQs
What is the primary function?
To monitor digital inputs and control outputs on 8 channels for field devices in industrial automation systems.
Which systems is it compatible with?
Compatible with Allen Bradley Block I/O racks and PLC controllers.
Can it operate in harsh industrial environments?
Yes, it is industrial-grade, designed to withstand vibration, dust, and temperature extremes.
How many channels does it provide?
It provides 8 digital input/output channels.
Conclusion
The Allen Bradley 1791-8BC Block I/O Module is a robust, reliable, and compact solution for digital input/output control in industrial automation systems. Its 8-channel capability, modular design, and industrial-grade construction make it ideal for scalable, dependable, and flexible control networks.