CompactBlock I/O Module | Allen-Bradley 1791D-4B4P

SKU: 1791D-4B4P
  • Manufacturer: Allen-Bradley

  • Product No.: 1791D-4B4P

  • Condition:In stock

  • Product Type: I/O Modules

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 160g

  • Shipping port: Xiamen

  • Warranty: 12 months

The 1791D-4B4P is a CompactBlock I/O combination base block manufactured by Allen-Bradley for industrial automation networks. This discrete I/O module integrates 4 sink DC inputs and 4 source DC outputs, operating on a 24 VDC power supply. Designed to communicate over the DeviceNet network protocol, it delivers reliable distributed machine control while minimizing panel space requirements in factory floor environments.

I/O Architecture and Channel Configuration

The 1791D-4B4P features a combination base block design housing both input and output channels in a single compact housing. It includes four digital sink inputs and four digital source outputs, accommodating standard field sensors and actuators operating at 24 VDC. This integrated layout reduces wiring complexity and streamlines hardware footprints for discrete control systems.

Communication and Power Requirements

Operating on a standard 24 VDC nominal supply, the module interfaces directly with DeviceNet communication networks for real-time data exchange with programmable logic controllers. Its distributed I/O architecture enables seamless integration into machine-level control topologies, reducing main trunk cable lengths while maintaining high-speed signal transmission across industrial automation nodes.

Parameter Specification
Model 1791D-4B4P
Brand Allen-Bradley (Rockwell Automation)
Product Type CompactBlock I/O Combination Base Block
Communication Protocol DeviceNet
Input Type 4 Sink Digital Inputs
Output Type 4 Source Digital Outputs
Nominal Operating Voltage 24 VDC
Weight 0.65 lbs
Lifecycle Status Discontinued by Manufacturer

Frequently Asked Questions

Q: What type of network protocol does the 1791D-4B4P module support? A: The module supports the DeviceNet communication protocol, allowing it to connect directly to compatible industrial networks and controllers.

Q: What is the channel configuration for this combination base block? A: It features a combination of four digital sink inputs and four digital source outputs, operating on a 24 VDC power supply.

Order and Warranty Information

Terms of Purchase and Returns

Detailed guidelines on minimum order quantity, delivery times, payment options, warranty, and return policies.

We gladly accept bulk orders, with a minimum order quantity of just one unit.

Upon request, we can provide all necessary documents, including Certificates of Origin/Conformance and other required export paperwork.

We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% payable before shipment. For RMB transfers, please contact us if you have an agent in China.

All new and original items come with a standard one-year warranty. For extended warranty options, feel free to contact us for pricing details.

We prioritize your satisfaction. If you need to return an item, it must be done within 30 days of purchase. The product must be unused, unopened, and in its original packaging, including all accessories. Refunds will be processed within 5-7 business days of receiving the return. Please note, shipping and handling charges are non-refundable.

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