Introduction

The Allen Bradley 1791D-8B8P CompactBlock I/O Combination Dock is a compact, versatile solution for industrial digital input/output management. With 8 input channels and 8 output channels in a single module, it reduces panel complexity while delivering reliable, high-speed performance. Perfect for integration into CompactBlock LDX I/O networks, it ensures efficient, streamlined operation in demanding industrial automation applications.

Technical Specifications

Parameter	Specification
Dimensions (L x W x H)	150 × 38 × 48 mm
Weight	0.18 kg (0.40 lb)
Function	Digital Input/Output Combination Module
Channels	8 Digital Input / 8 Digital Output Channels
Operating Voltage	24 VDC (typical)
Operating Temperature	0°C to 60°C
Mounting	CompactBlock LDX I/O Rack
Connectivity	Digital Input/Output to Field Devices
Compliance	CE, Industrial-Grade Standards
Application	CompactBlock Automation, Machine Control, Process Control

Applications

The Allen Bradley 1791D-8B8P CompactBlock I/O Combination Dock is engineered for versatile digital input/output management in compact industrial automation systems. Typical applications include:

Combining input and output channels in a single module for efficient system design
Integration into CompactBlock LDX I/O networks for scalable automation solutions
Connecting sensors, actuators, relays, and indicator devices for process control
Supporting real-time machine monitoring and distributed control systems
Industrial environments where compact, flexible, and reliable I/O management is required

This combination dock ensures streamlined signal handling, reducing panel complexity while maintaining precise control.

Advantages

Compact and Lightweight: 150 × 38 × 48 mm and 0.18 kg (0.40 lb), ideal for space-constrained panels.
Versatile I/O Management: Combines multiple input and output channels for flexible deployment.
Industrial-Grade Reliability: Resistant to vibration, electrical interference, and temperature variations.
Fast Response: Supports rapid signal processing for real-time control.
Seamless Integration: Fully compatible with CompactBlock LDX I/O networks.
Plug-and-Play Installation: Quick setup for system expansion or module replacement.

Technical FAQs

Q: What is the primary function of the 1791D-8B8P?
A: Provides a combination of digital input and output channels in a single module for industrial automation.
Q: How many channels does it support?
A: Typically supports 8 digital input channels and 8 digital output channels.
Q: Can it integrate with other CompactBlock modules?
A: Yes, it is fully compatible with CompactBlock LDX I/O networks.
Q: What types of devices can it interface with?
A: Supports sensors, switches, solenoids, relays, and indicator devices.
Q: What is the operating voltage?
A: Designed for 24 VDC digital input and output signals.
Q: Can it operate in harsh industrial environments?
A: Yes, engineered to withstand vibration, temperature extremes, and electrical noise.
Q: How is it mounted?
A: Easily installs into CompactBlock LDX I/O racks.
Q: Does it support high-speed signal switching?
A: Yes, capable of rapid input/output response for real-time control.
Q: Is configuration software required?
A: Yes, setup and channel configuration are managed via standard CompactBlock programming tools.
Q: What maintenance is required?
A: Minimal; periodic inspection ensures proper signal integrity and operational reliability.