Allen Bradley 1794-IB8 | Flex I/O 8-Channel Digital Input Module

Overview

The Allen Bradley 1794-IB8 is a DC-powered 8-channel digital input module from the Flex I/O 1794 series. It connects field devices to the I/O bus efficiently, providing modular and flexible installation for industrial automation systems.

This module supports hot-swapping, allowing insertion or removal under power without restarting the system. Its 24V DC nominal input voltage, combined with 10–31.2V DC operating range, ensures reliable signal detection. The 1794-IB8 offers 16 LED status indicators for each channel, simplifying diagnostics and reducing maintenance time.

Key Features

• 8 current sinking inputs support 24V DC nominal operation.

• On-state voltage range: 10–31.2V DC, off-state current max 1.5 mA.

• Compatible with 1794-TB3 and 1794-TB3S terminal bases.

• Maximum power dissipation 3.5W at 31.2V DC.

• Supports ControlNet, DeviceNet, EtherNet/IP, and Universal Remote I/O communication.

• Hot-swappable design reduces downtime during maintenance.

• 16 yellow LEDs indicate input status for clear diagnostics.

• Operating environment: 0–55°C, 5–95% non-condensing humidity.

• DIN rail mountable for convenient panel installation.

Technical Specifications

Applications

• Industrial Automation: Connects sensors and field devices to Flex I/O networks.

• Modular Control Systems: Provides flexible expansion of digital inputs.

• Diagnostics & Monitoring: LED indicators allow quick channel-level troubleshooting.

• Panel & DIN Rail Installations: Fits easily in control cabinets for space-efficient design.

FAQ

Q: Is the product original and brand new?
A: Yes, the 1794-IB8 is factory-new, original, and available in stock.

Q: How soon can it be shipped?
A: We typically ship within 3 days to 2 weeks depending on order size.

Q: Which logistics carriers are used?
A: We use DHL, FedEx, UPS, and other reliable international carriers.

Q: Can I return it if there is a defect?
A: Yes, we accept returns within 30 days for quality-related issues.

Q: What is the input configuration?
A: The 1794-IB8 features 8 current sinking inputs with 24V DC nominal voltage.

Q: Does it support hot-swapping?
A: Yes, modules can be inserted or removed under power without restarting the system.

Q: What communication protocols are compatible?
A: It supports ControlNet, DeviceNet, EtherNet/IP, and Universal Remote I/O.