Allen Bradley 1794-IJ2XT Flex I/O-XT Frequency Input Module

Overview

The Allen-Bradley 1794-IJ2XT is a FLEX I/O-XT frequency input module designed for harsh and extreme temperature environments. It is used to capture pulse and frequency signals from industrial sensors, enabling accurate measurement of speed, flow, and position in demanding automation applications.

General Information

Part Number: 1794-IJ2XT

Brand: Allen-Bradley (Rockwell Automation)

Country of Origin: USA

Series: FLEX I/O-XT

Type: Frequency Input Module (Extended Temperature)

Mounting: DIN rail / FLEX I/O terminal base installation

Function: High-speed frequency and pulse signal acquisition

Technology: Ruggedized high-speed counter with backplane communication

Power Specifications

Supply Voltage: 24 V DC (nominal)

Power Consumption: Low power consumption, typically under 5 W

Input Type: Frequency / pulse input signals

Protection: Electrical isolation, surge protection, and noise immunity

Indicators: LED status indicators for channel activity and diagnostics

Communication & Interface

Input Channels: 2-channel frequency inputs

Signal Processing: High-speed pulse counting and frequency measurement

System Integration: Compatible with FLEX I/O-XT adapters for controller communication

Diagnostics: Signal integrity monitoring and fault detection

Response Time: High-speed response suitable for motion and process applications

Environmental

Operating Temperature: −40 to +70 °C

Storage Temperature: −40 to +85 °C

Humidity: 5% to 95% RH, non-condensing

Vibration Resistance: Designed for harsh industrial and outdoor environments

Protection Rating: IP20 (installed within protective enclosure)

Dimensions & Weight

Dimensions (H × W × D): 94 × 46 × 53 mm

Weight: 0.1 kg

Engineered for extreme reliability in harsh industrial environments – ready for fast global delivery!