Product Description

I. Official Standard Core Parameters

1. Basic Specifications

Model: PI3381 Pulse Input Module

Channel Quantity: 6 isolated pulse inputs, common ground design

Signal Type: Electromagnetic, Active, Collector Open-Circuit Sensor Pulse Signal

Measurement Resolution: 24 bits

Measurement Accuracy: High-frequency signal ±0.01%, Low-frequency signal ±0.1%

Input Frequency Range: 0–20kHz

Pulse Amplitude: 5–24VDC compatible

Communication Architecture: TMR Triple Redundancy Processing, Three-Channel Synchronous Sampling Voting

Data Processing: Gear Frequency Doubling Tracking Algorithm, Precise Speed/Flow Calculation

Isolation Performance: 1500VAC Electrical Isolation between Field Side and System Side

Anti-interference Design: Electromagnetic Shielding, Surge Suppression, Signal Filtering

Hot Swap Function: Supports Online Insertion and Removal, System Operation Not Affected

Power Supply: Backplane 24VDC Power Supply, Voltage Float Range ±10%

Module Power Consumption: Approximately 8 Watts

Operating Temperature Range: -40°C to 70°C

Storage Temperature Range: -55°C to 85°C

Product Certifications: CE, UL, CSA, TÜV SIL3 Authoritative Safety Certification

Installation Method: Compatible with Tricon Host Rack and Expansion Rack Standard I/O Slots

Form Size: 126×124×22mm

Product Weight: Approximately 0.5 Kilograms

2. Panel Indicator Light Interpretation

Green PWR Light: Module Power Supply Status Normal

Green OK Light: Triple Redundancy Sampling Chain Running Stably

Red FAULT Light: Pulse Signal Abnormal, Over-frequency, Break, or Module Fault Alarm

Green CH1–CH6 Light: Corresponding Channel Pulse Signal Acquisition Normal

3. Main Features of the Product

High-Precision Pulse Acquisition: 24-bit High Resolution, ±0.01% Ultra-High Precision, Suitable for Precise Flow/Speed Measurement

Triple Redundancy Guarantee: Three-Channel Independent Sampling, Data Comparison Voting, Single Point Failure Does Not Affect Acquisition

Wide-Band Signal Compatibility: 0–20kHz Covers Industrial Mainstream Pulse Frequencies, Suitable for Various Sensor Types

Flexible Sensor Adaptation: Supports Electromagnetic, Active, and Collector Open-Circuit Three Common Types of Pulse Sensors

Real-Time Speed/Flow Calculation: Built-in Gear Frequency Doubling Algorithm, Direct Output of Engineering Values, Simplifies Upper-Level Calculation

Comprehensive Fault Diagnosis: Channel Break, Signal Over-frequency, Amplitude Abnormal, Link Fault Real-time Detection and Reporting

Industrial Grade Reliability: Wide Temperature, Strong Anti-interference, Isolation Design, Suitable for Harsh Industrial Sites

Seamless Compatibility with Tricon System: TriStation Configuration Software Online Monitoring, Parameter Configuration, Fault Location Convenient