GE IC694MDL655 – PACSystems RX3i 32-Channel 24VDC Sinking Input Module

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Product Introduction: The IC694MDL655 is a high-density discrete input module for the Emerson PACSystems RX3i PLC, providing 32 optically isolated 24VDC input points. It interfaces with standard industrial sensors (proximity, photoelectric, limit switches) and pushbuttons, supporting both positive (sourcing) and negative (sinking) logic for maximum flexibility. Designed for high-speed signal acquisition, it delivers reliable noise immunity and fast response in factory automation and process control systems.

Technical Specifications

Manufacturer: Emerson Automation (formerly GE Intelligent Platforms)
Model: IC694MDL655
Series: PACSystems RX3i PLC System
Module Type: Discrete Input Module
Input Points: 32 (optically isolated)
Input Voltage: 24VDC ±10% (19.2–28.8VDC)
Input Logic: Positive (sourcing) or Negative (sinking), software-selectable
Input Current: 10mA typical per point at 24VDC
Filter Time: 1ms (software-configurable: 0.1–255ms)
Isolation: 1500VAC (1 min) between field and backplane
Backplane Power: 120mA @ 5VDC
Operating Temperature: 0°C to +60°C
Storage Temperature: -40°C to +85°C
Certifications: CE, UL, CSA, Class 1 Div 2
Dimensions: 110mm × 80mm × 40mm
Weight: 0.4kg

Key Features

32 High-Density Inputs: Maximizes I/O capacity in a single RX3i slot, reducing rack space and wiring complexity.
Dual Logic Support: Accepts both positive (NPN) and negative (PNP) logic signals, compatible with global sensor standards.
Optical Isolation: 1500VAC isolation protects against electrical noise, ground loops, and voltage spikes in harsh environments.
Software-Configurable Filter: 1ms default filter (adjustable 0.1–255ms) suppresses contact bounce and electrical interference.
LED Status Indicators: 32 green individual LEDs provide real-time visual status for each input point.
Compact & Cost-Efficient: High channel density reduces system cost and footprint for large I/O applications.
Rugged Construction: Industrial-grade housing withstands vibration and shock for reliable operation in manufacturing and process plants.

Application Scenarios

Factory Automation: Monitors limit switches, proximity sensors, and pushbuttons on assembly lines and material handling systems.
Packaging Machinery: Detects product presence, position, and machine status in food, beverage, and pharmaceutical packaging lines.
Process Control: Interfaces with flow switches, pressure switches, and level sensors in chemical, water treatment, and oil/gas plants.
Building Automation: Monitors door/window sensors, fire alarms, and security system inputs in commercial facilities.

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