GE IC694MDL660CA-BC – PACSystems RX3i 32-Channel 24VDC Positive/Negative Logic Input Module (Conformal Coated)

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Product Introduction:

The IC694MDL660CA-BC is a conformal-coated, high-density discrete input module for the Emerson PACSystems RX3i PLC, providing 32 optically isolated 24VDC input points. It supports both positive (sourcing) and negative (sinking) logic, with a protective conformal coating that enhances reliability in harsh environments (moisture, dust, chemicals). Designed for industrial automation, it interfaces with standard sensors and switches, delivering robust noise immunity and fast response in demanding applications.

Technical Specifications

Manufacturer: Emerson Automation (formerly GE Intelligent Platforms)
Model: IC694MDL660CA-BC
Series: PACSystems RX3i PLC System
Module Type: Discrete Input Module (Conformal Coated)
Input Points: 32 (optically isolated, conformal coated)
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, RoHS
Dimensions: 110mm × 80mm × 40mm
Weight: 0.42kg

Key Features

Conformal Coating: Protective epoxy coating shields components from moisture, dust, chemicals, and corrosion, extending service life in harsh environments.
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.
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.
Rugged Industrial Design: Withstands vibration, shock, and wide temperature ranges for reliable operation in chemical, food processing, and outdoor applications.

Application Scenarios

Harsh Environment Automation: Monitors sensors in chemical processing, food and beverage (washdown), and outdoor industrial facilities.
Marine & Offshore: Interfaces with limit switches and sensors in marine vessels, oil rigs, and coastal installations.
Water/Wastewater Treatment: Detects level switches, flow sensors, and equipment status in treatment plants with high moisture and chemical exposure.
Mining & Heavy Industry: Monitors machinery status and safety switches in dusty, humid mining environments.

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