GE IC693MDL655 – Series 90-30 32-Point 24VDC Discrete Input Module

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Product Introduction:

The IC693MDL655 is a high-density discrete input module designed by GE Fanuc (Emerson Automation) for the Series 90-30 PLC platform. It interfaces with 24VDC field devices such as sensors, limit switches, pushbuttons, and relays, converting their on/off states into digital signals for PLC processing. The module provides 32 input points with flexible positive/negative logic support, robust electrical isolation, and fast response, making it ideal for high-channel-count industrial automation applications requiring reliable signal acquisition.

Technical Specifications

Manufacturer: GE Fanuc (Emerson Automation)
Model: IC693MDL655
Series: Series 90-30 PLC System
Module Type: Discrete Input Module
Input Channels: 32 points, divided into 4 isolated groups (A, B, C, D) of 8 points each
Input Voltage Range: 0–30VDC (nominal 24VDC)
Logic Type: User-selectable positive (sourcing) or negative (sinking) logic
On-State Voltage: 11.5–30VDC
Off-State Voltage: 0–5VDC
Input Current: 7mA typical per point @24VDC
Response Time: ≤2ms (OFF-ON), ≤7ms (ON-OFF)
Isolation: 1500VAC (1 min) field-to-logic; 250VAC (continuous) between groups
Backplane Power Consumption: 90mA @5VDC
Field Power: Isolated 24VDC available at connectors for sensor power
Connection Type: Two 24-pin male connectors (A/B group, C/D group)
Dimensions (W×H×D): 25mm × 138mm × 46mm
Weight: 0.46kg
Operating Temperature: 0°C to +60°C
Storage Temperature: -40°C to +85°C
Relative Humidity: 5%–95% (non-condensing)
Certifications: CE, cULus, CSA
Protection Class: IP20
Mounting: Installs in any I/O slot of Series 90-30 5-slot/10-slot baseplates

Key Features

High-Density 32-Channel Input: Maximizes I/O capacity in a single slot, reducing system cost and cabinet space.
Dual Logic Compatibility: Supports both positive (NPN) and negative (PNP) logic devices, offering wiring flexibility.
Group-Isolated Design: Four isolated groups prevent cross-group electrical interference and enhance system safety.
Opto-Coupler Isolation: Provides 1500VAC isolation between field and logic sides, protecting PLC from voltage spikes and noise.
Per-Channel LED Indicators: 32 individual LEDs display real-time on/off status for quick debugging and monitoring.