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Product Introduction
The GE IC693MDL655 is a versatile input module from the GE Series 90-30 Programmable Logic Controller (PLC) family. This discrete input module is designed to accept both positive and negative logic inputs, allowing it to support a broader range of industrial sensor types and wiring schemes. It provides 32 points of DC input in a compact and reliable format, supporting both sourcing and sinking input devices. Its robust build and integration flexibility make it ideal for various industrial automation tasks across sectors such as manufacturing, water treatment, material handling, and more.
This module is highly regarded for its dual logic compatibility, compact footprint, and seamless integration with the Series 90-30 PLC system, contributing to high-performance control systems that are both scalable and cost-effective.
Product Specifications
| Parameter | Specification |
| Model Number | IC693MDL655 |
| Type | Positive/Negative Logic Input Module |
| Number of Input Points | 32 (4 groups of 8) |
| Input Voltage Range | 12–24 VDC nominal |
| Input Type | Sink or Source (Selectable) |
| Logic Compatibility | Positive and Negative Logic |
| Input Current (typical) | 7 mA per point at 24 VDC |
| Input Voltage Range | 0–30 VDC |
| Isolation | 1500 V RMS (field side to logic side) |
| On/Off Response Time | < 7 ms typical |
| Module Power Consumption | 90 mA from 5 VDC bus |
| Status Indicators | LED per channel |
| Dimensions | 128 x 55 x 105 mm |
| Weight | 0.281 kg |
| Mounting | Standard 90-30 baseplate |
| Environmental Rating | IP20 |
| Operating Temperature | 0°C to 60°C |
| Certifications | UL, CSA, CE |
Product Applications
The IC693MDL655 module is engineered for flexibility and performance, enabling it to be deployed in a wide array of industries:
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Factory Automation: Used to read signals from sensors such as proximity switches, limit switches, and pushbuttons.
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Water & Wastewater Plants: Captures signals from flow switches, level sensors, and fault inputs.
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Material Handling Systems: Interfaces with encoders, jam detectors, and emergency stop buttons.
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Packaging Machinery: Detects input status from safety gates, interlocks, and control buttons.
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Textile and Paper Mills: Reads inputs from web tension sensors and alignment switches.
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Automotive Assembly Lines: Interfaces with control stations, part presence sensors, and pneumatic devices.
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HVAC Control Systems: Gathers signals from pressure switches, flow monitors, and dampers.
Product Advantages
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Supports Positive and Negative Logic: Reduces the need for different module types across installations.
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High-Density Input: Offers 32 discrete input points in a single module, saving rack space.
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LED Status Indicators: Provides per-channel diagnostics and easier maintenance.
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Flexible Integration: Compatible with both sink and source type input devices.
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Fast Response Times: Ensures quick recognition of input signal changes.
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Proven Reliability: Part of the time-tested GE 90-30 Series architecture.
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Compact Form Factor: Ideal for systems where cabinet space is at a premium.
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Wide Input Voltage Tolerance: Works reliably in 12–24 VDC environments.
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Industrial Grade Isolation: Ensures signal integrity and safety through high voltage isolation.
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Certified for Global Use: Approved by CE, UL, and CSA for international deployment.
Recent News Headlines
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“GE 90-30 Series Extended for Modern Industrial Upgrades” – Automation Digest
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“Modular I/O Expansions: GE Enhances Compatibility with Legacy PLCs” – Industrial Tech Review
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“Simplifying Mixed Signal Logic: New Updates for GE Discrete Input Modules” – Control Engineering Today
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“GE’s Automation Solutions Still Shine in the Industrial Legacy Market” – PLC Integration Monthly
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“Field-Tested Reliability: GE IC693 Series Modules Get Extended Lifecycle Support” – Manufacturing Today
FAQ (Frequently Asked Questions)
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What types of sensors can I connect to the IC693MDL655?
You can connect either sourcing (PNP) or sinking (NPN) digital sensors, thanks to its support for both logic types. -
Is this module hot-swappable?
No, the IC693MDL655 is not hot-swappable. Power should be turned off before installing or removing it. -
Can I use this module in outdoor environments?
No, it is designed for indoor industrial environments with an IP20 rating. -
Does it support diagnostic alarms?
The module provides individual LED status for each input, which helps with basic diagnostics, but advanced diagnostics must be handled in the PLC program. -
What rack size is required for installation?
It fits into any standard GE Series 90-30 baseplate that accommodates I/O modules. -
Can I mix positive and negative logic on the same module?
Yes, it supports both, but wiring should be done per group consistently for proper logic operation. -
What’s the typical life expectancy of this module?
With proper environmental conditions, these modules can operate for over 10 years. -
Is there a software configuration needed for the logic selection?
Logic type is determined by wiring; the module does not require software-based logic selection. -
How do I determine if a channel is active?
Each input channel has an LED indicator that lights up when the channel is active. -
What happens if the input voltage exceeds 30 VDC?
Exceeding voltage limits can damage the module. Input voltage must remain within the specified range.
Related Models (Same Series or Function)
| Model | Description | Input Type | Channels |
| IC693MDL645 | DC Input Module 24VDC Positive Logic | Positive Logic | 32 |
| IC693MDL646 | DC Input Module 24VDC Negative Logic | Negative Logic | 32 |
| IC693MDL640 | DC Input Module 24VDC Positive Logic | Positive Logic | 16 |
| IC693MDL734 | Isolated Input Module 24VDC | Positive Logic | 16 |
| IC693MDL748 | AC Input Module 120VAC | AC | 16 |
| IC693MDL732 | High-Density Input 120 VAC | AC | 32 |
| IC693MDL390 | Relay Output Module | Relay Output | 8 |
| IC693MDL340 | DC Output Module 12/24VDC | DC Output | 16 |
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| IC693PWR330 | Power Supply Module 30W | System power support |
| IC693MDL930 | Relay Output Module | Digital output control |
| IC693CMM321 | Serial Communication Module | RS-232/485 interface |
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