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| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Introduction
The GE IC697MDL651 Discrete Input Module is a high-density digital input interface designed specifically for the GE Fanuc Series 90-70 Programmable Logic Controller (PLC) system. This module provides 32 input points with negative logic and operates within a 3–7 VDC input range, offering flexibility and precision in low-voltage digital signal acquisition.
Built for industrial automation and process control applications, the IC697MDL651 enables reliable monitoring of discrete signals such as limit switches, push buttons, relay contacts, and sensor feedback. It includes a selectable input filter—configurable for either 1 ms or 10 ms response time—allowing the user to balance between fast response and noise suppression based on the application’s needs.
The IC697MDL651 ensures excellent signal integrity, high electrical isolation, and strong resistance to industrial noise. It integrates seamlessly with other Series 90-70 modules, CPUs, and communication processors, providing a scalable and durable solution for complex automation systems that demand accuracy and reliability.
Technical Specifications
| Parameter | Description |
|---|---|
| Manufacturer | GE Fanuc (General Electric) |
| Product Model | IC697MDL651 |
| Product Type | Discrete Input Module |
| System Series | GE Fanuc Series 90-70 |
| Input Voltage Range | 3–7 VDC (Nominal) |
| Logic Type | Negative logic (ON = low signal) |
| Number of Input Points | 32 input points |
| Input Grouping | 4 isolated groups of 8 inputs each |
| Input Current (Typical) | 2.0 mA per point at 5V DC |
| Input Impedance | 2.4 kΩ nominal |
| Isolation Voltage | 1500V RMS between groups and logic ground |
| Input Filter | Selectable 1 ms or 10 ms filter |
| Response Time | 1 ms (fast mode), 10 ms (filtered mode) |
| Indicators | One LED per input channel for status indication |
| Backplane Current | 120 mA at 5V DC |
| Power Dissipation | Approximately 2.5 W |
| Operating Temperature | 0°C to +60°C (32°F to 140°F) |
| Storage Temperature | -40°C to +85°C (-40°F to 185°F) |
| Humidity | 5%–95% non-condensing |
| Mounting Method | Rack-mounted (Series 90-70 I/O base) |
| Cooling Method | Natural convection |
| Diagnostics | LED indication, open-circuit and short-circuit detection |
| Dimensions (W × H × D) | 200 × 45 × 145 mm |
| Weight | 0.816 kg |
| Certifications | CE, UL, CSA approved |
Product Applications
The GE IC697MDL651 is widely applied in systems that require accurate detection of low-voltage digital signals. It is engineered to handle industrial control applications where negative logic inputs are standard. Its key applications include:
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Factory Automation Systems: Used to interface with sensors, switches, and interlocks in assembly lines.
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Process Control Systems: Monitors discrete feedback signals in continuous manufacturing processes.
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Power Generation Plants: Detects control signals from auxiliary systems and protection circuits.
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Oil and Gas Facilities: Interfaces with pipeline monitoring sensors and safety instrumentation.
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Water Treatment and Utilities: Collects digital input data from valves, pumps, and relay circuits.
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Building Automation: Integrates into control systems for HVAC, lighting, and alarm monitoring.
Its modular architecture and isolation design make it suitable for both centralized and distributed I/O configurations.
Product Advantages
The IC697MDL651 Discrete Input Module is known for its precision, adaptability, and industrial-grade durability. It provides numerous advantages for system designers and maintenance engineers:
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Selectable Input Filtering: Switchable 1 ms or 10 ms filter for balancing response time and noise suppression.
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Negative Logic Operation: Ideal for systems that interpret low voltage as an active input signal.
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High Channel Density: 32 input channels per module reduce the total number of I/O slots required.
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Isolated Input Groups: Four isolated groups enhance noise immunity and reduce cross-interference.
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Robust Electrical Isolation: 1500V RMS protection between groups and system logic.
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Comprehensive LED Indicators: Each channel features a status LED for easy monitoring and troubleshooting.
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Compact Modular Design: Fits standard GE 90-70 racks, saving cabinet space.
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High Reliability: Built using industrial-grade components for continuous 24/7 operation.
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Flexible System Integration: Fully compatible with other Series 90-70 I/O modules and CPUs.
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Low Power Consumption: Efficient electronic design minimizes heat generation and energy cost.
FAQ
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What type of input logic does the IC697MDL651 support?
The module operates using negative logic, meaning an input is considered “ON” when a low voltage is applied. -
How many input points does this module have?
It provides 32 discrete input channels divided into four isolated groups of eight inputs each. -
What is the input voltage range for proper operation?
The IC697MDL651 operates reliably with input voltages between 3 and 7 VDC. -
What are the available input filter settings?
The input filter can be selected between 1 millisecond (fast mode) and 10 milliseconds (noise filter mode). -
How does the module indicate the status of inputs?
Each input point has an LED indicator on the front panel that lights up when the corresponding input is active. -
What is the typical input current per channel?
Each channel draws approximately 2 mA at 5V DC nominal input. -
How is electrical isolation implemented in this module?
The IC697MDL651 uses optical isolation between input groups and between field wiring and logic circuits, rated at 1500V RMS. -
Can this module be used alongside positive logic modules in the same rack?
Yes, the Series 90-70 system allows mixed logic modules in the same rack, provided proper grounding is maintained. -
What happens when an input signal exceeds the voltage rating?
Inputs are protected by internal current-limiting circuitry to prevent damage under short overvoltage conditions. -
Is the input filter setting configured by hardware or software?
The filter selection is typically made via hardware jumper or software configuration depending on the system setup.
Related or Similar Models
| Model | Description |
|---|---|
| IC697MDL640 | 125V DC, 16-Point Discrete Input Module with positive/negative logic |
| IC697MDL650 | 32-Point 24V DC Positive Logic Input Module |
| IC697MDL653 | 32-Point 24V DC Negative Logic Input Module |
| IC697MDL241 | 12-Point 120/240V AC Output Module with isolation |
| IC697MDL341 | 12-Point 120/240V AC Output Module with high inrush capacity |
| IC697MDL250 | 32-Point 24V DC Output Module for industrial automation systems |
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