GE IC697MDL251 Discrete Input Module

Product Introduction

The GE IC697MDL251 Discrete Input Module is a reliable, high-performance digital input module designed for use within the GE Fanuc Series 90-70 PLC system. It provides 16 discrete input points, arranged into four electrically isolated groups of four points each, allowing flexible configuration and secure signal isolation. This modular design ensures enhanced system protection, fault tolerance, and noise immunity—key features in demanding industrial control environments.

The IC697MDL251 is used to interface field input devices such as pushbuttons, limit switches, sensors, and relays with the PLC’s control logic. Its design emphasizes robust isolation, fast input response, and compatibility with both DC and AC input signals, depending on system configuration. The module connects easily through the backplane bus, facilitating seamless integration into Series 90-70 racks without external wiring complications.

Technical Specifications

Product Applications

The GE IC697MDL251 module is widely used in industrial control systems where dependable digital signal acquisition is required. Its isolated input groups make it ideal for applications demanding signal segregation, noise immunity, and safety isolation.

Typical Applications Include:

• Factory Automation: Reading status signals from sensors, switches, and control panels.

• Process Control Systems: Monitoring field equipment and integrating discrete signals into process logic.

• Material Handling Systems: Detecting limit switch positions, photoelectric sensors, and gate controls.

• Energy and Utility Monitoring: Collecting discrete status information from substations and circuit breakers.

• Machine Tool Control: Monitoring interlocks, safety switches, and operational signals.

• Building and HVAC Automation: Gathering input signals from thermostats, dampers, and access controls.

Product Advantages

• High Signal Isolation: Four isolated input groups provide excellent electrical protection and system integrity.

• Enhanced Noise Immunity: Effective in electrically noisy industrial environments.

• Compact and Modular Design: Occupies a single slot while offering 16 input points.

• Status Indication: Individual LED indicators display the state of each input point.

• Reliable Input Filtering: Built-in filtering prevents false triggering from electrical transients.

• Flexible Configuration: Supports varied field wiring and voltage levels.

• Seamless Integration: Fully compatible with Series 90-70 PLC racks and backplane communication.

• Low Power Consumption: Efficient design minimizes load on the system’s power supply.

• Maintenance-Friendly: Diagnostic LEDs and modular design simplify troubleshooting and replacement.

• Industrial Durability: Designed for long-term use in harsh automation environments.

FAQ

1. What is the main function of the IC697MDL251 module?
   It converts discrete field input signals (such as switch or sensor states) into logic-level signals that can be processed by the PLC CPU.

2. How many input points does the module support?
   The module provides a total of 16 input points, organized into four isolated groups of four.

3. What is the benefit of having isolated input groups?
   Isolation prevents electrical interference between input groups and protects the PLC system from voltage spikes or ground loops.

4. What is the nominal operating voltage for this module?
   The IC697MDL251 operates typically at 24 V DC nominal input voltage.

5. How does the module indicate input status?
   Each input point has an LED indicator that lights up when the corresponding input signal is active.

6. Is the module suitable for fast digital signals?
   Yes, with an input response time of 2.5 ms, it is suitable for most industrial digital signal applications.

7. Can this module be used in combination with analog modules?
   Yes, it can be used alongside analog input or output modules within the same Series 90-70 rack.

8. How is the module powered?
   It draws power directly from the Series 90-70 rack backplane, requiring 5 V DC supply.

9. Is there built-in protection against transient voltages?
   Yes, the module includes input filtering and transient suppression for enhanced reliability.

10. What diagnostic features are provided?
    Each input has a status LED, and the module performs internal checks to detect faults within isolated groups.

Related Models (Same Series)

Popular Models from GE Fanuc Series 90-70

FAQ

1. What is the main function of the IC697MDL251 module?
   It converts discrete field input signals (such as switch or sensor states) into logic-level signals that can be processed by the PLC CPU.

2. How many input points does the module support?
   The module provides a total of 16 input points, organized into four isolated groups of four.

3. What is the benefit of having isolated input groups?
   Isolation prevents electrical interference between input groups and protects the PLC system from voltage spikes or ground loops.

4. What is the nominal operating voltage for this module?
   The IC697MDL251 operates typically at 24 V DC nominal input voltage.

5. How does the module indicate input status?
   Each input point has an LED indicator that lights up when the corresponding input signal is active.

6. Is the module suitable for fast digital signals?
   Yes, with an input response time of 2.5 ms, it is suitable for most industrial digital signal applications.

7. Can this module be used in combination with analog modules?
   Yes, it can be used alongside analog input or output modules within the same Series 90-70 rack.

8. How is the module powered?
   It draws power directly from the Series 90-70 rack backplane, requiring 5 V DC supply.

9. Is there built-in protection against transient voltages?
   Yes, the module includes input filtering and transient suppression for enhanced reliability.

10. What diagnostic features are provided?
    Each input has a status LED, and the module performs internal checks to detect faults within isolated groups.

Related Models (Same Series)

Popular Models from GE Fanuc Series 90-70

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