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FIELD CONTROL · DISCRETE I/O
IC670MDL644
24 VDC Positive / Negative Fast Input Module
A compact Field Control input module providing a single group of 16 discrete inputs that can be driven by either positive or negative logic.
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01
24 VDC
Rated voltage
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0–30 VDC
Input voltage range
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16 Points
Grouped discrete inputs
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25 μs
Typical ON response
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Technical Details
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◉ Logic Compatibility
The input design supports both positive and negative logic. For positive logic, the ON-state voltage is +15 V to +30 V. For negative logic, the ON-state voltage is −15 V to −30 V. |
◉ Power & Status
The module receives operating power through the Bus Interface Unit. An external 24 VDC supply is required for the field input devices. Individual LEDs show input states, while the PWR LED indicates field and backplane power. |
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Electrical Protection & Isolation
User input to logic isolation and user input to frame-ground isolation are rated at 250 VAC continuous, with 1500 VAC for 1 minute. Individual points within the same group are not isolated from one another. |
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Where IC670MDL644 Fits
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Field Signals
The 16-point input structure is intended for discrete field signals connected to the Field Control distributed I/O environment. |
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Fast Response
The fast input response makes the module appropriate when the control system must capture discrete transitions with short response intervals. |
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Maintenance Search
A replacement search commonly begins when a Field Control input point stops changing state, input LEDs do not match the field device, or a fast discrete signal is no longer captured correctly. |
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Why a failed input module matters
When an input channel no longer reflects the actual field state, the host system may receive an incorrect or missing discrete signal. Depending on the control sequence, that can prevent an expected machine step, interlock, permissive, or status transition from being processed. For equipment where the affected input participates in the operating sequence, replacement time can therefore directly influence downtime. |
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20 Years of Industrial Automation Supply
Supporting customers with hard-to-find automation parts, responsive communication and practical supply solutions.
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CUSTOMER CONNECTION
Built Around Real Industrial Needs
From replacement planning to urgent component sourcing, our team works closely with customers to keep automation projects moving. |
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Frequently Asked Questions
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01. What type of input module is IC670MDL644?
It is a 24 VDC positive/negative logic fast discrete input module with 16 grouped input points for the Field Control distributed I/O environment.
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02. Can IC670MDL644 work with both positive and negative logic?
Yes. The input design supports positive logic and negative logic. Positive-logic ON voltage is +15 V to +30 V, while negative-logic ON voltage is −15 V to −30 V.
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03. How many discrete signals can the module handle?
The module provides one group of 16 discrete inputs, represented as 16 bits or two bytes of discrete input data.
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04. What is the response time of IC670MDL644?
The ON response is 25 μs typical and 60 μs maximum. The OFF response is 100 μs typical and 150 μs maximum.
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05. Does the module require an external field power supply?
Yes. The module receives operating power through the Bus Interface Unit, while an external 24 VDC supply is required for the field input devices.
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Delivery: 3–5 days
Warranty: 12 months
Packaging: New
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After-Sales Support
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AFTER-SALES
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& Replacement |
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