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Allen Bradley SLC 500 1746sc-INI4I

Product image is representative; revision or series may vary. Contact us to request a specific version.

1746sc-INI4I

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The 1746sc-INI4I from Allen Bradley is an isolated analog input module designed for use within the SLC 500 series. It features four channels specifically for current inputs and supports a variety of voltage ranges suitable for advanced applications.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 1746sc-INI4I

ManufacturerAllen Bradley
Product TypeIsolated Analog Input Module
Product LineSLC 500
Part Number1746sc-INI4I
Weight0.44 lbs (0.20 kg)
Channel Filtering OptionsSelectable for noise rejection or fast update
Accuracy (Voltage Inputs)±0.1% of full scale
Accuracy (Current Inputs)±0.1% of full scale
Channel Update Rate10 ms per channel
Channel-to-Channel Isolation1500 VDC
Input Impedance (Voltage)1 MΩ
Input Impedance (Current)250 Ω
Resolution (Voltage Inputs)16 bits
Resolution (Current Inputs)16 bits
Voltage Input Ranges (INI4VI Variant)0–5 V, 1–5 V, 0–10 V, ±10 V
Current Input0–20 mA, 4–20 mA
Input TypeDifferential Current Inputs
Number of Input Channels4 Isolated Current Inputs

At the core of the 1746sc-INI4I is the function of isolating analog inputs for safe and accurate measurements. This module excels in managing noise and offers flexible filtering options to accommodate different operational requirements. Each of the four input channels is capable of processing differential current inputs, designed to handle dynamic ranges effectively. The module boasts an accuracy rate of ±0.1% for both voltage and current inputs, ensuring reliable performance in signal acquisition.

Designed with practical specifications, the input channels feature a high input impedance of 1 MΩ for voltage inputs, facilitating the connection of a wide array of sensors without affecting their operation. In contrast, current inputs come with an impedance of 250 Ω. It supports numerous voltage input ranges, including 0–5 V, 1–5 V, 0–10 V, and ±10 V. Current input ranges include both 0–20 mA and 4–20 mA, making it versatile enough for various applications.

Notably, the module also achieves a fast channel update rate of 10 ms per channel, allowing for real-time data monitoring and processing. With an isolation capability of 1500 VDC between channels, the 1746sc-INI4I minimizes the risk of signal interference, resulting in enhanced system integrity. The SLC 500 series continues to provide robust solutions for industrial control, and this module supports a wide range of analog applications efficiently.

Revision Part #Also known as
1746sc-INI4I Ser A1746sc-INI4I/A, Series A, Rev A
1746sc-INI4I Ser B1746sc-INI4I/B, Series B, Rev B
1746sc-INI4I Ser C1746sc-INI4I/C, Series C, Rev C
1746sc-INI4I Ser D1746sc-INI4I/D, Series D, Rev D
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