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Allen Bradley | SLC-500 | 1746-NI8 | Image

Allen Bradley | SLC-500 | 1746-NI8 | Image Allen Bradley | SLC-500 | 1746-NI8 | Image

SKU 2175420  UPC 0799705794016

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The Allen-Bradley 1746-NI8 is an SLC 500 Analog Input Module. This single-slot input module is suited for time-sensitive applications which require accurate and rapid analog signal conversion. The 1746-NI8 is a high-resolution analog input module with high-density components. It has 8 high-impedance input channels which can be wired as single-ended or differential inputs. The input module receives analog data and converts it to digital data which is then stored in the module’s image table. This process allows all modular and fixed SLC 500 processors to access the data.

Up to 8 connections to analog or voltage sensors in any combination can be made. Conversion to digital operation can be done using the switched capacitor and successive approximation.  The configuration process for the 1746-NI8 depends on its class. As a single-slot module it can be either Class 1 or 3. Class 1 configuration uses 8 words for input and 8 words for output; whereas, Class 3 configuration uses 16 words for input and 12 for output.

The 1746-NI8 is able to fit into any slot in either an SLC 500 fixed system expansion chassis or an SLC 500 modular system except the Processor (0) slot. The Self-Locking Tabs secure the module into the chassis slot. The SLC circuitry receives power from the 5V DC backplane supply with a 200mA current consumption, while the analog circuitry receives power from the 24V DC backplane with a 100mA current consumption. It requires no external supply. The 1746-NI8 operates effectively at temperatures ranging from 0-60 degrees Celsius (32-140 degrees Fahrenheit) with a relative humidity ranging from 5-95% noncondensing.

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