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      1746-NI16I

      SLC 500 Analog I/O Module
      In Stock

      Product Information:

      SLC 500 Analog I/O Module. This

      Analog I/O Module has Sixteen (16)

      Inputs configurable for 0 to 20 mA,

      4 to 20 mA, ±20 mA, and 0 to 1 mA.

      This module is a single-slot module.

      Warranty Policy
      We provide 1 year warranty for all remaining parts.
      The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
      Return Notice
      The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
      In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
      Shiping Mode
      Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
      Parts Availability
      Moore automated offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
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      Technical specifications for 1746-NI16I

      • Manufacturer:
        Allen-Bradley
      • Product Category:
        PLC System
      • Spare Part Number:
        1746NI16I
      • Estimated shipping dimensions:
        3.5x13x14.5cm
      • Weight:
        0.24 kg
      • Tariff Code:
        8537101190
      • Country of origin:
        USA
      • Place of shipment:
        Xiamen, Fujian, China
      • Module Type:
        Analog I/O Module
      • Backplane Current (5 Volts):
        125 milliamps
      • Bandwidth:
        6-250 Hertz
      • Thermal Dissipation:
        2.43 Watts
      • Applications:
        Combination 120 Volts AC I/O
      • Input Filter Frequencies:
        6 Hz, 10 Hz, 20 Hz, 40 Hz, 60 Hz, 80 Hz, 100 Hz, 250 Hz
      • Isolation:
        500V ac isolation for 1 second
      • Stock:
        30
      Ask for Quote

      Revisions

      Revision Part #

      Also known as

      1746-NI16I/A
      1746-NI16I Ser A, Series A, Rev A
      Get Parts Quote

      Information

      Overview Manuals Principle Performance & Configuration

      Features:

      • SLC 500 Analog I/O Module
      • This module is a single-slot module
      • Sixteen (16) Inputs configurable for 0 to 20 mA, 4 to 20 mA, ±20 mA, and 0 to 1 mA
      The Allen Bradley 1746-NI16I is a 16-bit resolution, 16-channel analog input module. The module operates with a current range of -20 to 20 mA. Its backplane current is 125 mA at 5 V and 75 mA at 24 V. Maximum backplane power dissipation is 2.425 watts (0.625 watts at 5 V DC and 1.8 watts at 24 V DC). The common-mode voltage relative to the analog common terminal is +/- 10.25 volts.

      The module has a heat dissipation of 2.43 watts and uses a 25-pin D-type AIFM connector. When installing the module into the chassis, it is not necessary to remove the terminal blocks on the module. However, if the terminal blocks are removed, please use the label next to the terminal blocks to identify the module's location and type.

      The 1746-NI16I Allen Bradley SLC 500 Analog I/O Module may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
      Allen Bradley 1746-NI16I SLC 500 Analog I/O Module Manuals(Datasheets), Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
      Analog inputs are used to connect analog process variables to measure their amplitude. They are primarily used for monitoring or as feedback signals in closed-loop control systems to enable manual or automatic control, typically employing a proportional-integral-derivative (PID) control algorithm. Without this feedback signal, automatic control cannot be fully realized.
      This module supports multiple data formats, including engineering units (EU), PID proportional data, and proportional counter data, and can be configured via RSLogix 500 software. Furthermore, it features open-circuit detection to identify sensor or wiring faults.
      Product Lifecycle Notes: As of September 30, 2024, Rockwell Automation has officially discontinued production of the 1746-NI16I. While some inventory may still exist, we recommend that users planning to migrate to newer platforms such as the CompactLogix or ControlLogix series discontinue production as soon as possible.

      Manuals

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      FAQ

      View All Faqs
      • In which specific architectures can the 1746-NI16I achieve high-density signal acquisition?
        Designed specifically for the SLC 500 platform, the 1746-NI16I is a high-density analog interface that accommodates 16 isolated current input channels. By using the 1746-NI16I, engineers can maximize chassis space utilization in complex process control environments, enabling simultaneous monitoring of large arrays of instruments within a single slot.
      • How does the 1746-NI16I achieve electrical isolation to reduce common-mode noise in its 16-channel matrix?
        The 1746-NI16I features robust channel-to-chassis and backplane isolation, effectively isolating sensitive logic circuitry from electrical interference on the field side. This architectural safety feature of the 1746-NI16I prevents ground loop currents and transient surges from compromising signal integrity, ensuring the electrical independence and accuracy of each of the 16 input signals.
      • How does the 1746-NI16I achieve high-fidelity digitization of a 4-20 mA current loop?
        The 1746-NI16I employs an advanced successive approximation A/D converter combined with a programmable digital filter. This enables the 1746-NI16I to provide high-resolution bit depth, converting analog process variables into precise digital signals that the SLC 500 CPU can interpret for PID control and complex data logging.
      • Which specific software parameters in the RSLogix 500 allow for fine-grained configuration of the 1746-NI16I?
        By configuring the bitmask via I/O, the 1746-NI16I allows for individual channel enable or disable and selection of the digital filter frequency. Configuration of the 1746-NI16I also includes setting the data format (engineering units, PID scaling, or proportional counting) to ensure the module output is perfectly synchronized with the mathematical requirements of the application.
      • What are the thermal stability and reliability of the 1746-NI16I under maximum current saturation?
        The 1746-NI16I features an efficient heat dissipation path design that handles the heat generated by 16 operating current loops. Even when operating at the upper limit of the current range at all ports, its thermal management prevents component derating, thus maintaining a stable mean time between failures (MTBF) under harsh industrial temperature gradients.
      • Why is the 1746-NI16I considered an essential component for modernizing legacy SLC 500 systems in chemical or water treatment plants?
        Because the 1746-NI16I offers 12-bit to 16-bit resolution (depending on filter settings), providing greater granularity compared to low-density modules, enabling tighter control loops. Integrating the 1746-NI16I reduces the need for multiple expansion racks, thereby shortening the mean time to repair (MTTR) and lowering the total cost of ownership (TCO) of the control system.
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      Moore Disclaimer: Moore Automated's sales automation equipment and related solutions are intended for industrial automation and business operational efficiency improvement purposes only. Product information, technical parameters, and application cases are for reference only and do not constitute an absolute guarantee of performance for any specific industry, scenario, or final application. Actual equipment performance may vary depending on factors such as the usage environment, system integration method, and maintenance conditions. Users should confirm compatibility and safety based on professional technical assessments. Moore Automated assumes no liability for any direct or indirect losses caused by improper use, modification, or failure to operate according to specifications, to the extent permitted by law.