{"product_id":"allen-bradley-1746-ni4-slc-500-high-resolution-analog-input-module","title":"Allen Bradley 1746-NI4 SLC 500 High-Resolution Analog Input Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen Bradley 1746-NI4\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as a high-performance analog input interface for the SLC 500 controller platform. This module converts continuous analog signals from field devices—such as pressure transducers and flow meters—into digital values for the PLC processor. By utilizing\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSigma-Delta conversion technology\u003c\/strong\u003e, the 1746-NI4 ensures precise data acquisition for demanding industrial environments. We provide this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand original equipment to guarantee maximum uptime for your control system.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Inputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 Differential Channels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16-Bit (High Resolution)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eConversion Method\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSigma-Delta\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Ranges\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-10 to +10V DC \/ -20 to +20 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eStep Response\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e60 ms\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eVoltage Input Impedance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1 MΩ\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCurrent Input Impedance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e250 Ω\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBackplane Isolation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e710V DC \/ 500V AC (for 1 minute)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCurrent Draw (5V\/24V)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e25 mA \/ 85 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuperior Signal Integrity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 16-bit Sigma-Delta converter filters out high-frequency noise, delivering stable and accurate readings even in electrically \"noisy\" factory environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVersatile Hardware Configuration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module supports both voltage and current signals simultaneously across different channels. This flexibility eliminates the need for multiple specialized modules, saving valuable rack space.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSimplified Troubleshooting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOn-board LED indicators provide immediate visual diagnostics. You can quickly identify \"Power\" status and \"Module Faults\" without connecting a programming terminal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRobust Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 710V DC backplane isolation protects your sensitive SLC 500 processor from field-side electrical surges and ground loops, preventing catastrophic system failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the 1746-NI4 require an external power supply?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module draws its operating power directly from the SLC 500 backplane (25 mA at 5V and 85 mA at 24V). However, ensure your chassis power supply has sufficient capacity to support these requirements alongside your other I\/O modules.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I switch between Voltage and Current modes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou must configure the internal DIP switches located on the circuit board before installation. Always ensure the module is powered down before adjusting these settings to prevent hardware damage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this module with an SLC 5\/01 processor?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the 1746-NI4 maintains compatibility with all SLC 500 processors (5\/01 through 5\/05) as long as the chassis and power supply meet the electrical specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this unit a refurbished or used component?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. We supply this 1746-NI4 as a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New, original Allen Bradley product\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ein its factory packaging to ensure it meets all original manufacturer performance standards.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53459803799736,"sku":"1746-N14","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1746-N14.jpg?v=1778660211","url":"https:\/\/www.globalpetroparts.com\/products\/allen-bradley-1746-ni4-slc-500-high-resolution-analog-input-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}