{"product_id":"abb-ax521-1sap250100r0001-s500-analog-i-o-module","title":"ABB AX521 1SAP250100R0001 S500 Analog I\/O Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eABB AX521 (1SAP250100R0001)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as a high-precision analog expansion component within the S500 Distributed Automation I\/O family. This versatile module integrates 4 analog inputs and 4 analog outputs into a single compact footprint, supporting a wide range of signal types including Voltage (U), Current (I), and Resistance Temperature Detectors (RTD). It provides critical interface capabilities for AC500 PLC systems to monitor and control continuous process variables with 13-bit resolution. We supply this module as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e, ensuring your industrial control loops operate with factory-certified accuracy and stability.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp\u003eThe AX521 handles complex analog signals through the following hardware parameters:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAnalog Inputs:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4 Channels (Configurable for Voltage, Current, or RTD)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAnalog Outputs:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4 Channels (Configurable for Voltage or Current)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eResolution:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e13-bit (including sign)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Ranges:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eStandard industrial signals (e.g., 0…10V, 4…20mA)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Configuration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1-wire connection support\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProtection Rating:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIP20 (Housing)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModule Supply Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e24V DC (via Terminal Base)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e67.5 mm (W) x 76 mm (H) x 62 mm (D)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNet Weight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.129 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eEngineering Advantages\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUniversal Signal Flexibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 4 input channels natively support Voltage, Current, and RTD signals. This multi-mode capability allows engineers to mix different sensor types on a single module, reducing the total number of I\/O cards required in the cabinet.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Resolution Process Control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e13-bit resolution ensures precise conversion of analog variables into digital data. This level of detail enables the PLC to execute highly accurate PID control for sensitive pressure, flow, and temperature applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDirect RTD Integration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module processes RTD signals directly without requiring external transmitters. This integration simplifies the wiring architecture, reduces potential points of failure, and lowers the overall hardware cost for temperature monitoring.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized Cabinet Density:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOccupying only 67.5 mm of width, the AX521 delivers 8 total analog points (4 in \/ 4 out). This high density allows for significant I\/O expansion in restricted enclosure spaces, making it ideal for decentralized control boxes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSeamless S500 Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module docks into a standard AC500 Terminal Base, preserving field wiring during maintenance. This modularity facilitates rapid hardware swaps while maintaining the integrity of the 1-wire configuration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFAQs\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the AX521 support 2-wire or 3-wire RTD connections?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe AX521 module itself supports 1-wire internal configuration for the logic side, but external RTD wiring depends on the specific Terminal Base used (e.g., TU515 or TU516). We recommend reviewing the wiring diagram of your Terminal Base to ensure proper compensation for lead resistance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I configure each channel independently?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. You define the signal type (Voltage, Current, or RTD) for each individual channel within the ABB Automation Builder software. This allows you to monitor a pressure sensor (4-20mA) and a temperature sensor (Pt100) on the same module simultaneously.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the benefit of the 13-bit resolution for the outputs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 13-bit resolution allows for very fine increments when controlling proportional valves or frequency drives. This precision prevents \"stepping\" in the process and ensures smooth transitions in automated control loops.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module require an external power supply for the analog loops?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module draws its internal operating power from the 24V DC supply on the Terminal Base. However, depending on your field sensors (e.g., 2-wire transmitters), you may need to provide external loop power according to standard industrial wiring practices.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":52507941339445,"sku":"AX521 1SAP250100R0001","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/DX5221SAP245200R0001_19f15778-f235-49a2-809d-28cd30a39aef.jpg?v=1774861549","url":"https:\/\/www.5gplc.com\/products\/abb-ax521-1sap250100r0001-s500-analog-i-o-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}