{"product_id":"allen-bradley-1746-ws-weigh-scale-module","title":"Allen-Bradley 1746-WS Weigh Scale Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 1746-WS is a specialized weigh scale module engineered for integration within the SLC 500 programmable controller system. This module functions as a dedicated interface, connecting industrial load cells directly to the PLC architecture. By bypassing the requirement for external signal transmitters or conditioning hardware, the 1746-WS simplifies system design for precision weighing tasks, including hopper, tank, vessel, and platform scale monitoring.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSupports up to eight full Wheatstone bridge, strain gauge load sensors per module.\u003c\/li\u003e\n\u003cli\u003eProvides a stable 5V DC excitation voltage for connected sensors.\u003c\/li\u003e\n\u003cli\u003eDelivers a throughput of 20 updates per second for responsive data acquisition.\u003c\/li\u003e\n\u003cli\u003eFeatures two integrated digital TTL-level outputs for control applications.\u003c\/li\u003e\n\u003cli\u003eHigh noise immunity with a common-mode rejection ratio of 110 dB at 60 Hz.\u003c\/li\u003e\n\u003cli\u003eSupports both local and remote operating modes for flexible configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eWeigh Scale Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current Draw\u003c\/td\u003e\n\u003ctd\u003e0.25 Amps @ 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Cell Excitation\u003c\/td\u003e\n\u003ctd\u003e5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Cell Rating\u003c\/td\u003e\n\u003ctd\u003e350 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 2% (Digital Voltmeter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Rate\u003c\/td\u003e\n\u003ctd\u003e20 updates\/sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon-Mode Rejection\u003c\/td\u003e\n\u003ctd\u003e110 dB (at or below 60 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003e2x TTL Digital Outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure the SLC 500 rack power is disconnected before installing or removing the 1746-WS module.\u003c\/li\u003e\n\u003cli\u003eUse shielded, twisted-pair cabling for load cell connections to minimize electromagnetic interference (EMI).\u003c\/li\u003e\n\u003cli\u003eProperly ground the cable shields at the module end to maintain signal integrity.\u003c\/li\u003e\n\u003cli\u003eAvoid routing load cell signal wires alongside high-voltage AC power lines or heavy inductive loads.\u003c\/li\u003e\n\u003cli\u003eVerify that the total resistance of the load cell array is compatible with the 350 Ohm rating.\u003c\/li\u003e\n\u003cli\u003eMaintain adequate clearance around the module within the chassis to ensure proper convective cooling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow many load cells can this module handle?\u003c\/strong\u003e\u003cbr\u003eThe 1746-WS is designed to support up to eight full Wheatstone bridge load cells connected in parallel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this module compatible with all SLC 500 racks?\u003c\/strong\u003e\u003cbr\u003eThe 1746-WS is designed for the standard SLC 500 I\/O chassis; please ensure your specific processor and power supply configuration supports the 250 mA backplane current draw of this module.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module require external signal conditioning?\u003c\/strong\u003e\u003cbr\u003eNo, the 1746-WS acts as a direct interface to the load cells, providing the necessary excitation and signal processing internally.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":48826454180030,"sku":"1746-WS","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/wm_1_65c35948-a080-4565-b717-53ddcd4643f9.jpg?v=1788291005","url":"https:\/\/www.autooiltech.com\/products\/allen-bradley-1746-ws-weigh-scale-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}