{"product_id":"allen-bradley-1756-ws-controllogix-weigh-scale-module","title":"Allen-Bradley 1756-WS ControlLogix Weigh Scale Module","description":"\u003cp\u003eThe Allen-Bradley \u003cstrong\u003e1756-WS\u003c\/strong\u003e is a single-channel weigh scale module designed for the ControlLogix PAC platform. It interfaces directly with strain-gauge load cells to deliver precise weight measurements for industrial batching, tank weighing, and process automation. Featuring a high-speed conversion rate of 50 updates per second and an exceptionally low non-linearity of 0.0015% of full scale, the \u003cstrong\u003e1756-WS\u003c\/strong\u003e delivers rapid, highly accurate data processing without relying on third-party transmitter hardware.\u003c\/p\u003e\n\u003ch3\u003eLoad Cell Interface \u0026amp; Data Processing\u003c\/h3\u003e\n\u003cp\u003eThe module provides a regulated 5 VDC excitation output to drive load cell configurations (supporting up to four 350-Ohm load cells) with a maximum power draw of 1.15 W. Integrated digital voltmeter functionality offers a resolution accuracy of ±2% of full scale, facilitating diagnostic monitoring directly within the chassis.\u003c\/p\u003e\n\u003ch3\u003eElectrical \u0026amp; Environmental Specs\u003c\/h3\u003e\n\u003cp\u003ePowered via the ControlLogix chassis backplane, the unit draws dual-voltage supply at 5 VDC and 24 VDC. Operating at high efficiency, backplane current demand remains under 1 A at 5 VDC, while backplane power consumption is kept under 5 W at 5 VDC and under 0.3 W at 24 VDC under standard 4-cell loading conditions. The module is rated for industrial environments ranging from 0 to 60 deg C and up to 90% non-condensing relative humidity.\u003c\/p\u003e\n\u003ch3\u003eParameter Table\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1756-WS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eWeigh Scale Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eControlLogix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003eSingle Channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Rate\u003c\/td\u003e\n\u003ctd\u003e50 updates per second\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNon-Linearity\u003c\/td\u003e\n\u003ctd\u003e0.0015% of Full Scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon-Mode Voltage\u003c\/td\u003e\n\u003ctd\u003e2.5 VDC max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Cell Output\u003c\/td\u003e\n\u003ctd\u003e5 VDC (±1.15 W max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Voltmeter Accuracy\u003c\/td\u003e\n\u003ctd\u003e±2% of Full Scale Resolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Input Voltage\u003c\/td\u003e\n\u003ctd\u003e5 VDC \/ 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current Load\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 1 A at 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Power Load\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 5 W at 5 VDC, \u0026lt; 0.3 W at 24 VDC (with 4x 350 Ohm Load Cells)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd\u003e0 to 90% (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApprovals\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.06 lbs (0.48 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003eFrequently Asked Questions\u003c\/p\u003e\n\u003cp\u003eQ: How many load cells can be connected to the 1756-WS module? A: The single-channel module supports up to four 350-Ohm strain-gauge load cells utilizing its internal 5 VDC excitation supply.\u003c\/p\u003e\n\u003cp\u003eQ: What update rate does the 1756-WS provide for weight measurements? A: It converts and updates weight data at a rate of 50 updates per second with a non-linearity rating of 0.0015% of full scale.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":53136376398104,"sku":"1756-WS","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/1756-WS_Cocoai.jpg?v=1793758527","url":"https:\/\/www.innoplcsync.com\/products\/allen-bradley-1756-ws-controllogix-weigh-scale-module","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}