{"product_id":"allen-bradley-1756-2ws-dual-channel-weigh-scale-module-hardy","title":"Allen-Bradley 1756-2WS Dual Channel Weigh Scale Module Hardy","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #0056b3;\"\u003eAllen-Bradley 1756-2WS\u003c\/strong\u003e (developed in collaboration with Hardy Process Solutions) is a high-precision, dual-channel weigh scale module designed for direct integration into the flagship ControlLogix PLC platform. This specialized single-slot coprocessor card interfaces directly with strain-gauge load cells, eliminating the need for independent external weight transmitters. Weighing 0.5 kg (1.1 lbs), the module provides high-speed, 16-bit internal resolution weight tracking directly to the controller backplane, making it an ideal solution for fast-acting batching, heavy tank level tracking, and automated filling applications.\u003c\/p\u003e\n\n\u003ch2\u003eCore Technical Advantages\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated Dual-Scale Architecture:\u003c\/strong\u003e Features two completely independent weighing channels capable of driving up to eight 350-ohm load cells (four cells per channel) simultaneously for multi-vessel process management.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdvanced C2® Electronic Calibration:\u003c\/strong\u003e Supports electronic sensor matching, enabling automated system calibration via software parameters without handling dangerous, heavy physical test weights on the factory floor.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWAVESAVER® Mechanical Filtering:\u003c\/strong\u003e Embedded hardware algorithms successfully suppress plant-floor floor vibrations, industrial shock waves, and plant piping resonance to deliver rock-steady weight data under tough conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 15px 0;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f2f2f2;\"\u003e\n      \u003cth style=\"border: 1px solid #dddddd; text-align: left; padding: 8px;\"\u003eParameter\u003c\/th\u003e\n      \u003cth style=\"border: 1px solid #dddddd; text-align: left; padding: 8px;\"\u003eSpecification Details\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eBrand \/ Manufacturer\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eAllen-Bradley (Rockwell Automation) \/ Hardy Instruments\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eModel Part Number\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e1756-2WS (ControlLogix Series)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eGross Weight\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e0.5 kg (1.1 lbs)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eModule Function\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eDual-Channel Weigh Scale Processor\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eLoad Cell Support\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eUp to 4 load cells per channel (8 load cells total capacity)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eSignal Conversion Range\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eminus 0.3 mV to plus 15.3 mV DC bridge inputs\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eBridge Excitation Output\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e5 VDC regulated sensor excitation loop\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eUpdate Conversion Speed\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e50 independent data updates per second\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eInternal Digital Resolution\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e1:8,388,608 internal counts mapping index\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eBackplane Current Draw\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eLess than 1 Amp at 5 VDC controller chassis bus\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eOperating Temperature\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e32 deg F to 140 deg F (0 deg C to 60 deg C)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eInstallation \u0026amp; Engineering Guide\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChassis Placement Protocol:\u003c\/strong\u003e Leveraging hot-swappable architecture, the 0.5 kg hardware frame can be firmly slid into any open slot of a standard ControlLogix chassis. Guide the module along the plastic alignment tracks until the rear circuit contacts lock tightly into the active backplane.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eField Scale Termination:\u003c\/strong\u003e Wire your load cell bridge cables directly into the dedicated removable terminal housing. To ensure total structural noise cancellation through the Wavesaver filter system, keep low-level millivolt lines away from variable frequency drives (VFDs) and high-current conduits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSoftware Data Configuration:\u003c\/strong\u003e Add the 1756-2WS module directly inside Studio 5000 via its custom Add-On Profile (AOP). From the tag configuration screens, engineers can select selectable digital averaging rates (from 1 to 255 samples) and assign Net, Gross, or Rate-of-Change measurement tracks to local control routines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical FAQs\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: Why is the Allen-Bradley 1756-2WS module co-branded with Hardy Instruments?\u003c\/strong\u003e\u003cbr\u003e\nA1: The module was engineered using Hardy's patented process weighing technology—including WAVESAVER and C2 electronic calibration—and packaged into a native ControlLogix card format to let users track raw scale processes directly inside the PLC environment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: How does the module handle real-time material flow calculations?\u003c\/strong\u003e\u003cbr\u003e\nA2: The onboard processor automatically evaluates the weight data change vector over time to generate a direct Rate-of-Change value. This allows the PLC to track instant loss-in-weight or gain-in-weight flow rates without using heavy CPU calculation blocks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: Does the 0.5 kg module framework require external power injection to drive eight load cells?\u003c\/strong\u003e\u003cbr\u003e\nA3: No. The card draws under 1 Amp from the 5 VDC ControlLogix backplane slot to internally generate the regulated 5 VDC bridge excitation voltage needed to power up all eight connected field sensors.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51050296443012,"sku":"1756-2WS","price":176.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/1756-2WS-1.jpg?v=1784127271","url":"https:\/\/www.etowonauto.com\/vi\/products\/allen-bradley-1756-2ws-dual-channel-weigh-scale-module-hardy","provider":"Etowon Auto","version":"1.0","type":"link"}