{"product_id":"1769-2ws-allen-bradley-weigh-scale-module-new-original-stock","title":"1769-2WS Allen-Bradley Weigh Scale Module | New \u0026 Original Stock","description":"\u003ch2\u003eAllen-Bradley 1769-2WS Compact I\/O Weigh Scale Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1769-2WS\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1769-2WS\u003c\/strong\u003e Dual-Channel Weigh Scale Interface, operates as a dedicated hardware component for strain gauge-based load cell data acquisition within Compact I\/O platforms. Configured for direct physical connection to weigh sensors, the device samples physical force signals and transfers calibrated data registers directly to a CompactLogix or MicroLogix 1500 controller across the system backplane.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1769-2WS\u003c\/td\u003e\n\u003c\/tr\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\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.28 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard 1769 Compact I\/O module profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e5.1 VDC at 2.0 A maximum backplane current draw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDual-Channel Weigh Scale Interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExcitation Voltage\u003c\/td\u003e\n\u003ctd\u003e5 VDC +-1% (Regulated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Cell Support\u003c\/td\u003e\n\u003ctd\u003eUp to eight 350-ohm sensors (4 per channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Resolution\u003c\/td\u003e\n\u003ctd\u003e24-bit internal ADC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Range\u003c\/td\u003e\n\u003ctd\u003e-0.5 mV\/V to +3.5 mV\/V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e1500 VDC (Channel-to-Channel and Channel-to-Backplane)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSample Rate\u003c\/td\u003e\n\u003ctd\u003e10 to 250 samples per second (User-selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration Type\u003c\/td\u003e\n\u003ctd\u003eSoftware-based (Zero, Span, and Tare via PLC logic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication \u0026amp; I\/O Density Scaling\u003c\/h3\u003e\n\u003cp\u003eThe weigh module interfaces with the processor via the native backplane bus communication velocity. It utilizes a 24-bit internal Analog-to-Digital Converter (ADC) to transform millivolt-level strain gauge readings into digital values, managing real-time data streaming without requiring external transmitters. This configuration maximizes local I\/O density scaling by supporting up to four 350-ohm load cells per channel on two fully independent circuits. The 1500 VDC isolation barrier separates field-side sensor loops from the digital logic bus, preventing high-frequency common-mode noise propagation across deterministic networks.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the maximum distance supported between the 1769-2WS module and the connected load cells?\u003c\/p\u003e\n\u003cp\u003eA: The physical distance depends on wire gauge and ambient electrical noise, but standard implementations require 6-wire shielded cable for distances exceeding 15 meters to offset excitation voltage drops through automatic remote sensing.\u003c\/p\u003e\n\u003cp\u003eQ: Can this module operate in an I\/O bank located away from the primary controller?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The module is fully compatible with the 1769-AENTR Ethernet adapter, allowing installation in decentralized remote I\/O configurations across deterministic EtherNet\/IP networks.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSecure the module onto a 35mm DIN rail or panel mount plate, verifying that the adjacent bus levers click completely to lock the physical backplane contacts.\u003c\/li\u003e\n\u003cli\u003eRoute all low-level load cell signal wiring inside dedicated, grounded steel conduits away from high-voltage AC motor lines or variable frequency drive cables.\u003c\/li\u003e\n\u003cli\u003eConnect the load cell cable shield explicitly to the local enclosure subpanel earth terminal, ensuring the shield remains ungrounded and isolated at the load cell body.\u003c\/li\u003e\n\u003cli\u003eVerify that the total current draw of all combined modules in the local bank does not exceed the maximum rating of the 1769 power supply unit.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":42870828040282,"sku":"1769-2WS","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/410.jpg?v=1773017972","url":"https:\/\/www.spareoil.com\/products\/1769-2ws-allen-bradley-weigh-scale-module-new-original-stock","provider":"SpareOil Automation","version":"1.0","type":"link"}