{"product_id":"allen-bradley-1775-sr-plc-3-i-o-scanner-module","title":"Allen-Bradley 1775-SR PLC-3 I\/O Scanner Module","description":"\u003cp\u003eThe \u003cstrong\u003e1775-SR\u003c\/strong\u003e is a single-slot I\/O scanner module engineered by Allen-Bradley for the PLC-3 control system architecture. Designed to manage high-density field signal processing, this module handles up to 2,048 discrete inputs and 2,048 discrete outputs across four dedicated terminal channels. It features selectable I\/O communication speeds of 57.6 or 115.2 kbaud, enabling fast and deterministic data exchange between local processor logic and remote station chassis.\u003c\/p\u003e\n\u003ch3\u003eSerial Interface and Configuration\u003c\/h3\u003e\n\u003cp\u003eSystem commissioning and serial diagnostics on the \u003cstrong\u003e1775-SR\u003c\/strong\u003e are handled via an integrated 25-pin D-shell connector compatible with RS-232-C signal standards. This interface allows technicians to connect terminal devices or programming tools directly to the scanner for configuration updates and link verification.\u003c\/p\u003e\n\u003ch3\u003eSystem Diagnostics and Environmental Tolerances\u003c\/h3\u003e\n\u003cp\u003eAn onboard self-test indicator provides immediate visual feedback on module status, assisting maintenance staff during power-up routines and routine fault isolation. Built for demanding industrial operations, the module operates reliably between 0 °C and 40 °C in non-condensing relative humidity levels from 5% to 95%, with a storage temperature tolerance spanning -40 °C to 85 °C.\u003c\/p\u003e\n\u003ch3\u003eTechnical Parameters\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\u003e1775-SR\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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003ePLC I\/O Scanner Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003ePLC-3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Capacity\u003c\/td\u003e\n\u003ctd\u003e2048 Inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Capacity\u003c\/td\u003e\n\u003ctd\u003e2048 Outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Channels\u003c\/td\u003e\n\u003ctd\u003e4 Terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Rate\u003c\/td\u003e\n\u003ctd\u003e57.6 kbaud or 115.2 kbaud\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration Interface\u003c\/td\u003e\n\u003ctd\u003e25-pin D-Shell (RS-232-C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostic Indicator\u003c\/td\u003e\n\u003ctd\u003eOnboard Self-Test Indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 deg C to 40 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e5.00 lbs (2.27 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What input and output capacity does the Allen-Bradley 1775-SR support? A: The 1775-SR manages up to 2,048 discrete inputs and 2,048 discrete outputs across its four terminal channels.\u003c\/p\u003e\n\u003cp\u003eQ: What connector type is used for serial configuration on the 1775-SR? A: It uses a 25-pin D-shell connector supporting RS-232-C communication protocols for serial diagnostics and parameter configuration.\u003c\/p\u003e\n\u003cp\u003eQ: What are the supported I\/O channel communication rates for this module? A: The module supports I\/O communication rates of either 57.6 kbaud or 115.2 kbaud.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":53088182108440,"sku":"1775-SR","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/1775-SR5_Cocoai.jpg?v=1793324056","url":"https:\/\/www.innoplcsync.com\/products\/allen-bradley-1775-sr-plc-3-i-o-scanner-module","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}