{"product_id":"allen-bradley-1785-lt-b-1785-lt-series-b-plc-5-processor-module","title":"Module processeur PLC-5 série B Allen-Bradley 1785-LT\/B 1785-LT","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1785-LT\/B\u003c\/strong\u003e is a programmable logic controller hardware component that functions specifically as a PLC 5\/15 processor module within the classic PLC-5 hardware line. It serves as the primary control unit to execute user application ladder logic, govern localized signal scanning, and coordinate peripheral network routing. For processing physical parameters, this processor provides simultaneous architecture expansion that manages up to four local I\/O chassis racks alongside up to three universal remote I\/O link channels. Built-in standalone communication interfaces include a specialized Remote I\/O scanner adapter combined with a Data Highway Plus (DH+) station port, facilitating direct parallel data transmission to operator workstations, supervisory automation interfaces, and third-party interface systems without interrupting primary control cycles.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDual integrated network pathways containing an independent local or remote I\/O scanning link plus a separate Data Highway Plus (DH+) industrial channel.\u003c\/li\u003e\n\u003cli\u003eDual-option hardware configuration switches permitting user control over physical I\/O output states during active communication fault conditions.\u003c\/li\u003e\n\u003cli\u003eMulti-slot physical addressing capacity supporting 2-slot, 1-slot, and 1\/2-slot input\/output group placement mapping.\u003c\/li\u003e\n\u003cli\u003eSlide-in backplane alignment structural base designed for installation inside the left-most slot position of standard 1771-I\/O chassis enclosures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-reliability automation control loop execution in factory manufacturing environments.\u003c\/li\u003e\n\u003cli\u003eCentralized multi-chassis industrial system expansion via remote and local input\/output link networks.\u003c\/li\u003e\n\u003cli\u003eDistributed plant automation cell integration using Data Highway Plus architectures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical 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\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1785-LT\/B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePLC-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProcessor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupported Local I\/O\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 4 Racks (1 resident rack)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupported Remote I\/O\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 3 Remote I\/O racks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eI\/O Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e512 I\/O; 512 inputs and 512 outputs using 16 or 32-pt modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Total I\/O\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3072 (any mix) or 3072 in + 3072 out (complementary)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnalog I\/O Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e512\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Analog I\/O\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3072\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEmbedded RAM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6K Words SRAM (expandable up to 14K Words)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptional Memory Modules\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4K RAM expansion (1785-MR); 8K RAM expansion (1785-MS); 8K EEPROM (1785-MJ)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBackup Battery Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1770-XY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgram Scan Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 ms\/K words (bit logic); 8 ms\/K words (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eI\/O Scan Time Per Rack\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 ms at 57.6 kbits\/s, 7 ms at 115.2 kbits\/s, 3 ms at 230.4 mbits\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax I\/O Chassis Total\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e93\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Universal Remote Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 max. per I\/O link\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBuilt-In Ports\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1x Standalone Scanner (local and remote I\/O); 1x DH+; 1x RS-232-C\/422-A\/423-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Coprocessor Port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHardware Addressing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2-slot, 1-slot, 1\/2-slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChassis Location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1771-I\/O chassis, left-most slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMechanical Keying Position\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBetween 40 and 42; between 54 and 56\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.06 lbs (1.39 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 60 degC (32 to 140 Fahrenheit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC (-40 to 185 Fahrenheit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5% to 95% noncondensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Shock\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 g (3 pulses, 11 ms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNonoperating Shock\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 g (3 pulses, 11 ms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eESD Immunity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 kV contact discharges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Slot Placement:\u003c\/strong\u003e Slot the module strictly into the left-most dedicated processor position of the 1771-I\/O chassis frame, ensuring the guide keys align smoothly with backplane markers between slots 40\/42 and 54\/56.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFault Mode Switch Setup:\u003c\/strong\u003e Adjust configuration Switch 1 to the OFF position prior to startup to force the local chassis to safely strip away output energy if a fatal processing or communication error occurs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESD Shielding Safety:\u003c\/strong\u003e Ensure full connection to a reliable grounding strap during manual deployment or component adjustments to block static path discharges into the internal processing logic boards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEN 50081-2 EMC - Generic Emission Standard for operation in a Part 2 - Industrial Environment\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695186964843,"sku":"1785-LT\/B","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1785-lt-b-prosessor-module-yxvvpuggpfr_adcb9143-f4b0-44fc-98cc-a93b99d4b32f.jpg?v=1766114491","url":"https:\/\/www.plcprotech.com\/fr\/products\/allen-bradley-1785-lt-b-1785-lt-series-b-plc-5-processor-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}