{"product_id":"allen-bradley-1785-l80e-e-plc-5-80e-ethernet-processor-module","title":"Allen-Bradley 1785-L80E\/E PLC-5\/80E Ethernet Processor Module","description":"\u003ch2\u003eAllen-Bradley 1785-L80E\/E PLC-5\/80E Ethernet Processor Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for high-density control execution in Allen-Bradley 1771 I\/O chassis platforms, the \u003cstrong\u003eAllen-Bradley 1785-L80E\/E\u003c\/strong\u003e (\u003cstrong\u003e1785-L80E\u003c\/strong\u003e Ethernet Processor Module) provides direct physical\/electrical execution. The module manages up to 3,072 I\/O points across 93 total chassis locations and features integrated EtherNet\/IP, Data Highway Plus (DH+), Remote I\/O (RIO), and RS-232\/422\/423 serial channels. Memory capacity supports up to 100K words of battery-backed static RAM for complex ladder logic routines.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eCatalog Suffix\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFeature Description\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1785-L80E\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBase Catalog Number for PLC-5\/80E Ethernet Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries \/ Revision \/E\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHardware Revision Level E indicating specific PCB component revisions and firmware flash compatibility\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003e1785-L80E\/E\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\u003e1.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e51 mm x 279 mm x 191 mm (2.0 in x 11.0 in x 7.5 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e~65 BTU\/hour heat dissipation (~3.6 A @ 5 VDC backplane current load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Memory\u003c\/td\u003e\n\u003ctd\u003e100K words (fixed, battery-backed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax I\/O Capacity\u003c\/td\u003e\n\u003ctd\u003e3,072 digital\/analog points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003eEtherNet\/IP (10\/100 Mbps), DH+, Remote I\/O, RS-232\/422\/423\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Chassis Racks\u003c\/td\u003e\n\u003ctd\u003eUp to 24 local, 93 total chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Scan Time\u003c\/td\u003e\n\u003ctd\u003eMinimum 0.5 ms (local I\/O)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Backup\u003c\/td\u003e\n\u003ctd\u003e1770-XYC or 1785-BAT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL, CE, CSA, C-TICK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control \u0026amp; Network Performance\u003c\/h3\u003e\n\u003cp\u003eThe 1785-L80E\/E leverages backplane bus communication velocity to process large volumes of 1771 I\/O image tables without introducing scan latencies. Dedicated hardware execution allows EtherNet\/IP deterministic networks to coexist with legacy DH+ token-ring topologies, maintaining time-synchronized messaging across legacy and modernized control layers. firmware flash compatibility ensures stable operational execution under high I\/O density scaling and intense interrupt-driven routine execution.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What are the backplane power supply considerations when installing the 1785-L80E\/E into a 1771 chassis?\u003c\/p\u003e\n\u003cp\u003eA: The processor draws approximately 3.6 A at 5 VDC directly from the 1771 backplane power supply. System power sizing must account for this draw alongside the total current requirements of all installed local I\/O modules to prevent voltage drops.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 1785-L80E\/E processor be removed or inserted under power?\u003c\/p\u003e\n\u003cp\u003eA: No. The 1771 chassis architecture does not support Removal and Insertion Under Power (RIUP). Power to the local 1771 chassis must be completely isolated prior to inserting or extracting the processor module to avoid hardware damage or unintended control behavior.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Mounting \u0026amp; Slot Location:\u003c\/strong\u003e Insert the 1785-L80E\/E into the leftmost slot (Slot 0) of the 1771 I\/O chassis. Ensure the module card guides align correctly with the top and bottom chassis tracks before fully seating the backplane edge connector.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding \u0026amp; Shielding Limits:\u003c\/strong\u003e Connect the 1771 chassis ground lug to the main system earth ground using a minimum 14 AWG copper wire. Shielded communication cables (such as Belden 9463 for DH+ and shielded Cat5e for EtherNet\/IP) must have their drain wires grounded at one end only to eliminate ground loop current interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Routing Precautions:\u003c\/strong\u003e Route low-voltage communications cables and AC power wiring in separate conduits or raceways. Maintain a minimum clearance of 200 mm between communication lines and high-current power cables or variable frequency drive outputs to suppress electromagnetic noise coupling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Battery Installation:\u003c\/strong\u003e Verify that the 1770-XYC or 1785-BAT lithium battery is securely connected to the front-panel connector before applying power to guarantee user memory retention during power cycles.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43748483661914,"sku":"1785-L80E\/E","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1785-L80EE2.jpg?v=1785232442","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1785-l80e-e-plc-5-80e-ethernet-processor-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}