{"product_id":"rockwell-allen-bradley-1785-l40b-plc-5-40-processor-module","title":"Rockwell Allen Bradley 1785-L40B PLC-5\/40 Processor Module","description":"\u003ch3\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1785-L40B\u003c\/strong\u003e is a \u003cstrong\u003ePLC-5\/40 processor\u003c\/strong\u003e designed for medium to large-scale control systems. It supports multiple communication protocols and flexible I\/O configurations, making it ideal for distributed architectures.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser Memory:\u003c\/strong\u003e 48K words (battery-backed SRAM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax I\/O Capacity:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e2048 points (any mix)\u003c\/li\u003e\n\u003cli\u003e2048 input + 2048 output (complementary mode)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Analog I\/O:\u003c\/strong\u003e 2048 points\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax I\/O Chassis:\u003c\/strong\u003e 61 total\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication Ports:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e4 × DH+\/Remote I\/O (Adapter or Scanner)\u003c\/li\u003e\n\u003cli\u003e1 × RS-232\/RS-422\/RS-423 serial port\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory Expansion Options:\u003c\/strong\u003e 1785-ME16, ME32, ME64, M100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI\/O Scan Time per Rack:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e10 ms @ 57.6 kbps\u003c\/li\u003e\n\u003cli\u003e7 ms @ 115.2 kbps\u003c\/li\u003e\n\u003cli\u003e3 ms @ 230.4 kbps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Current Load:\u003c\/strong\u003e 3.3 A @ 5 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Dissipation:\u003c\/strong\u003e 17.3 W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0°C to +60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 5.1 × 12.7 × 27.9 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.42 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFunctional Highlights\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eModular chassis-based architecture for scalable system design\u003c\/li\u003e\n\u003cli\u003eEEPROM support for secure program retention\u003c\/li\u003e\n\u003cli\u003eKeyswitch mode selector for secure operation\u003c\/li\u003e\n\u003cli\u003eStatus LEDs for diagnostics and runtime monitoring\u003c\/li\u003e\n\u003cli\u003eCompatible with bridges to EtherNet\/IP, ControlNet, and DeviceNet\u003c\/li\u003e\n\u003cli\u003eSupports hot backup and multicast I\/O configurations\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":42429427843139,"sku":"1785-L40B","price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/5810\/3107\/files\/1785-L40B_3.png?v=1752731977","url":"https:\/\/www.plcdcspro.com\/products\/rockwell-allen-bradley-1785-l40b-plc-5-40-processor-module","provider":"PLC DCS Pro Ltd.","version":"1.0","type":"link"}