{"product_id":"allen-bradley-1785-l40b","title":"1785-L40B","description":"\u003ch2\u003eOverview of Allen-Bradley 1785-L40B PLC-5\/40 Processor Module\u003c\/h2\u003e\n\u003cp\u003eThe Allen-Bradley 1785-L40B is a PLC-5\/40 series programmable controller processor designed for medium to large industrial automation systems. It features 48K words of user memory, supports up to 2048 discrete I\/O points, and provides four communication channels configurable for Data Highway Plus (DH+), Remote I\/O, or other protocols. This processor offers enhanced performance and flexibility suitable for complex control applications.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features of 1785-L40B\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e48K words of user SRAM memory with EEPROM program backup.\u003c\/li\u003e\n  \u003cli\u003eSupports a total of 2048 I\/O points (digital and analog).\u003c\/li\u003e\n  \u003cli\u003eFour communication ports configurable for DH+, Remote I\/O, and others.\u003c\/li\u003e\n  \u003cli\u003eFast scan time to support complex and real-time control.\u003c\/li\u003e\n  \u003cli\u003eBattery-backed memory to prevent data loss during power failure.\u003c\/li\u003e\n  \u003cli\u003eCompatible with PLC-5 series I\/O and communication modules.\u003c\/li\u003e\n  \u003cli\u003eSupports multiple chassis and remote I\/O expansions.\u003c\/li\u003e\n  \u003cli\u003eOperating temperature range: 0 to 60 °C (32 to 140 °F).\u003c\/li\u003e\n  \u003cli\u003eIndications via LEDs on the front panel for power, faults, and communication status.\u003c\/li\u003e\n  \u003cli\u003eUL Listed, CE Marked, CSA Certified for industrial use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Memory\u003c\/td\u003e\n\u003ctd\u003e48K words SRAM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum I\/O Points\u003c\/td\u003e\n\u003ctd\u003e2048 digital\/analog I\/O points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Channels\u003c\/td\u003e\n\u003ctd\u003e4 configurable (DH+, Remote I\/O, etc.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003eApproximately 17.3 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current Load\u003c\/td\u003e\n\u003ctd\u003e3.3 Amps at 5 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScan Time\u003c\/td\u003e\n\u003ctd\u003eApproximately 10 milliseconds for full cycle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Port\u003c\/td\u003e\n\u003ctd\u003eRS-232 compatible, 25-pin D connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 °C (32 to 140 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eApproximately 1.5 in x 5.8 in x 10.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eAbout 0.79 kg (1.74 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eApplications \/ Use Cases\u003c\/h2\u003e\n\u003cp\u003eThe 1785-L40B processor is suitable for large and complex industrial automation projects requiring extensive I\/O and multiprotocol communications. It is commonly used in manufacturing plants, process control systems, and automated material handling to ensure scalable, reliable, and high-performance control operations.\u003c\/p\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":47809562181931,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/4671\/7995\/files\/Leadtime_4d9eaf84-3aed-41f9-8311-8f6db285e50c.png?v=1723546369","url":"https:\/\/leadtime.ca\/products\/allen-bradley-1785-l40b","provider":"LEADTIME","version":"1.0","type":"link"}