{"product_id":"allen-bradley-1794-l34-flexlogix-controller-module","title":"Allen-Bradley 1794-L34 FlexLogix Controller Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1794-L34\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1794-L34\u003c\/strong\u003e FlexLogix Controller, operates as a dedicated hardware component for distributed logic execution and process task management within FLEX I\/O control platforms.\u003c\/p\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\u003e1794-L34\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\u003e2.00 lbs (0.91 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard FlexLogix controller footprint\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\u003e20.4 W at 24 VDC (25.5 W at 19.2 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e19.2 to 31.2 VDC (24 VDC nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e0.85 A at 24 VDC (1.33 A max at 19.2 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Memory\u003c\/td\u003e\n\u003ctd\u003e512 KB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexbus Output Current\u003c\/td\u003e\n\u003ctd\u003e653 mA at 5.1 VDC max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e87 BTU\/hr at 19.2 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e30 VDC (qualification tested to 850 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSerial Interfaces\u003c\/td\u003e\n\u003ctd\u003eRS-232 \/ RS-422 \/ RS-485 (DF1, ASCII, DH-485)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Connector Torque\u003c\/td\u003e\n\u003ctd\u003e0.6 to 0.8 Nm (5 to 7 lb-in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Format\u003c\/td\u003e\n\u003ctd\u003eDIN-rail \/ Panel Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP Deterministic Networks and Firmware Flash Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe 1794-L34 processing engine manages up to 8 user tasks (1 continuous task alongside periodic and event-driven tasks) while communicating across EtherNet\/IP deterministic networks via 1788-series daughtercards. Supporting up to 32 simultaneous CIP connections over network adapters, the processor preserves backplane communication velocity while driving local I\/O expansion via 1794-CE1 or 1794-CE3 bus extender cables. System firmware flash compatibility allows online executive updates to ensure synchronized logic scan timing and seamless integration with Logix-based control routines.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What power supply type is required to satisfy CSA regulatory requirements for the 1794-L34 controller?\u003c\/p\u003e\n\u003cp\u003eA: A Separated Extra Low Voltage (SELV) or Safety Extra Low Voltage (PELV) power supply, such as the Allen-Bradley 1794-PS3 or 1794-PS13, must be used to power the 24 VDC input terminals.\u003c\/p\u003e\n\u003cp\u003eQ: How many local FLEX I\/O modules can the 1794-L34 supply via its Flexbus output?\u003c\/p\u003e\n\u003cp\u003eA: The internal power distribution circuit outputs up to 653 mA at 5.1 VDC across the Flexbus backplane, which directly limits the total number and type of attached FLEX I\/O modules based on their cumulative current draw.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount the controller onto a 35 x 7.5 mm steel DIN rail or directly to an enclosure backpanel using mounting screws.\u003c\/li\u003e\n\u003cli\u003eTerminate 24 VDC primary power wiring using 22 to 14 AWG (0.324 to 2.08 mm sq) stranded copper wire, tightening screw contacts to 0.6 to 0.8 Nm (5 to 7 lb-in).\u003c\/li\u003e\n\u003cli\u003eConnect serial communication interface lines (DF1 or ASCII) using an industrial 1756-CP3 or 1747-CP3 programming cable assembly.\u003c\/li\u003e\n\u003cli\u003eRoute local expansion backplane cables (1794-CE1 or 1794-CE3) away from heavy inductive loads and high-voltage AC lines.\u003c\/li\u003e\n\u003cli\u003eEnsure the controller ground terminal connects directly to a low-impedance master earth ground bus bar.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":48761501810878,"sku":"1794-L34","price":83.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/1794-L34_7a17a2c7-8b9c-4eac-838a-4cb602984b54.png?v=1787197792","url":"https:\/\/www.autooiltech.com\/products\/allen-bradley-1794-l34-flexlogix-controller-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}