{"product_id":"allen-bradley-1794-l34-b-flexlogix-controller","title":"Allen-Bradley 1794-L34\/B FlexLogix Controller","description":"\u003ch2\u003eAllen-Bradley 1794-L34\/B FlexLogix Controller\u003c\/h2\u003e\n\u003cp\u003eConfigured for localized processing and modular I\/O execution in FLEX I\/O control platforms, the \u003cstrong\u003eAllen-Bradley 1794-L34\/B\u003c\/strong\u003e (\u003cstrong\u003e1794-L34\u003c\/strong\u003e FlexLogix Controller) provides direct physical and electrical control processing with Logix architecture support, serial communication, and DIN rail installation capability.\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\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\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\/B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.9 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e199.9 x 110 x 100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e20.4 W @ 24 VDC; 25.5 W @ 19.2 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eController Type\u003c\/td\u003e\n\u003ctd\u003eFlexLogix 5434 Controller\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\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal, 19.2 to 31.2 VDC range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003eMax 0.85 A @ 24 VDC; Max 1.33 A @ 19.2 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexBus Output Current\u003c\/td\u003e\n\u003ctd\u003eMax 653 mA @ 5.1 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSerial Interface\u003c\/td\u003e\n\u003ctd\u003e1 x RS-232 port supporting DF1, DH-485, and ASCII communication\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Slots\u003c\/td\u003e\n\u003ctd\u003e2 x 1788-series communication daughtercard slots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003e35 mm DIN rail or panel mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgramming Software\u003c\/td\u003e\n\u003ctd\u003eRSLogix 5000 \/ Studio 5000 Logix Designer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic Logix Network and Firmware Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe 1794-L34\/B controller uses Logix5000 architecture with tag-based programming and support for Ladder Diagram, Function Block Diagram, Sequential Function Chart, and Structured Text languages. The controller integrates with FLEX I\/O expansion through local and extended-local configurations. Communication daughtercard slots support network interface expansion for EtherNet\/IP, ControlNet, and DeviceNet using compatible 1788-series modules. Firmware compatibility must be verified against the installed Logix software revision before deployment.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 1794-L34\/B support hot-swapping of the controller module?\u003cbr\u003eA: The controller is not specified as a hot-swappable CPU device. Power removal and proper shutdown procedures should be followed before controller replacement or maintenance.\u003c\/p\u003e\n\u003cp\u003eQ: What is the function of the RS-232 port on the 1794-L34\/B?\u003cbr\u003eA: The RS-232 port supports programming functions, DF1 point-to-point communication, DF1 radio modem communication, DH-485 communication, and ASCII device connections.\u003c\/p\u003e\n\u003cp\u003eQ: How is memory backup maintained on this controller?\u003cbr\u003eA: Memory backup is supported through a 1756-BA1 lithium battery.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the controller on a suitable 35 mm DIN rail or approved panel mounting surface. Maintain proper separation between communication wiring, power conductors, and high-noise electrical circuits. Use shielded cables where required by the connected network devices and terminate shields according to the plant grounding standard.\u003c\/p\u003e\n\u003cp\u003eVerify the 24 VDC supply polarity and voltage range before energizing the controller. Confirm that connected FLEX I\/O modules and communication daughtercards match the installed firmware and Logix Designer configuration. Provide adequate enclosure ventilation according to the site environmental requirements.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43778459533402,"sku":"1794-L34\/B","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1794-L34B2.jpg?v=1785744761","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1794-l34-b-flexlogix-controller","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}