{"product_id":"1794-asb-allen-bradley-flex-i-o-remote-i-o-adapter","title":"1794-ASB Allen-Bradley FLEX I\/O Remote I\/O Adapter","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1794-ASB\u003c\/strong\u003e serves as the primary \u003cstrong\u003e1794-ASB\u003c\/strong\u003e Remote I\/O Adaptor utilized to execute remote I\/O data processing across FLEX I\/O platforms. The device operates as a hardware gateway that interfaces an external Universal Remote I\/O network link with the local cluster backplane. It manages serial data block transfers, converting master controller commands into discrete logic signals for up to 8 attached I\/O sub-modules without introducing communication cycle latency into the hardware system.\u003c\/p\u003e\n\u003ch3\u003eFunctional Matrix Allocation\u003c\/h3\u003e\n\u003cp\u003eThe product designation sequence maps specific engineering configurations. The \"1794\" code dictates structural and interface alignment with standard distributed terminal blocks. The \"ASB\" suffix identifies the internal architecture as a remote I\/O link processor utilizing a multi-pin logic bus structure. This adapter layout handles synchronous physical word configurations over 3-wire shielded media configurations, routing signals across standard modular backplane slots.\u003c\/p\u003e\n\u003ch3\u003ePhysical and Electrical Parameters\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-ASB\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\u003e0.18 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e6.7x8.5x6.8cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eSupported by external 24 VDC voltage supply loop\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Protocol\u003c\/td\u003e\n\u003ctd\u003eUniversal Remote I\/O (RIO)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Capacity\u003c\/td\u003e\n\u003ctd\u003eMaximum 8 I\/O module slots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Protection\u003c\/td\u003e\n\u003ctd\u003eIP20 open-style architecture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAssembly Mounting\u003c\/td\u003e\n\u003ctd\u003eSymmetrical DIN rail tracking alignment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic Backplane Communications\u003c\/h3\u003e\n\u003cp\u003eThis interface component regulates system data integrity by enforcing rigid I\/O density scaling profiles across the internal connections. The device supports local backplane bus communication velocity Licences controls to prevent collision bottlenecks when high-density configurations are requested. Digital signal mapping tracks direct memory image updates, verifying that sub-module arrays operate within specific firmware flash compatibility matrices while matching hardware baud rates across the network trunk line.\u003c\/p\u003e\n\u003ch3\u003eShipment Packing Array\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 1794-ASB remote network adapter block\u003c\/li\u003e\n\u003cli\u003e1 x physical terminal connection document\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWiring and Shielding Directives\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDIN Rail Retention Interlock\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAngle the top slot of the industrial housing over the upper flange of the DIN rail, then drive the lower enclosure edge downward until the locking claw secures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNetwork Media Signal Termination\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSecure the blue, clear, and bare shield wires of the remote I\/O cable into the designated 3-pin termination socket, using identical color codes across all active nodes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTerminal Module Serial Coupling\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAlign the side interlocking slots of the adapter housing with the initial terminal base plate, pushing horizontally until the internal backplane pins interface completely.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Conductor Feed Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eConnect the positive and negative leads from an external 24 VDC power supply to the input terminals, checking that torque limits match structural specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWhat specific engineering constraints limit the hot-swapping capacity of this communication interface block?\u003c\/p\u003e\n\u003cp\u003eThe module cannot be detached while the backplane power loop is active. Removing the unit breaks the network loop, halting processing for all connected modules.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow are the network baud rate parameters calibrated on this specific remote interface hardware?\u003c\/p\u003e\n\u003cp\u003eBaud rate settings are defined mechanically using the DIP switch bank situated on the enclosure surface before the hardware is fastened to the mounting track.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat failure signature indicates a communication disconnect between the adapter and the master processor?\u003c\/p\u003e\n\u003cp\u003eA network link failure causes the adapter status indicator to flash red, forcing the localized discrete output circuits to shift into their programmed safe states.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes the 0.18 kg weight specification include the field wiring terminal plate or adjacent modules?\u003c\/p\u003e\n\u003cp\u003eNo. The weight represents the standalone network adapter core module, excluding the terminal bases, field wires, or separate network terminator resistors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat procedure resolves an address configuration conflict between duplicate nodes on the same network run?\u003c\/p\u003e\n\u003cp\u003eThe system loop power must be disconnected, the rotary or DIP switches adjusted to an unassigned node address, and the 24 VDC supply re-applied to reset the block.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow does the hardware structure maintain data synchronization when analog and digital modules are mixed?\u003c\/p\u003e\n\u003cp\u003eThe internal micro-sequencer executes synchronous backplane bus scans, organizing data blocks into a single image frame to manage mixed I\/O configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs an external terminating resistor required at the network interface connections of this module?\u003c\/p\u003e\n\u003cp\u003eYes. If the adapter serves as the final physical node on the Universal Remote I\/O line, an external resistor must be secured across the signaling terminals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan this unit function within high-humidity environments without a secondary secondary enclosure box?\u003c\/p\u003e\n\u003cp\u003eNo. The open-style IP20 housing lacks moisture seals, requiring a protective industrial enclosure to prevent condensation from causing electrical degradation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066456101037,"sku":"1794-ASB","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1794-ASB_13.jpg?v=1784508053","url":"https:\/\/www.maxwellplc.com\/ru\/products\/1794-asb-allen-bradley-flex-i-o-remote-i-o-adapter","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}