{"product_id":"1794-ib16xob16p-allen-bradley-flex-i-o-digital-combination-module","title":"1794-IB16XOB16P Allen-Bradley FLEX I\/O Digital Combination Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1794-IB16XOB16P\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1794-IB16XOB16P\u003c\/strong\u003e Flex 32 Point Digital Combination Module, operates as a dedicated hardware component for concurrent discrete input sensing and output actuation within FLEX I\/O platforms. The assembly functions as a high-density, mixed-mode module interfacing directly with 24 VDC field equipment. It routes 16 sinking binary inputs and 16 electronically protected sourcing outputs through a standardized terminal base interface to the remote or local rack controller backplane.\u003c\/p\u003e\n\u003ch3\u003eHardware Designation Profile\u003c\/h3\u003e\n\u003cp\u003eThe alphanumeric code designates the physical density and internal electronics configuration of the combination board. The identifier \"1794\" enforces mechanical and signal compliance with the standard industrial FLEX I\/O chassis matrix. The segment \"IB16\" defines 16 independent channels configured for direct current sinking operations, while the following string \"XOB16P\" specifies 16 sourcing direct current output channels equipped with integrated electronic short-circuit protection.\u003c\/p\u003e\n\u003ch3\u003eTechnical 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-IB16XOB16P\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\u003e0.1 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e9.2x4.5x5.5 cm\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\u003eDetermined by external 24 VDC source and internal Flexbus current draw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Count\u003c\/td\u003e\n\u003ctd\u003e32 points (16 sinking inputs \/ 16 sourcing outputs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Category\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Scheme\u003c\/td\u003e\n\u003ctd\u003eElectronic short-circuit overload protection on sourcing outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eOpen style IP20 architecture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Orientation\u003c\/td\u003e\n\u003ctd\u003eHorizontal or vertical DIN rail mounting alignment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDensity Scaling and Firmware Verification\u003c\/h3\u003e\n\u003cp\u003eThe electronic architecture regulates synchronous signal processing across combined input and output matrices without degrading network data updates. The internal microcode functions within defined backplane bus communication velocity Licences profiles, preventing packet collision across the rack infrastructure. This hardware configuration permits multi-channel I\/O density scaling inside localized control cells while matching factory electronic keying rules for firmware flash compatibility.\u003c\/p\u003e\n\u003ch3\u003eShipping Kit Composition\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 1794-IB16XOB16P combination I\/O module\u003c\/li\u003e\n\u003cli\u003e1 x factory electrical installation reference guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSubstructure Mounting \u0026amp; Shielding Directives\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDIN Rail Engagement Lock\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHook the upper retention slot of the IP20 housing over the top flange of the DIN rail, then snap the lower edge downward until the spring-loaded lock fastens onto the steel profile.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTerminal Base Insertion Path\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAlign the structural alignment keyways on the bottom of the module with the registration pin of the terminal base unit, pushing vertically until the multi-pin connector fully mates.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDC Power and Signal Routing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStrip the 24 VDC field wires and connect the sinking input leads and sourcing output leads to the designated terminal base channels, isolating the positive rail for the outputs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEquipotential Ground Path Verification\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEstablish a direct low-impedance copper ground connection from the DIN rail track to the central cabinet enclosure grounding plate to eliminate common-mode high-frequency noise.\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 boundaries govern the hot-swapping or RIUP capabilities of this combination module?\u003c\/p\u003e\n\u003cp\u003eRemoval and Insertion Under Power is permitted when using a compatible terminal base, but field-side 24 VDC power loops must be physically isolated first to prevent electrical arcing across contacts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow does the integrated electronic protection react during a downstream short-circuit on an output point?\u003c\/p\u003e\n\u003cp\u003eThe electronic short-circuit protection instantly trips the affected channel to a safe, non-conducting state, lighting the localized fault indicator and setting an internal data status flag.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes this mixed-mode configuration allow the grouping of sinking inputs and sourcing outputs on a single common line?\u003c\/p\u003e\n\u003cp\u003eNo. Sinking inputs require the field device to switch the positive leg to the module, whereas sourcing outputs actively drive current out from the positive rail to the field load.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat signature is recorded by the primary controller if the internal Flexbus logic current exceeds current limits?\u003c\/p\u003e\n\u003cp\u003eThe system interface drops the module connection, logs a slot communication timeout fault inside the processor logic matrix, and forces all 16 sourcing outputs to an unpowered state.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat procedure clears a latched electronic protection fault state after fixing a shorted field device?\u003c\/p\u003e\n\u003cp\u003eThe external field short-circuit must be fully eliminated, and then the channel must be reset either through a programmatic controller command toggle or by cycling the module field power.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow does maximum simultaneous channel activation impact the thermal dissipation limits of the IP20 chassis?\u003c\/p\u003e\n\u003cp\u003eRunning all 32 points at continuous maximum load increases thermal output, requiring strict enforcement of the 55 deg C temperature limit and minimum physical layout clearances.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan this module be used with AC voltage field instruments if interposing terminals are absent?\u003c\/p\u003e\n\u003cp\u003eNo. The module internal optocouplers and transistors operate exclusively on direct current 24 VDC loops; feeding alternating current into the module will cause catastrophic circuit failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow is firmware flash compatibility handled between different assembly revisions of this module?\u003c\/p\u003e\n\u003cp\u003eThe device features hardware-defined logic routing, meaning software compatibility is maintained by adjusting the electronic keying parameters within the main automation software configuration tree.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066456527021,"sku":"1794-IB16XOB16P","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1794-IB16XOB16P_14.jpg?v=1784442689","url":"https:\/\/www.maxwellplc.com\/ga\/products\/1794-ib16xob16p-allen-bradley-flex-i-o-digital-combination-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}