{"product_id":"allen-bradley-1794-ib32-flex-i-o-digital-input-module","title":"Allen-Bradley 1794-IB32 FLEX I\/O Digital Input Module","description":"\u003ch2\u003eAllen-Bradley 1794-IB32 FLEX I\/O Digital Input Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1794-IB32\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1794-IB32\u003c\/strong\u003e FLEX I\/O Digital Input Module, operates as a dedicated hardware component for 32-point current sinking input signal acquisition within the Allen-Bradley FLEX I\/O 1794 system.\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-IB32\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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFLEX I\/O Digital Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003eFLEX I\/O 1794\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e32 current sinking inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e19.2 VDC to 31.2 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum On-State Current\u003c\/td\u003e\n\u003ctd\u003e2 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal On-State Current\u003c\/td\u003e\n\u003ctd\u003e4.1 mA at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum On-State Current\u003c\/td\u003e\n\u003ctd\u003e6 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Off-State Voltage\u003c\/td\u003e\n\u003ctd\u003e5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Off-State Current\u003c\/td\u003e\n\u003ctd\u003e1.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e22.2 kOhms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e50 V continuous, basic insulation, tested at 2121 VDC for 2 s between field side and system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Isolation\u003c\/td\u003e\n\u003ctd\u003eNo isolation between individual channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexBus Current Consumption\u003c\/td\u003e\n\u003ctd\u003e25 mA at 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Power Dissipation\u003c\/td\u003e\n\u003ctd\u003e6.0 W at 31.2 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Thermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e20.47 BTU\/hr at 31.2 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Terminal Base Units\u003c\/td\u003e\n\u003ctd\u003e1794-TB32, 1794-TB32S, 1794-TB62DS, 1794-TB62EXD4X15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Side Indicators\u003c\/td\u003e\n\u003ctd\u003e32 yellow status indicators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal DC Supply Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e6.9 cm x 9.4 cm x 9.4 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP and FLEX I\/O Backplane Integration\u003c\/h3\u003e\n\u003cp\u003eThe 1794-IB32 is designed for integration with the FLEX I\/O 1794 platform through the FlexBus communication interface. The module transfers digital field input states through the remote I\/O architecture while maintaining a FlexBus current requirement of 25 mA at 5 VDC. The module supports distributed I\/O configurations where deterministic data exchange between controllers and field devices is required.\u003c\/p\u003e\n\u003cp\u003eThe module supports I\/O density scaling through its 32-channel input configuration, allowing compact installation of multiple discrete input points within a FLEX I\/O assembly. Firmware compatibility and adapter configuration must match the installed FLEX I\/O network architecture.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 1794-IB32 provide isolation between individual input channels?\u003cbr\u003eA: No. The module provides isolation between the field side and system side, but individual input channels do not have channel-to-channel isolation.\u003c\/p\u003e\n\u003cp\u003eQ: What terminal bases are compatible with the 1794-IB32 module?\u003cbr\u003eA: The supported terminal base units include 1794-TB32, 1794-TB32S, 1794-TB62DS, and 1794-TB62EXD4X15.\u003c\/p\u003e\n\u003cp\u003eQ: What is the FlexBus current requirement of the module?\u003cbr\u003eA: The module requires 25 mA at 5 VDC from the FlexBus interface.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1794-IB32 on the specified FLEX I\/O terminal base unit and verify correct mechanical engagement before applying field power.\u003c\/p\u003e\n\u003cp\u003eConnect field wiring according to the terminal base wiring arrangement. Maintain separation between digital input signal conductors and high-current switching or motor power cables to reduce electrical interference.\u003c\/p\u003e\n\u003cp\u003eUse appropriate grounding practices for the control cabinet, including correct shield termination methods where shielded field cables are installed. Confirm that the external 24 VDC supply polarity and voltage level match the module requirements before energizing the circuit.\u003c\/p\u003e\n\u003cp\u003eVerify that all field devices connected to the current sinking inputs operate within the specified input voltage and current limits. Check status indicators after installation to confirm correct field signal detection.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43768107270234,"sku":"1794-IB32","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1794-IB322.jpg?v=1785479352","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1794-ib32-flex-i-o-digital-input-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}