{"product_id":"allen-bradley-1756-ob32-a-controllogix-digital-output-module","title":"Allen-Bradley 1756-OB32\/A ControlLogix Digital Output Module","description":"\u003ch2\u003eAllen-Bradley 1756-OB32\/A ControlLogix Digital Output Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-OB32\/A\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1756-OB32\u003c\/strong\u003e Digital Output Module, operates as a dedicated hardware component for DC sourcing signal execution within ControlLogix I\/O platforms. The module provides 32-point field output switching with 10-31.2 VDC operation, point-level diagnostics, and rack-based communication through the ControlLogix backplane.\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\u003e1756-OB32\/A\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\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDigital Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003eControlLogix Bulletin 1756 I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eDC Sourcing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e32 points (grouped in 16 per group)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e10-31.2 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Current per Output\u003c\/td\u003e\n\u003ctd\u003e0.35 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Current per Module\u003c\/td\u003e\n\u003ctd\u003e10 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003e36-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Mode\u003c\/td\u003e\n\u003ctd\u003eDirect-connect or rack-optimized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostics\u003c\/td\u003e\n\u003ctd\u003ePoint-level fault states and field-side diagnostics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003eUp to 95% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Resistance\u003c\/td\u003e\n\u003ctd\u003e2 m\/s2, 500 Hz maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL, CE, CSA, ATEX, IECEx, KC, FM, C-Tick\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP and ControlLogix Output Architecture\u003c\/h3\u003e\n\u003cp\u003eThe 1756-OB32\/A operates within the ControlLogix I\/O architecture using backplane bus communication for controller-to-module data transfer. The module supports high-density I\/O deployment with 32 DC sourcing output points, allowing output channel allocation across multiple field devices.\u003c\/p\u003e\n\u003cp\u003eFirmware flash compatibility follows the ControlLogix module management structure, enabling controller-based configuration and lifecycle maintenance. Direct-connect and rack-optimized communication modes provide selectable data exchange methods depending on chassis configuration and application requirements.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What output circuit type is supported by the 1756-OB32\/A?\u003cbr\u003eA: The module provides 32 DC sourcing outputs operating within a 10-31.2 VDC field voltage range.\u003c\/p\u003e\n\u003cp\u003eQ: What are the current limitations of each output channel?\u003cbr\u003eA: Each output point supports a maximum current of 0.35 A, with a total module current capacity of 10 A.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module provide field-side diagnostic functions?\u003cbr\u003eA: Yes. The module supports point-level fault states and field-side diagnostics for output circuit monitoring.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1756-OB32\/A module into a compatible ControlLogix chassis slot and verify correct engagement of the module connector before applying field power. Confirm that connected DC loads operate within the specified voltage and current limits.\u003c\/p\u003e\n\u003cp\u003eRoute DC output wiring separately from high-voltage AC conductors and high-noise switching circuits where possible. Apply cable shielding and grounding practices according to the plant electrical installation standard. Verify terminal connections, connector seating, and module configuration parameters before commissioning the output channels.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43623392149594,"sku":"1756-OB32\/A","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1756-OB32.jpg?v=1782457741","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1756-ob32-a-controllogix-digital-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}