{"product_id":"allen-bradley-1756-0f8-analog-output-module","title":"Allen Bradley 1756-0F8 Analog Output Module","description":"\u003ch1\u003eAllen-Bradley 1756-OF8 ControlLogix Analog Output Module\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-OF8\u003c\/strong\u003e is an 8-channel analog output module for the ControlLogix platform. It provides voltage and current outputs for driving variable speed drives, control valves, recorders, and other analog field devices. The module supports multiple output ranges, high-resolution signal generation, and direct integration into a ControlLogix chassis while occupying a single slot.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable class=\"___1vyiefv f1ddd56o f16vktn6 f1ahpp82 f11qra4b f1uinfot fibjyge fvueend f9yszdx f1fu4s3n f3l3pb3 f10ghnd0 f8fmt76 fjvbh62 f1qrqxae f1vw5qpk fc02sbz fxawf59 fymf513 f1aoyrul f1el8yx3 f1pymoxg f1ofu761 fe6itr f7coize f1794535 f1o0pw0q fbjjl9v fk1v6el f16pyhcb f1ixlhx9 f12zef0i flu5r5u f19haqzy f1owmcxx f1oddm8q f1004tna fcoaxci fh0ee9u f15v23i2 f1dmj53 f1r1gcv9 f14z1veh ffufd3x f1ypplot f1660cg\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1756-OF8\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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eAnalog Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e8 single-ended analog output channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Isolation\u003c\/td\u003e\n\u003ctd\u003eNo individual channel isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Output Range\u003c\/td\u003e\n\u003ctd\u003e-10 VDC to +10 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Output Range\u003c\/td\u003e\n\u003ctd\u003e0-20 mA, 4-20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e15-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Resolution\u003c\/td\u003e\n\u003ctd\u003eApprox. 650 nA per bit over 21 mA range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Resolution\u003c\/td\u003e\n\u003ctd\u003eApprox. 320 µV per bit over 10.4 V range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e150 mA at 5.1 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e210 mA at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Power\u003c\/td\u003e\n\u003ctd\u003e5.8 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e16.78 BTU\/hr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis Slots Required\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (H x W x D)\u003c\/td\u003e\n\u003ctd\u003e3.8 cm x 15.2 cm x 14.0 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAnalog Output Capability\u003c\/h3\u003e\n\u003cp\u003eThe module provides eight independently configurable analog outputs that can be assigned for either voltage or current operation. Supported voltage outputs include -10 VDC to +10 VDC, while current outputs support both 0-20 mA and the widely used 4-20 mA control standard.\u003c\/p\u003e\n\u003cp\u003eThis flexibility allows a single module type to interface with a wide range of industrial devices, including actuators, drives, positioners, and process control equipment.\u003c\/p\u003e\n\u003ch3\u003eResolution and Signal Accuracy\u003c\/h3\u003e\n\u003cp\u003eThe 15-bit digital-to-analog conversion architecture provides fine output granularity for control applications that require smooth signal changes and precise setpoint control.\u003c\/p\u003e\n\u003cp\u003eFor current outputs, the effective resolution is approximately 650 nA per bit across the 21 mA operating span. For voltage outputs, the resolution is approximately 320 µV per bit across a 10.4 V range.\u003c\/p\u003e\n\u003ch3\u003eControlLogix Integration\u003c\/h3\u003e\n\u003cp\u003eThe 1756-OF8 installs directly into a standard ControlLogix chassis and occupies a single slot. Power is supplied through the ControlLogix backplane, eliminating the need for a dedicated module power source.\u003c\/p\u003e\n\u003cp\u003eThe module draws 150 mA from the 5.1 VDC backplane supply and 210 mA from the 24 VDC backplane supply, resulting in a total backplane power consumption of 5.8 W.\u003c\/p\u003e\n\u003ch3\u003eChannel Isolation Considerations\u003c\/h3\u003e\n\u003cp\u003eThe standard 1756-OF8 does not provide individual channel-to-channel isolation. Applications requiring isolated analog outputs should consider models specifically designed with isolated channels, such as the 1756-OF8I.\u003c\/p\u003e\n\u003cp\u003eWhen connecting field instruments powered from different grounding systems, isolation requirements should be reviewed during system design.\u003c\/p\u003e\n\u003ch3\u003eInstallation and System Design\u003c\/h3\u003e\n\u003cp\u003eThe module's compact design allows efficient use of ControlLogix chassis space while providing eight analog output channels from a single slot.\u003c\/p\u003e\n\u003cp\u003eTypical applications include:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eVariable frequency drive speed reference control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eControl valve positioning\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAnalog setpoint transmission\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProcess control loop outputs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRecording and monitoring systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the 1756-OF8 provide isolated output channels?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: No. The 1756-OF8 uses eight single-ended non-isolated output channels. Applications requiring channel isolation should use an isolated alternative such as the 1756-OF8I.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What output signal ranges are supported?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The module supports voltage outputs from -10 VDC to +10 VDC and current outputs of 0-20 mA or 4-20 mA.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many chassis slots are required?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The module occupies one slot in a ControlLogix chassis.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What types of field devices can be controlled by the module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The analog outputs can be used with drives, valve positioners, actuators, process controllers, recorders, and other equipment that accepts standard voltage or current control signals.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":67760766451786,"sku":"1756-0F8","price":230.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/8569\/3770\/files\/1756-OX8I_2.png?v=1741073905","url":"https:\/\/www.topbrandsplc.com\/products\/allen-bradley-1756-0f8-analog-output-module","provider":"Topbrands PLC Limited","version":"1.0","type":"link"}