{"product_id":"allen-bradley-1756-of4-analog-output-module","title":"Allen-Bradley 1756-OF4 Analog Output Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1756-OF4 is a four-channel analog output module for Rockwell Automation’s ControlLogix I\/O backplane. Each of its four channels can be configured to deliver either a voltage signal (up to ±10 V) or a current signal (0–20 mA) to field devices, enabling flexible control of actuators, valves, and analog components in process and automation applications. The module provides high-resolution output: voltage channels are 15‑bit across roughly a 10.5 V span, while current channels are 16‑bit across about a 21 mA span, delivering precise, repeatable control with fine granularity. It uses removable terminal blocks (1756-TBNH or 1756-TBSH) on a 20-pin block for wiring and mounts in a standard ControlLogix chassis. Power dissipation is typically around 3.25 W for four current outputs, with higher dissipation possible at elevated temperatures (up to about 4.9 W), and backplane current requirements of roughly 150 mA at 5 V and 120 mA at 24 V. The 1756-OF4 is commonly employed in industrial automation where multiple analog outputs are needed to drive precision actuators or to implement multi‑point analog control loops within a ControlLogix system.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51658917773614,"sku":null,"price":2306.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_e886919d-5030-47f9-9192-571c3c8dbc6d.jpg?v=1769525525","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1756-of4-analog-output-module","provider":"PLG Automation ","version":"1.0","type":"link"}