{"product_id":"allen-bradley-1756-of4-analog-output-module-4-channel","title":"Allen-Bradley 1756-OF4 Analog Output Module 4-Channel","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1756-OF4 is a four‑channel analog output module for ControlLogix backplanes that provides four configurable outputs in a single slot for controlling analog actuators and process equipment. Each channel can be set as either a -10 to +10 V voltage output or a 4–20 mA current output, driven by a true 15‑bit DAC with separate resolutions (voltage ~320 µV\/bit over a 10.5 V span; current ~650 nA\/bit over a 21 mA span). Key performance figures include a settling time under 2 ms to 95% of final value with resistive loads and calibrated accuracy better than 0.05% of range (4–21 mA or -10.4 to 10.4 V). The module features 250 V continuous isolation between the output backplane and channels, with no isolation between individual channels. Backplane power requirements are 5.1 V up to 150 mA or 24 V up to 210 mA (total backplane power around 5.8 W), and the device dissipates about 3.7 W. Open‑circuit detection, 24 V DC overvoltage protection, and short‑circuit protection electronically limited to 21 mA or less enhance reliability. Field wiring is through removable terminal blocks (1756‑TBNH or 1756‑TBSH), and the module occupies a standard 1756 slot. In applications, it provides precise, independently configurable analog outputs for ControlLogix systems, suitable for interfacing with analog transducers, valves, or actuators in automation and process control environments.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51659648106798,"sku":null,"price":492.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_d3276d80-27ed-4bf7-9b41-a01c0a509522.jpg?v=1769529660","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1756-of4-analog-output-module-4-channel","provider":"PLG Automation ","version":"1.0","type":"link"}