{"product_id":"allen-bradley-1746-ni4-4-channel-input-module","title":"Allen-Bradley 1746-NI4 4-Channel Input Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1746-NI4 is a four-channel analog input module for the SLC 500 family, engineered to convert four analog signals into the PLC for real-time processing in legacy automation environments. It provides four differential input channels, with each channel configurable for either voltage or current input, and the channels are not individually isolated, sharing a common reference on the backplane. The module is designed to plug into a 1746 backplane and communicates with the CPU over the SLC‑500 I\/O bus, with backplane power drawn at a 5V maximum. This makes the 1746-NI4 a practical choice for reading multiple analog sensor outputs in older installations or as part of a migration path within SLC 500-based control systems, where compact four-channel analog input coverage is needed in a single module. \u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51658972627246,"sku":null,"price":51.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_2a7340e0-8a99-45e4-8849-a029a04485c5.jpg?v=1769526190","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1746-ni4-4-channel-input-module","provider":"PLG Automation ","version":"1.0","type":"link"}