{"product_id":"allen-bradley-1746-no4i-slc-500-output-module","title":"Allen-Bradley 1746-NO4I SLC 500 Output Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1746-NO4I is a four-channel analog output module for the SLC 500 PLC family that provides independent 4–20 mA control signals from each channel to field devices. Designed for use in a fixed SLC 500 chassis, it requires an external 24 V DC power source to drive the current loops, drawing about 195 mA from the 24 V supply during operation. Each channel can drive a current loop to actuators, valves, transducers, or meters, enabling precise analog control for processes such as valve positioning, flow or pressure control, and instrumentation feedback. The NO4I is an open-chassis, backplane-mounted module (catalog number 1746-NO4I) that integrates with other SLC 500 I\/O modules in a single rack, sharing common 0 V and 24 V power for the current loops. Utilizing Rockwell Automation’s SLC 500 ecosystem, it supports standard 4–20 mA signaling and is configured and diagnosed within the same software environment as other Allen-Bradley I\/O modules, ensuring straightforward integration into existing control schemes. This module is suited for applications requiring reliable current-based signaling to control analog devices while coexisting with digital I\/O in a unified Allen-Bradley SLC 500 system, offering a compact solution for expanding analog control in legacy automation architectures.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51658971971886,"sku":null,"price":2748.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_836212cb-3b38-4407-8eb0-8bedfafdeeb9.jpg?v=1769526174","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1746-no4i-slc-500-output-module","provider":"PLG Automation ","version":"1.0","type":"link"}