{"product_id":"allen-bradley-1747-l20a-slc-plc-processor-module","title":"Allen-Bradley 1747-L20A SLC PLC Processor Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1747-L20A is a fixed-hardware SLC 500 processor unit that provides a compact 20-point I\/O footprint: 12 inputs at 120 VAC and 8 AC\/DC relay outputs, all powered from a 120\/240 VAC supply. It includes 1K words of user memory, executes ladder logic programmed in the RS-Logix 500 environment, and is commonly programmed via the 1747-PT1 handheld terminal for field updates. Its physical form measures about 5.72 in W x 1.37 in D x 5.15 in H and weighs roughly 0.37 lb, with a 0–60 C operating range. The module supports DH-485 communications and is suitable for small to mid-size automation tasks requiring relay-based I\/O and straightforward integration into an SLC 500 rack; high-speed counter capability is not provided on this model. A Belden 9463 cable is a typical connectivity option for processor-to-I\/O linkage in many installations. The 1747-L20A is designed to be compatible with standard SLC 500 fixed-hardware chassis and can be expanded with compatible I\/O modules to scale the control system as needed.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51658961649966,"sku":null,"price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_4773e0c5-910d-4416-aa4e-bfaa708a98b0.jpg?v=1769526023","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1747-l20a-slc-plc-processor-module","provider":"PLG Automation ","version":"1.0","type":"link"}