{"product_id":"siemens-6es5921-3wa13-processor-module-simatic-s5-130","title":"Siemens 6ES5921-3WA13 Processor Module SIMATIC S5-130","description":"\u003cdiv\u003e\u003cp\u003eThe Siemens 6ES5921-3WA13 CPU921 Processor Module is the central processing unit for the SIMATIC S5-130 central controller family. As a CPU921WA module, it plugs into the S5-130 central controller rack to execute PLC logic and coordinate communication with I\/O and field devices in legacy Siemens automation systems. The part number 6ES5921-3WA13 identifies this processor module within the S5-130 lineup and aligns with the CPU921 family used in 130-series central controllers. In typical applications, it serves as the control brain for S5-130 installations in manufacturing and process automation environments, enabling reliable program execution and control sequencing on older production lines. Verified characteristics include its designation as a CPU921 WA processor module in the SIMATIC S5-130 central controller family and its association with Zentralbaugruppe 921 hardware for compatible S5-130 racks and backplanes. This module is intended for technicians performing replacement, maintenance, or upgrades of legacy Siemens equipment, helping preserve established control functionality without migrating to newer PLC architectures.\u003c\/p\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46268519383274,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-018.png?v=1788727429","url":"https:\/\/gtghardware.com\/products\/siemens-6es5921-3wa13-processor-module-simatic-s5-130","provider":"GTG Hardware","version":"1.0","type":"link"}