{"product_id":"6es5948-3ur23-siemens-cpu-948r-2-s5-155h-processor","title":"6ES5948-3UR23 Siemens | CPU 948R-2 S5-155H Processor","description":"\u003ch2\u003ePowerful Siemens S5 Processor for Reliable Automation\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Memory:\u003c\/strong\u003e 1664 KB of internal RAM for complex programs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Storage:\u003c\/strong\u003e Add up to 4096 KB of Flash EPROM memory.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProven Reliability:\u003c\/strong\u003e The trusted \u003cstrong\u003eCPU 948R\u003c\/strong\u003e for the high-availability S5-155H system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Connection:\u003c\/strong\u003e Built-in interface for easy connection to programmers and operator panels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Delivery:\u003c\/strong\u003e Ready to ship globally via FedEx, UPS, or DHL.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #009999;\"\u003eSiemens 6ES5 948-3UR23\u003c\/strong\u003e is a powerful CPU module for industrial control systems. It is the brain for the S5-155H central controller. This \u003cstrong\u003eCPU 948R\u003c\/strong\u003e module has a large internal memory. You can also add external memory for big projects. It is built for tough and reliable factory work.\u003c\/p\u003e\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand \u0026amp; Model:\u003c\/strong\u003e \u003cspan style=\"color: #0066a1;\"\u003eSiemens\u003c\/span\u003e \u003cstrong style=\"color: #009999;\"\u003e6ES5 948-3UR23 (CPU 948R)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModule Type:\u003c\/strong\u003e SIMATIC S5 Processor Module\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor System:\u003c\/strong\u003e S5-155H Central Controller\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInternal User Memory (RAM):\u003c\/strong\u003e 1664 KB\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExternal Memory Support:\u003c\/strong\u003e Up to 4096 KB (Flash EPROM)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommunication Interface:\u003c\/strong\u003e 1 x 20 mA TTY (15-pin sub-D)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModule Width:\u003c\/strong\u003e Single-width\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBackup Memory:\u003c\/strong\u003e Memory Submodule Slot (Flash EPROM)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpansion Slot:\u003c\/strong\u003e For PG Interface Module\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProcessor Designation:\u003c\/strong\u003e CPU 948R-2\u003c\/p\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is this module used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt's the main processor (CPU) for the Siemens S5-155H controller. It runs your automation program to control machines and processes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I connect my programming laptop to it?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse the built-in 20 mA TTY port (15-pin socket). You will need a matching cable to connect to your PG\/PC for setup and monitoring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs 1664 KB of memory enough for my project?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor most S5 programs, it is very large. You can store a very extensive logic program and data. If needed, add the Flash EPROM submodule for even more space.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this to upgrade my old S5 system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it is a direct replacement CPU for the S5-155H rack. Always check your rack model and backup your program first.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens if the power goes out?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe program in RAM needs a battery backup. For permanent storage without power, use the Flash EPROM memory submodule to save your program safely.\u003c\/p\u003e\n\u003ch3\u003eWarranty \u0026amp; Shipping\u003c\/h3\u003e\n\u003cp\u003eYour purchase is protected by a \u003cstrong style=\"color: #c0392b;\"\u003e12-month quality warranty\u003c\/strong\u003e. We ensure quick shipping with reliable carriers like FedEx, UPS, and DHL.\u003c\/p\u003e\n\u003cp\u003e© 2025 Ubest Automation Limited. All rights reserved.\u003cbr\u003eOriginal Source: \u003ca href=\"https:\/\/www.ubestplc.com\/\"\u003ehttps:\/\/www.ubestplc.com\/\u003c\/a\u003e\u003cbr\u003eContact: \u003ca href=\"mailto:sales@ubestplc.com\"\u003esales@ubestplc.com\u003c\/a\u003e | Phone: \u003ca href=\"https:\/\/wa.me\/8618030005825\"\u003e+86 180 3000 5825\u003c\/a\u003e\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":51416734925082,"sku":"6ES5948-3UR23","price":169.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/6240\/4634\/files\/6ES5948-3UR23.jpg?v=1764813316","url":"https:\/\/www.ubestplc.com\/products\/6es5948-3ur23-siemens-cpu-948r-2-s5-155h-processor","provider":"Ubest Automation Limited","version":"1.0","type":"link"}