{"product_id":"siemens-6es5948-3ur23-cpu-processors","title":"Siemens 6ES5948-3UR23 : CPU Processors","description":"\u003cp\u003eThe \u003cstrong\u003eSiemens 6ES5948-3UR23\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e6ES5948-3UR23\u003c\/strong\u003e CPU 948R Processor Module, operates as a central processing unit for safety-related, fault-tolerant, and high-performance closed-loop binary or floating-point control logic execution within SIMATIC S5-155H redundant automation systems.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e6ES5948-3UR23 (6ES59483UR23)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSIMATIC S5 (CPU 948R)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eGermany (DE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.44 lbs (0.20 kg) net mass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard single-slot SIMATIC S5 rack-mountable execution module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C (32 to 131 deg F) internal chassis ambient limits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eSourced via S5 sub-rack backplane power rails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eCentral Processing Unit \/ Processor Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntegrated RAM\u003c\/td\u003e\n\u003ctd\u003e1600 KB total integrated RAM memory matrix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Platform\u003c\/td\u003e\n\u003ctd\u003eExclusively engineered for the S5-155H fault-tolerant sub-rack series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eSiemens Industrial Control and Redundancy Architecture\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Bus Communication Velocity Licences:\u003c\/strong\u003e The CPU 948R processes data words directly over the parallel S5 backplane bus structure. Its hardware registers handle memory transfer cycles that sync the local program image to a redundant partner processor over dedicated fiber or IM coupling blocks within sub-millisecond scan windows.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware Flash Compatibility:\u003c\/strong\u003e The internal 1600 KB memory array holds the compiled STEP 5 instruction set, floating-point math libraries, and configuration data blocks. The solid-state design protects volatile control bits against power failure when matched with standard sub-rack backup battery arrays.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the CPU 948R execute a failover switch if an error occurs on the active S5-155H rack?\u003c\/p\u003e\n\u003cp\u003eA: The processor runs an internal hardware-level self-test routine during each loop. If it detects a memory parity mismatch or a cycle timeout fault, it releases control of the backplane bus within microseconds, allowing the backup processor to take over the I\/O image without interrupting field devices.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 6ES5948-3UR23 processor module be hot-swapped while the active system bus is running process tasks?\u003c\/p\u003e\n\u003cp\u003eA: No. The parallel backplane bus architecture of the SIMATIC S5 series does not feature galvanic isolation gates for live online card exchange. Extracting or inserting this processor card while the rack is energized will cause a catastrophic system bus failure, interrupt the execution scan, and potentially cause component damage due to voltage transients across the backplane pins.\u003c\/p\u003e","brand":"SIEMENS","offers":[{"title":"Default Title","offer_id":45139770998899,"sku":"6ES5948-3UR23","price":410.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-06-29_13-59-15.png?v=1782714469","url":"https:\/\/www.dcssupplier.com\/products\/siemens-6es5948-3ur23-cpu-processors","provider":"DcsSupplier Limited","version":"1.0","type":"link"}