SIEMENS CPU 945 6ES5945-7UA23

Siemens SIMATIC S5 CPU 945 for S5-115U Systems Description This is the Siemens CPU 945, a central processing unit module for the SIMATIC S5-115U PLC family, with part number 6ES5945-7UA23. It is a powerful and reliable controller for medium-sized automation tasks. As a critical component of the S5 system, this CPU is ideal for spare parts inventory or for replacing a faulty unit in an existing installation, ensuring continued operation without the need for a full system upgrade. Specifications Manufacturer: Siemens Product Family: SIMATIC S5 System: S5-115U Module Type: Central Processing Unit (CPU) Model: CPU 945 Part Number: 6ES5945-7UA23 Label Info Order Number: 6ES5 945-7UA23 Serial Number: SC-K3A89190 Hardware Version (E-Stand): 02 Application Designed for controlling industrial processes in manufacturing, logistics, and process control. An essential component for companies maintaining machinery and plants that rely on the proven Siemens SIMATIC S5 platform. Country of Origin Made in Germany. CO2 Impact By purchasing this pre-owned module instead of a new one, you contribute to the circular economy and avoid the emission of approximately 32 kg of CO2, which is comparable to driving a car for 160 km. Availability This is an obsolete item, available as a refurbished spare part. Condition is used but tested for functionality. Order now from profideals for expert support and fast delivery. FAQ Question? Does this CPU 945 module come with a memory submodule? Answer No, this is the main CPU unit. A memory submodule (EPROM or EEPROM) is required for operation and must be purchased separately. The type of submodule determines the program memory capacity. Question? What software and cable are required to program this S5-115U CPU? Answer Programming is typically done using Siemens STEP 5 software. You will need a specific programming cable, often a TTY converter cable, that connects your computer’s serial port (or a USB-to-serial adapter) to the 15-pin PG port on the CPU. Question? Is the internal backup battery still functional on this used module? Answer As this is a used, obsolete item, the condition of the internal backup battery is not guaranteed. It is strongly recommended to replace the backup battery upon installation to prevent loss of the program and data during a power outage. Last Update: Friday, March 13, 2026 profideals is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners.