SIMATIC S5-115U CPU 943B
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12 months for new products and 6 months for used products.
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6ES5943-7UB21 – SIMATIC S5-115U CPU 943B is a CPU 943B central processing unit for SIMATIC S5-115U. It provides 48 KB RAM and two TTY serial interfaces using the 20 mA current-loop standard.
When replacing a legacy S5 CPU, compare CPU revision, program-storage method, external memory and interface configuration. The machine project can depend on the exact hardware revision.
Manufacturer documentation and product information are available from Siemens Industry Online Support. Related products in the POLRAD catalog: 6ES5375-0LC61, 6ES5465-7LA13.
For service replacement, compare the complete catalog number and device parameters with the machine documentation. If you are unsure, send us the marking from the installed module and we can help verify the correct variant.
