Siemens SIMATIC S5 CPU 922 R-Processor Module 6ES5922-3UA11

Description

This is the Siemens SIMATIC S5 CPU 922, an R-Processor with part number 6ES5922-3UA11. This central processing unit is a crucial component for the S5-135U and S5-155U automation systems. Known for its reliability in demanding industries, it is an ideal spare part for maintaining or repairing existing S5 installations.

Specifications

• Manufacturer: Siemens
• Series: SIMATIC S5
• Model: CPU 922 (R-Processor)
• Compatibility: S5-135U, S5-155U
• Memory: 8 KByte
• Part Number: 6ES5922-3UA11

Label Info

• Manufacturer: Siemens
• Part Number (1P): 6ES5922-3UA11
• Description: R-PROZESSOR
• Version: 11
• Quantity: 1

Application

This CPU module is used as the central controller in Siemens S5-135U and S5-155U PLC systems, commonly found in manufacturing lines, machine control, and process automation.

Country of Origin

Germany

CO2 Impact

By reusing this part, you save approximately 32.0 kg of CO2 emissions. This is equivalent to the emissions from a passenger car driving 160 kilometers. Choose sustainability and reduce your footprint.

Availability

This is a discontinued but essential component. Our stock is limited. Order now from PLC2Day for expert support and fast delivery.

FAQ

Question: Can this CPU 922 be used in any SIMATIC S5 rack?

Answer: No, this CPU is specifically designed for use in the central controller racks of Siemens S5-135U and S5-155U systems. It is not compatible with other S5 series like the S5-95U or S5-115U.

Answer: To program this SIMATIC S5 CPU, you need the legacy Siemens STEP 5 software. Modern software like TIA Portal is not compatible with the S5 series.

Answer: Yes, SIMATIC S5 CPUs use a battery to retain the RAM contents (and thus the user program) when power is off. It is recommended to replace the battery preventatively to avoid program loss.

Last Update: Friday, March 13, 2026

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