Siemens SIMATIC S5-100U PLC System with 24 Inputs and 16 Outputs

Description

This is a complete, assembled Siemens SIMATIC S5-100U Programmable Logic Controller system. It provides a robust solution for maintaining or repairing legacy automation systems that rely on the proven S5 platform. The system is built around the powerful CPU 100 and includes a mix of digital AC input and relay output modules, making it versatile for a wide range of control tasks. All components are mounted on a DIN rail and include terminal blocks for immediate installation.

Specifications

• CPU Module: 1x Siemens 6ES5 100-8MA02 (CPU 100)
• Digital Input Modules: 3x Siemens 6ES5 431-8MD11 (Total 24 inputs, 230V AC)
• Relay Output Modules: 4x Siemens 6ES5 452-8MR11 (Total 16 outputs, 30V DC / 230V AC, 2A)
• Series: SIMATIC S5-100U
• Condition: Used, tested and functional.

Label Info

• Manufacturer: Siemens
• Main Part Number: 6ES5 100-8MA02
• Component Part Numbers: 6ES5 431-8MD11, 6ES5 452-8MR11

Application

Ideal for spare parts, system extensions, or educational purposes for legacy control systems in manufacturing, process control, and building automation.

Country of Origin

Made in Germany.

CO2 Impact

Choosing this reused PLC system saves an estimated 102 kg of CO2 compared to manufacturing a new one. This is a sustainable choice for your operations.

Availability

This is an obsolete item with limited availability. Ensure your system's longevity by securing this spare part assembly. Order now from PLC2Day for expert support and fast delivery.

FAQ

This CPU is programmed using Siemens STEP 5 software. Connection is typically made via a TTY interface, requiring a specific programming cable (e.g., 6ES5 734-1BD20) and a TTY to USB/serial adapter for modern PCs.

No, the S5-100U series uses a different backplane bus and form factor. Modules are generally not interchangeable between different S5 families (e.g., S5-95U, S5-100U, S5-115U). You must use modules specifically designed for the S5-100U.

The slot on the CPU 100 is for an EPROM or EEPROM memory submodule. This is used to store the user program non-volatilely, so the program is retained even after a complete power loss without needing a backup battery. The specific type of submodule depends on the required memory size.

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Last Update: Friday, March 13, 2026