- SIEMENS
- SIMATIC S7-300
- Analog Inputs / Outputs
Sales and repairs of SIEMENS SIMATIC S7-300 analog inputs / outputs
S7-300 analog inputs and outputs – new and refurbished parts and repairs
SIMATIC S7-300 analog I/O modules connect the PLC to sensors and actuators. We supply input and output modules for processing and transmitting analog signals.

We will send a non-binding quote within 1 hour.
- Worldwide delivery
- Our own and partner parts stock
- Professional repairs
- Parts with warranty
More about selecting S7-300 analog inputs and outputs parts
S7-300 Analog Inputs and Outputs for SIEMENS SIMATIC S7-300
Combined AI/AQ modules integrate analog signal measurement and continuous actuator control into a single device.
Typical Uses and Proper Selection
Combined analog modules integrate measurement and output control into a single unit. When selecting a module, we compare the types of input and output signals, the number of channels, the measurement ranges, the resolution, and compatibility with the S7-300 configuration.
Please send us the full order number, a photo of the label, and, if possible, information about the wiring or project. Based on this information, we will verify compatibility, the availability of a new or refurbished part, the possibility of repair, and a suitable replacement.
How do you choose the right model?
The most reliable method is to select the part based on the complete SIEMENS part number. When replacing a part, we also recommend verifying the hardware and firmware versions, the part's function, the station configuration, and compatibility in TIA Portal.
- the complete order number and the quantity requested,
- the function and technical specifications of the original part,
- compatibility with the CPU, expansion modules, and the project in question.
New and refurbished parts from our warehouses
For current S7-300 parts, we primarily check the availability of new, genuine SIEMENS parts. We have access to an extensive network of industrial parts warehouses in Europe and around the world, so we can also verify the availability of refurbished, discontinued, and hard-to-find variants.


Repairs of SIEMENS SIMATIC S7-300 Parts
You can send the defective part to FOXON for diagnosis and repair. We perform repairs at specialized repair centers in Europe, and after repair, the parts are functionally tested under load.



Frequently Asked Questions
AI is an analog input, AQ is an analog output, and AI/AQ combines both functions in a single module.
Delivery times depend on the specific part and warehouse. Thanks to our access to numerous warehouses, we typically arrange delivery within a few days; for urgent needs, we can offer express delivery within a matter of hours. For urgent requests, call us immediately—we can arrange express delivery of selected parts day or night.
Yes. Ideally, provide the full number from the label and the requested quantity; a photo of the label will also be helpful for replacements or repairs.

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6ES7334-0CE01-0AA0

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