Sales and repairs of SIMATIC S7-300 digital inputs / outputs

S7-300 digital inputs and outputs – new and refurbished parts and repairs

SIMATIC S7-300 digital I/O modules connect the PLC to the machine’s binary inputs and outputs. We supply input and output modules to suit the wiring and required functions.

FOXON ships parts worldwide and accepts faulty parts for repair
Enquire about purchase or repair

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 digital inputs and outputs parts

S7-300 Digital Inputs/Outputs for SIEMENS SIMATIC S7-300

Combined DI/DQ modules save space in the control cabinet and combine input and output channels for binary signals.

Typical Uses and Proper Selection

Combined digital modules contain both input and output channels. When replacing them, we will verify the number of DI and DQ channels, voltage, output current load, switching type, and front connector 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 new or refurbished parts, the possibility of repair, and suitable replacements.

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 harder-to-find options.

Spare Parts Warehouse for Industrial Automation
Spare Parts Warehouse for Industrial Automation.
Warehouse for Industrial Parts and Automation Components
Warehouse for industrial parts and automation components.

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.

Specialized Repair Center for Industrial Electronics
A specialized repair center for industrial electronics.
Diagnosis and Repair of Industrial Electronics
Diagnosis and repair of industrial electronics.
Details of an Electronics Repair on Industrial Equipment
Details of an electronics repair on industrial equipment.

Frequently Asked Questions

Can I replace the combined module with separate DI and DQ modules?

Yes, this is possible in some configurations; however, it is necessary to verify the space, wiring, and adjustments to the project configuration.

How quickly can you deliver the part?

Delivery times depend on the specific part and warehouse. Thanks to our access to numerous warehouses, we can 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.

Is the order number enough for the inquiry?

Yes. Ideally, provide the full number from the label and the desired quantity; a photo of the label will also be helpful for replacements or repairs.

Sales, Repair, Purchase
6ES7323-1BL00-0AA0

6ES7323-1BL00-0AA0

In stock
Code: 6ES7323-1BL00-0AA0
SIMATIC S7-300, Digital module SM 323, isolated, 16 DI and 16 DO, 24 V DC, 0.5 A, Total current 4A, 1x 40-pole
Sales, Repair, Purchase
6ES7323-1BH81-0AA0

6ES7323-1BH81-0AA0

In external stock
Code: 6ES7323-1BH81-0AA0
SIMATIC S7-300, digital module SM 323, optically isolated, for expanded temperature range 8 DI/8 DO, 24V DC, 0.5A, total current 2 A, 20 pin
Sales, Repair, Purchase
6ES7323-1BH80-0AA0

6ES7323-1BH80-0AA0

In external stock
Code: 6ES7323-1BH80-0AA0
SIMATIC S7-300, digital module SM 323, optically isolated, for expanded temperature range 8 DI/8 DO, 24V DC, 0.5A, total current 2 A, 20 pin
Sales, Repair, Purchase
6ES7323-1BH01-0AA0

6ES7323-1BH01-0AA0

In external stock
Code: 6ES7323-1BH01-0AA0
SIMATIC S7-300, Digital module SM 323, isolated, 8DI and 8DO, 24 V DC, 0.5 A Total current 2A, 1x 20-pole
Sales, Repair, Purchase
6ES7323-1BH00-0AA0

6ES7323-1BH00-0AA0

In external stock
Code: 6ES7323-1BH00-0AA0
SIMATIC S7-300, digital module SM 323, optically isolated, 8 DI and 8 DO, 24V DC, 0.5A aggregate current 2A, 20 pin
Sales, Repair, Purchase
6ES7327-1BH00-0AB0

6ES7327-1BH00-0AB0

In external stock
Code: 6ES7327-1BH00-0AB0
SIMATIC S7-300, Digital module SM 327, isolated, 8DI and 8DX, 24 V DC, 0.5 A 1x 20-pole; 8DX by individual channels Can be parameterized as…
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