Sales and repairs of SIEMENS SIMATIC S7-300 analog inputs

S7-300 analog inputs – new and refurbished parts and repairs

SIMATIC S7-300 analog inputs convert sensor signals into values for the PLC. We supply modules for voltage, current and temperature measurement; supported signals depend on the specific version.

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 analog inputs parts

S7-300 Analog Inputs for SIEMENS SIMATIC S7-300

AI analog inputs convert sensor signals for processing in the PLC. The correct selection depends primarily on the signal type, the number of channels, and the required resolution.

Typical Uses and Proper Selection

The SM 331 analog inputs are used to measure voltage, current, resistance, RTDs, and thermocouples. To ensure a proper replacement, please send us the sensor type and its range; based on that, we will verify the number of channels, resolution, isolation, and parameter settings.

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 recommend also verifying the hardware and firmware versions, the part’s function, the station configuration, and compatibility in TIA Portal.

  • the complete order number and the desired quantity,
  • 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 remanufactured, discontinued, and hard-to-find variants.

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.
Diagnostics 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 analog input with a different type?

You must verify the signal type and range, the number of channels, and the configuration in TIA Portal.

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 to place an inquiry?

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

Sales, Repair, Purchase
6ES7 331-7KB02-0AB0

6ES7 331-7KB02-0AB0

In external stock
Code: 6ES7 331-7KB02-0AB0
SIMATIC S7-300, analog input SM 331, isolated, 2 AI, resolution 9/12/14 bits, U/I/thermocouple/resistor, alarm, diagnostics, 1x 20-pole,…
Sales, Repair, Purchase
6ES7331-1KF01-0AB0

6ES7331-1KF01-0AB0

In external stock
Code: 6ES7331-1KF01-0AB0
SIMATIC S7-300, ANALOG INPUT SM 331, OPTICALLY ISOLATED, 8 AI, 13 BIT RESOLUTION, U/I/RESISTANCE/PT100, NI100, NI1000, LG-NI1000, 66 MS…
Sales, Repair, Purchase
6ES7336-4GE00-0AB0

6ES7336-4GE00-0AB0

In external stock
Code: 6ES7336-4GE00-0AB0
SIMATIC S7, Analog input SM 336, 6 AI; 15 bit; fail-safe analog inputs for SIMATIC Safety, with HART support, up to Category 4 (EN 954-1)/…
Sales, Repair, Purchase
6ES7336-1HE00-0AB0

6ES7336-1HE00-0AB0

In external stock
Code: 6ES7336-1HE00-0AB0
SIMATIC S7, Analog input SM 336, 6 AI; 14 bit; 40-pole, fail-safe analog inputs for SIMATIC S7F systems with diagnostic alarm
Sales, Repair, Purchase
6ES7331-1KF02-0AB0

6ES7331-1KF02-0AB0

In external stock
Code: 6ES7331-1KF02-0AB0
SIMATIC S7-300, Analog input SM 331, Isolated 8 AI, resolution 13 bits U/I/resistor/Pt100, NI100, NI1000, LG-NI1000, PTC/KTY, 66 ms…
Sales, Repair, Purchase
6ES7331-7PF11-0AB0

6ES7331-7PF11-0AB0

In external stock
Code: 6ES7331-7PF11-0AB0
SIMATIC S7-300, Analog input SM 331, isolated, 8 AI thermocouples Type B, E, J, K, L, N, R, S, T TXK/TXK (L) according to GOST 16 bit, 50ms…
Sales, Repair, Purchase
6ES7331-7PE10-0AB0

6ES7331-7PE10-0AB0

In external stock
Code: 6ES7331-7PE10-0AB0
SIMATIC S7-300, Analog input SM 331, single channel Isolated 250 V AC, 6 AI thermocouples Type B, E, J, K, L, N, R, S, T Voltage: +/-25MV…
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