Siemens S7-1200 to Arduino Modbus TCP/IP Communications Part 3.

Welcome to a Siemens S7-1200 to Arduino Modbus TCP/IP Communications Tutorial Part 3.

In this video we have introduced an Arduino into the mix, which communicates with the Siemens S7-1200 PLC and Factory I/O using the Modbus TCP/IP Protocol.

This Siemens S7-1200 Modbus TCP/IP Video is 1 of 3 Modbus videos where we deal with the Arduino; programming it to function as a Modbus Server. The Arduino reads a potentiometers’ rotational position via an analogue input then stores that value in an input register.

In the following videos, the Siemens S7-1200 PLC, being on the same local area network is able to read the value stored in the Arduino Input register and use it as a setpoint to control the Water Level in the Tank.

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Please note at 1 minute 8 seconds into the video (1.08) it says Part 5 on the top right hand side of the screen. This is an error on my part as it should actually say Part 3. Sorry for any confusion Hope you enjoy the video .
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As a prelude to this video you may want to watch the previous two videos on Water Tank Level Control as they will definitely help you understand what we are trying to achieve. The Links are below:

Siemens S7-1200 Water Tank Level Control Part 1.
   • Siemens S7-1200 Water Tank Level Cont...  

Siemens S7-1200 Water Tank Level Control Part 2.
   • Siemens S7-1200 Water Tank Level Cont...  

To view the next video in the series, Siemens S7-1200 Modbus TCP/IP Communications with Arduino Part 3. select the link:
   • Siemens S7-1200 to Arduino Modbus TCP...  

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The Siemens S7-1200 System Manual
V4.4 11/2019, A5E02486680-AN