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Serial port communication in C #

We have a scenario where several devices are connected to the same COM port. Each device has an access code, which is determined manually in the device.

Can I access all connected devices using an access code in C # ?. Does anyone know how to do this?

In my case, several devices are connected to the same port, but the slave addresses are different. How can I access all the slave addresses in C # code to limit that the other device does not have the same slave address?

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2 answers

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byte description
---- -----------
  00 command
  01 address
>=02 data

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Source: https://habr.com/ru/post/1717039/

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