Serial communication for technological tasks

 

Serial communication for technological tasks

Data communication is an essential component of automation engineering.

Besides the widely-used standardized bus systems such as Profibus DP and Profinet IO, there is also the option of serial point-to-point connections.
Different physical interfaces are used, depending on the application:

  • RS232 s a robust, established standard for universal applications

  • RS422 allows faster transmission rates and longer cable lengths.

  • RS485 enables the connection of multiple devices (multi-point connection)

  • TTY is suitable for especially long cables up to over 1000 m

Different protocols can be realized based on these physical transmission standards