This article describes how you would set up a system where Modbus RTU data is read and written by PROFIBUS DP, when the PROFIBUS system is running at 1.5 Mbit/sec and the Modbus RTU is running at 38.4kbit/sec.
APPLICABLE PRODUCTS
Anybus Communicator
QUESTION
How would I set up a system where Modbus RTU data is read and written by PROFIBUS DP, when my PROFIBUS system is running at 1.5 Mbit/sec and my Modbus RTU is running at 38,4kbit/sec?
ANSWER
The speed on the PROFIBUS line is not an issue here since the PROFIBUS interface and the serial interface on the Anybus Communicator run independently of each other. The PROFIBUS and the Modbus networks both access their own data buffers, which are periodically synchronized against each other by the CPU in the Anybus Communicator.