Reading from Profibus slaves can be a challenge as you are facing the limitations of the RS485 bus system. With Moxa's unique paging solution on the MGate 4101 this limitation can be overcome by making use of 2 bytes to "page" between several pages of data enabling our customers to read more than 256 bytes from Modbus Slaves and converting the data to Profibus to be read on any Profibus Master PLC system
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