12/7/2023 0 Comments Raspberry pi modbus rtuThe Modbus protocol is described in detail in many places, e. This makes the data stream itself human-readable but increases bus traffic. Modbus RTU sends data in binary form while Modbus ASCII sends ASCII characters. Serial communication has two versions, Modbus RTU (remote terminal unit) is widely used and described here. In this series of articles we only take a look at serial communication but not at Ethernet. Modbus is a industrial communication standard that uses either a RS485 bus for serial data transmission or Ethernet. ![]() ![]() Now it’s time for some facts about Modbus itself and the other end of the bus which happens to be an Arduino (sort of). In part 1 we have looked at the Raspberry Pi side of Modbus communication.
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