up: embedded systems - modbus  
embedded systems - modbus - message format - TCPWhat links here?
NameLengthFunction
Transaction Identifier2For synchronization between messages of server and client
Protocol identifier20 for Modbus/TCP
Length field2Number of remaining bytes in this frame
Unit identifier1Slave address (255 if not used)
Function code1Function codes as in other variants
Data bytesNData as response or commands
embedded systems - modbus - message format - TCP
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filename:embedded systems - modbus - message format - TCP
filename:embedded%20systems%20%2D%20modbus%20%2D%20message%20format%20%2D%20TCP
last edit:September 27 2019 19:53:21 (2177 days ago)
ct = 1757738126.000000 = September 13 2025 00:35:26
ft = 1569628401.000000 = September 27 2019 19:53:21
dt = 188109725.000000