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8-8
Chapter 8. Modbus TCP Communication Functions
z
1 data write command (06H)
(1) Function code (Write Single Register)
(2) Write address
(3) Write data
●
Request
●
Normal response
(1) Function code (Write Single Register)
(2) Write address
(3) Write data (echo back)
●
Abnormal response
(1) Error code (Write Single Register)
(2) Exception code (= 01H/02H/03H/06H)
8
(1)
6
(2)
0
(1)
6
(2)
(3)
0
(1)
6
(2)
(3)