Azbil C7G

8-8
Chapter 8. Modbus TCP Communication Functions

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)