LG Electronics 120S user manual Communication Functions

Chapter 8 Communication Functions

4) Example program 3

The master writes data D1000 ~ D1003 to contact 40000 of the slave station no. 10.

①

②

③

④

① : It designates slave station and function code ( No. of station : h0A(10) , function code : h10 )

②: Address setting

Address ‘0’ of function code ‘16’ at MODBUS protocol means address ‘40000’ actually. ③ : Writing number setting ( Writing number is 4)

④ : This is MODBUS Communication instruction.

5) Example program 4

The master writes data in D1000 to contact 40000 of the slave station no. 10.

①

②

③

④

① : It designates slave station and function code ( No. of station : h0A(10) , function code : h06 )

②: Address setting

Address ‘0’ of function code ‘16’ at MODBUS protocol means address ‘40000’ actually. ③ : Writing number setting ( Writing number is 1)

④ : This is MODBUS Communication instruction.

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