Dear Mr. Kumar,

Am having ET151-1 Standard with S7-300, I have to do modbus master communication. I need a sample program for 2 Slaves. Kindly forward a sample program.

------------------------------------------------------------------------------------------
Split from Modbus master configuration with ET 200S 1SI Module.

Hello,

When you install the software for Pt_to_Pt, examples are added in the example folder of STEP7.
In the Step7 manager ==> file ==> open, there is a tab where you can reach the installed examples.

See screenshot.

Here is an example for Modbus RTU:

Master-Slave Communication with Modbus RTU Protocol for S7-300 and ET 200S Systems

regards