How to write a specific COM connection?

Question

Hello,

I'm working with a measurement system (CL-200) and want to controll it with my computer.
So I connected it with the standart connection (BaudRate, DataBits, StopBits, Parity) but the original
software that I don't want to use sets the device in a "PC mode".
Only in this mode I can get answer with my Code requests.
So how do I set the needed values like this Software?
Cause with my connection the device isn't in a "Pc mode".

Here is a communication log from the software I want to emulate:

 

 

And here is the log of my current connection:

 

 

See mine is so much different than the connection I want to have.

Thanks for answers