Hi,
I seek some help on Agilent chemstation macro.
What I tried to do is to use chemstation macro to control two external pumps, which pump solutions to UV vis cell.
I tried the code provided in the macro guide but were told those codes were for the old instrument and no longer supported. The suggestion is to use DDE to communicate through computer's com ports.

I wonder whether anyone know how to do it. I know how to use DDE to communicate with excel file through macro but my knowledge stop here.

Thanks for your help.