problem step 5, network H1, how generated DB

hello, I have a problem, which, I do not have the knowledge at that level, because not to be generated, a DB, in a network H1 of send to receive data between two teachers, of setp 5, please can help me

You may have better luck asking here... my step5 is bad... but my Spanish is worse

http://www.automatas.org/foro/index.php

Do you need to make a DB? or are you message from one PLC to another?

I think by teachers he saying he wants to send messages between 2 masters.