Zoi

Hello everyone! I am new in the this forum. I would really appreciate your help on this. I have 6 sensors with analog outputs which I wish to connect to my PC which has a RS232 port. I am using the DASYlab 11 software and I have 2 ADAM 4017 modules with analog inputs and 1 ADAM 4520 RS485 to RS232 converter. My first question is about the wiring of the 2 ADAM 4017 with the ADAM 4520 through a RS485 network. Are termination resistors essential?? Secondly, I can not find any example program in DASYlab format with 2 ADAM modules. Do I have to insert 2 different ADAM modules 4017? Do I have to send specific commands to each? Thank you in advance!!