Hello,
my name is Fabio Baldo, I'm from Padova in Italy.
I'm a developer in Automtion Technology, I usually use Siemens Products: Tia Portal and S7. But I develop windows app in Java to get data from PLC.
I know xml and json, I know Modbus protocol, so I'm able to buid your app.
Can I ask if you want use modbus via TCP or via RS485?
If you need more informations please contact me.
Best Regards