I try to communicate with a Modbus RTU controller with a MOXA Ethernet to RS232 converter. I use DSC module to create a modbus Ethernet driver, and create a list of shared
variables that are bound to individual addresses in the modbus register.
I have tried for a long time to make this communication stable, but I lose communication after a couple of hours.. That means that some of my temperatures goes to zero for a short moment, and some digital values stays high. When I restart my vi, it works again for some hours..
Maybe it is a communication problem true Ethernet, because I have tested shared variables in other ways, and it works fine..
I want to know if there is any specific rules how to put up a good way to communicate with my modbus driver true Ethernet.. I have enclosed an example that I tried, and I have also tried to read values directly into while loops, but I lose communication after a couple of hours..
Anybody… I would be happy to see a good and stabile way to put up a communication example.. I use Labview 8.0 . thanks..
Regards Benjii..
