Having a problem communicating with an Adam 4019+ through an Adam 4561 USB to RS485 Converter. VISA seems to see the converter OK, but all it is just a converter to communicate with the 4019. I'm getting nothing.
I put it in INT mode to set the protocols to default 9600 8,1, none. When I try to access it in Adam/Apax.net I get an "Unable to send command!" error and nothing else.
This is a Modbus component and I've successfully used Adam/Apax and Modbus in the past. This has me stumped. Any insights? Thanks.