So, I have an annoying issue with communicating with this power supply.
I have an ISO-TCH IPS-2010 power supply and would like to be able to control it completely from LabVIEW. I've made a quick library (attached) and the VIs for writing voltage and current to the power supply work. I can send commands via VISA write to the COM port and the screen on the power supply shows the updates to the voltage and current.
However, I don't seem to be able to get anything back from VISA read. For example, sending the command "V<cr>" should get the power supply to send the output voltage back. I use a Visa property node after writing this command and the bytes at the serial port property returns "0" and so any read function with a non-zero bytes to read will (and has) time(d) out.
I should add that I am connecting using a usb to serial hub if that might be a cause.
So my question is:
Are there any common traps I may have fallen into?
Has anyone else tried communicating with this device before and did it work?
Any ideas for ways to fix this?
Appreciate any help.