I am using LabVIEW to communicate with a Eurotherm 2216 temperature controller. I am using this driver to communicate with this device via RS485. While the driver is for Eurotherm's 24xx series of devices, all the functions I am using are compatible with 22xx devices. I am using a USB to RS485 converter.
So far, I have confirmed that the RS458 converter is wired correctly to the device, the baud rate and parity are the same in LabVIEW and the device, and I am using the correct instrument address. Despite this, I am consistently getting the error 0xBFFF0015, "timeout expired before operation could be completed" at the VISA Read command. This suggests to me that the device is not sending any data back. As I am new to instrument control, I don't know what the problem might be and would appreciate any help. Thank you!