I am trying to communicate with our Schwien manometer using Fluke Compass with a NI GPIB-USB-HS. I am able to talk to the manometer with NI VISA but not with our Fluke Compass software, Compass does successfully communicate with other equipment on the bus. I used NI trace to look at the Command I am sending to the manometer and noticed some differences. Visa sends the Command D as "D", but when compass sends it, there are a couple of periods after the command "D..". Attached is a screenshot of I/O Trace. Does anyone know why I am receiving an EABO?