In my experience the Belkin F5U409 USB to serial adapters can be a huge time waster. When I use onboard serial port, it works flawlessly but that USB to serial port(rs-232) adapter does not terminate even device sends a terminating character.Any help is greatly appreciated,Hakan I set port in Labview so that it terminates reading when a terminating character is sent by the device. I've got this adapter to connect a serial device to the computer. My question about that issue is will that converter work in the way I want? Does it really converts protocol to rs-485 or should I obtain a PCI rs-485 port? One other solution might be converting onboard serial port to rs-485 protocol with a converter such as this one and connect devices with a single port for daisy-chain communication style which my devices already support. I will actually connect two devices but my motherboard has only one port.
#Belkin fsu109 usb to serial adapter driver code
What the heck is happening here guys? How can I correct this? Did it happed to you before? That would be great if you could look at the code attached. If the device is not connected, it waits 'timeout' milliseconds and terminates with 'VISA: (Hex 0xBFFF0015) Timeout expired before operation completed' error. But when I use USB to serial port, it waits 'timeout' milliseconds(set during configure serial port) and then terminates without an error even if device responds correctly. When I use onboard port, reading is terminated immediately after device sends a terminating character. I first configure port to accept terminating characer and wire the output 'VISA resource name' to the write&read VI. When I use onboard serial port, it works flawlessly but that USB to serial port(rs-232) adapter does not terminate even device sends a terminating character.
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