USB or COM what can I do?
Hello every one
I have to send a text file by an optical transmitter device. This instrument connect to USB (but it has a driver soft ware that when I check my device manager it shows USB by COM) so what is this connection how can I send the data ?
Typically the serial comunication have to follow rules wich are written from the instruments builder who has to give you (this rules is named protocols). The first thing you have to do is to check you port configuration (n of byte, bit of stop, parity and so on) which have to be the same configuration of the port as the instrument is using. After trying to send a protocl command to the instruments and wait an ammount of milliseconds (100, 200,...) before getting the answer from the instrument. You need to insert a wait time because, usually the instruments need time to receive the command ad to send the properly answer. Use the "byte at port" node to check when there are some bytes to read before reading.
I hope this is enough, if it isn't try to post your VI we'll check it!
Ricky
Italian Developer engineer
www.www.selt-sistemi.com
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