currently i am using RS232 for communicating the instrument and getting the data. but now i want to connect more devices in the same program. I read some discussions regarding multimode communication through RS485. Is it possible to get the data from each device at the same time? How the visa function is managed to address the device? if one device takes 1 second to update data then how much time will take for 5 devices? if my devices are sending data without any request, then is it possible to get all data in a stream and seperate by each adress?
