Fellow LabVIEWers
I have some problems related to a series of units from a specific vendor,
and they suggest I have to do something with the biasing Now, the issue itself
seems easy enough, as it involves just adding
a couple of resistors, in addition to the terminal resistor at the last unit in the line.
My question is this; can it be correct that a problem related to not having the bias resistors present,
will cause the RS-485 comunication to fail, i.e. that I get a time-out from my units ? I get a vague impresion that
problems caused by not having bias handled should give me garbage data instead of no data at all.
But as you understand, this is unknown territory to me. Any coments and knowledge about
biasing in RS-485 is appreciated.
Martin
↧
RS-485 biasing
↧