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rs 485 multi-drop, multi-protocol advice

D

David Fussell

Jan 1, 1970
0
Hi,

I'm looking at an application that requires a few different devices to
share an RS485 connection. The problem (as I see it) is that each
device has it's own protocol, which I would regard as something of a
showstopper, since if it's going to work, I have to analyse each
devices protocols to ensure that (in spite of each device being
addressable) no inadvertent addressing of the wrong device can occur.

I'm tempted to say it can't be done without a common protocol, but I'd
be interested in any comments, either confirming contradicting my
reluctance.

Thanks!

David
 
T

Tom Woodrow

Jan 1, 1970
0
David,

Best keep your protocols seperated, especially if you are using any
binaty data that can take on avy value that might be considered an address.

Tom Woodrow
www.dacworks.com
 
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