Logic analyser trace of the RS485 communication between a Master and 5 Slaves

Konstruiert von AD. Leider ist kein Fotograf angegeben.
Hochgeladen am 21.3.2010, 18:38 von Ad.  1 / 11

In the period between the A and B bars, the master interrogates all 5 slaves. As you can see in the bar above the ruler, this takes approx. 14ms or about 2.8ms/slave

schnaggels (22.3.2010, 13:10:37)

Hmm, 14ms with “only” 5 slaves. So we break the 10ms grid with more then 3 slaves :o

With the announced 8 possible slaves we get a 22,4ms for a full communication cycle then?

Ad (22.3.2010, 13:18:02)

Yes, that is what I expect, so it doesn’t meet the specification.