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What's the realistic master module limit?

Kevin 2 days ago in IQANdesign updated 9 hours ago 2

We are planning a project with 6 x MD5 displays and 6 x MC43FS modules, is there a limit that the diagnostic bus and master bus will take before it overloads? These modules are connected all together for both diagnostic and master bus. Conscious of initial start-up bursts and also general running bandwidth consumption.

Well you can only go 0-7 on the ID tags. Pretty sure that's the limit.


We've run an MD4 + 6 XA2s before and it was fine, was definitely annoying to troubleshoot bus failures though.

Thanks, understand the max limit of a given module type but we are running 12 masters on the same master and diagnostic buses (6 x MD5 each with a different ID tags, and 6 x MC43 with different ID tags) so I'm a bit concerned about the max traffic allowed.


If we had multiple masters of different type we could theoretically connect 7 x MC41, 7 x MC42, 7 x MC43, 7 x MC41FS, 7 x MC42FS, 7 x MC43FS plus multiple MD4 and MD5 displays. Not sure a diagnostic or master bus can handle all these connected together even though it satisfies the 0-7 tag rule!