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I have previously been a fan of Virtual IO, mapping real IO to bits which are then used throughout the prog. Beauty, just amend the undocumented IO into the Virtual IO and hey presto, no global search and replace required. Disadvantage, when using large complex programs with DNet etc, the mapping takes longer than the actual software. When you get into it, even the IO to the HMI's should really be in the V IO as well. It heads towards infinity, or so it seems. It also seems somewhat confusing to followers. My question is this, should we really bother with virtual IO in light of todays powerful find and replace functions? Should I just search and replace IO on demand or is virtual IO part of "the good programmers guide"? and a more professional approach?
Any comments are more than welcome.
Any comments are more than welcome.