I work with PLCs daily. They are a different animal entirely. Most of the EMC2 implementations I have done on custom machines have included a PLC simply because they have been I/O intensive machines. There is no reason why you cannot use them together.
The PLC vs PC reliability argument still pops up once in a while in the US, but not nearly as much as it did 10 years ago. Now the "the PLC is better argument" usually dies quickly when it is determined that PCs are required as operator consoles and data servers in conjunction with the PLC system. Since PCs are already required - adding another one for motion control is oftentimes no longer an issue. Another thing; if the PC does not look like a desktop unit, it will not be perceived in the same way. Find a PC case that is industrial looking and use good quality PC hardware and they will forget that it is a PC. It is really all about perception. Dave On 5/19/2011 3:44 PM, Viesturs Lācis wrote: > 2011/5/19 Dave<[email protected]>: > >> The system is very reliable. >> >> Properly applied, EMC2 is extremely reliable and capable. >> > That is what I believe in and what I have seen so far on my machine. > But I have yet to prove it to convince others. Especially, if I am > facing resistance from their current supplier of controls, from whom I > expect a lot of things just to show that my solution is not good > enough. > > Actually it already has started by arguing that PC-based solution is > not reliable enough, because the hardware is not as reliable as some > PLCs. Since I do not have experience with PLC, unfortunately I can't > argue with that. > > Anyway, I think that best argument will a working machine :)) > > Viesturs > > ------------------------------------------------------------------------------ > What Every C/C++ and Fortran developer Should Know! > Read this article and learn how Intel has extended the reach of its > next-generation tools to help Windows* and Linux* C/C++ and Fortran > developers boost performance applications - including clusters. > http://p.sf.net/sfu/intel-dev2devmay > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > > ------------------------------------------------------------------------------ What Every C/C++ and Fortran developer Should Know! Read this article and learn how Intel has extended the reach of its next-generation tools to help Windows* and Linux* C/C++ and Fortran developers boost performance applications - including clusters. http://p.sf.net/sfu/intel-dev2devmay _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
