Alex, Yes, the application is industrial grade, but it is quite simple (2 axes of motion). I only need 1 modbus network to two temp controllers. Since there are 2, that rules out '1' RS-232 network, but I can use '1' RS-485 network. Or Seb's USB setup would work.
I did see on the mesa site the 7I34 8 channel RS-422/485 interface for Anything I/O. I would think that would work. Your comment about industrial grade is my concern about using LinuxCNC at all. I figure I can try it and if I run into issues I can slap in a brick PLC (omron, panasonic, etc) w/ some option cards, but that is much more expensive and less flexible in the long run. I look at LinuxCNC w/ so much potential and it combines the control and HMI into one piece. I realize it is not a traditional industrial control solution. If you think I'm crazy for doing this, let me know now... ---------------------------------------------------------------------------- SEB - I can embrace USB. I just thought that was looked down upon due to the lack of real-time nature of USB ports? Although, I don't really need real-time here for temp control. Just updating and current temp feedback. I think for the price of the mesa board, that seems like a good option and more trustworthy than the Amazon USB part. Just my 2 cents.. Thanks all for your feedback, Mark Hi Mark . Be careful with this kind of adapters because they are not optocoupled . If your application is an industrial grade I will spend some more money and buy something like the Advantech converter/adapter you linked above. Do you really need to have two separate Modbus network ? Alex ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
