As mentioned before in the list AutomationDirect EZautomation Both have good choices, depending on your requirements. Software is very reasonable as well. Unless....your end customer is demanding Allen-Bradley, SquareD, Siemans, etc. Then it starts to get expensive, both hardware and software. --------------------------------- Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist