R
robert
Not sure if anyone mentioned National Instruments, Lookout. Priced by number of tags for only ones related to real I/o such as local plc. Not number of internal tags such as timers, accumulators, etc. Also, one of few we looked at that offered editing in run mode. They are at http://www.ni.com/ Good luck, Robert Phillips Cypress Water Purification City of Wichita Falls [email protected]