we want to develop machine that could send error/monitoring message to our cellphone. does anyone ever try PLC to this kind of application and what PLC do you use, thanks
siemens s7 200 has this application and even i think there is a micro automation set for it (ready made solution with all components , documnetation ,....)
I use these, they are easy to set up, you can use them to call a phone and annunciate a message, they are easier then setting up a PLC modem, just use the PLC output to activate it... Check your local alarm company to see what type they use, that way you can get one localhttp://www.compare123.com/Electronics/Viking_K2000DVA_SP2467984.html