Lancie1 said:
Whew, I am glad those days are almost behind us.
What do you mean?
10 years from now, you're going to get a phone call. Then, you're going to have to dig out that old computer you kept around "just in case," and were about to scrap in another month or so.
That's one thing that bothers me with all this technology we're using. The batteries in the PLC will last about a decade (maybe). The software (or even the hardware) will be obsolete in much less than that, usually. Certainly, you'll be running the third or fourth iteration of DOS/Windows to come along since the install... How are we supposed to support our projects?
Yes, I know: one year warranty. But, I'm talking about when the customer, who really likes you and your equipment, calls you after the age of the machine catches up. In Europe, I'm told, they have an interesting approach. Old stuff just isn't supported, buy the new stuff. Here in the states, we don't like to be told to rebuild. Especially when all-we-want-to-do is make a small change or reload the program after a PLC craps out. Do you tell your customer, "I don't use that junk anymore. Let me show you the latest and greatest, and this'll last FOREVER."?
With serial ports becoming less common on laptops, and software changing all the time, maybe the PLC manufacturers should revisit an old concept: dedicated, hand-held programmers. The video game consoles are already taking PC hardware and building it for a specific purpose. Wouldn't it be interesting if AB made its own "laptop programmer"? No more waiting for the Rockwell guys to make your software compatible with the latest version of Windows!!! The software is "fixed", as in standard.
Alright, enough ranting. I know it's just a pipe-dream. When FAT128, Windows2010, Ultra-Mega-SuperIDE, USB4.21098, or the Pentium15 comes along we'll be right back here again.
AK