jraef
Electrical
- May 29, 2002
- 11,360
I am looking for a source of market information on how manufacturers fit into North American industry in terms of installed units (not dollars). Allen Bradley salesmen continually throw around a figure of 40% of all PLCs in use in NA are AB. If that's true, that is a commanding number. But is it? The few who to which I have had access to challenge on that have said the number comes from NEMA, but I have my doubts. I found no such study readilly available from NEMA or any other commonly known industry organization. While I will not dispute their dominance, that sounds like an awfully high number given the number of competitors they have. The purpose of my question has to do with communication compatibility in future systems developemnt. I don't need suggestions on standards and alternatives, nor do I want to hear about your brand of PLC. I just want to know of a reliable source of data on installed base.
Eng-Tips: Help for your job, not for your homework Read faq731-376![[pirate] [pirate] [pirate]](/data/assets/smilies/pirate.gif)
Eng-Tips: Help for your job, not for your homework Read faq731-376
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