Question about Xcelerator. . . . . .

I was looking at the construction pictures of Xcelerator at www.westcoaster.net and I ran across a picture that said

"The PLC is gettin its house", well what exactly is a PLC?

if anybody knows what this is please let me know.

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James Draeger
http://draegs.livejournal.com
"Legend is a wooden Jesus"