In a message dated 01/27/2003 15:07:04 Eastern Standard Time,
info@ORBITCOMS.COM writes:


> We are interested in the mechanics of how PLC logic is presented to the
> controller in a typical PLC but have no intention of reinventing an existing
> product.
>
> Kind Regards
>
>

Dvid, visit www.plcs.net.  They have a wealth of infomation on PLC logic
sysmbols and interpretation.

Sid Weaver
W4EKQ
Port Richey, FL

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