Operator interfaces let users and PLCs 'talk' to each other

There is one common thread found in the PLCs of 1978, 1984, or even 1995; absence of operator interface. Because of this, a large third-party marketplace has developed. Text-based message displays and graphical terminals offer low-cost, high functionality, and near-intuitive operation.

Bibliographic Details

Published in:	Control engineering 1996-04, Vol.43 (6), p.69-70
Main Author:	Morris, Henry M
Format:	Magazinearticle
Language:	eng
Online Access:	Get full text
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