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Line 1: '''Koyo DirectNET''' protocol is used by Direct Logic PLCs from Automation Direct and is used in APS vacuum controls since 1999. It is a master/slave protocol making use of [[~~RS232~~RS-232]] or [[~~RS422~~RS-422]] physical layers with a baud rate from 300 to 38,400. It is designed to drive a maximum of 90 PLCs on a serial line. ==External links==

DirectNET Protocol: Difference between revisions