A control system includes an Internet web interface to a network of at least one programmable logic control system running an application program for controlling output devices in response to status of input devices. The Web interface runs Web pages from an Ethernet board coupled directly to the PLC...http://www.google.fr/patents/US6963922?utm_source=gb-gplus-shareBrevet US6963922 - Dual protocol stack for maximum speed access to a programmable logic controller (PLC) in a factor automation system
Dual protocol stack for maximum speed access to a programmable logic ...
