I've written a set of VIs to perform communication with Allen Bradely
PLCs (MicroLogix, Compact Logix, Control Logix) via ethernet. These
set of VIs use TCP to read/write tags. No OPC Server, NI-DSC Module
nor Automation Runtime is required.
Any Device that supports EtherNET/IP Protocol can ba accessed using
these VIs.
I've posted the VIs in LAVA forum.
Please refer to the following topic at LAVA.
http://forums.lavag.org/Industrial-EtherNet-EtherNet-IP-t9041.html
Best regards
Siva
sivamgr@gmail.com