Ethernet I/O Interface?

Hello all,

I'm looking for an ethernet-based I/O interface with digital inputs and relay outputs. I looked at the AB 1734 Point IO series, but that seems to be proprietary. What I'd like to use would (ideally) have a .dll file for use with VB. There are many USB devices on the market that do what I want, but have had little luck finding something here in the states. Any ideas?

Bryan

try www.beckhoff.com
they seem to do most things.
I've used there devicenet, profibus stuff etc, very good

Sixnet has Ethernet based i/o modules that uses the Modbus TCP protocol.

Automated Solutions (and others) has an ActiveX library for Modbus TCP.

http://www.sixnetio.com/html_files/products_and_groups/io_ethertrak.htm

http://www.opto22.com/products/productfamilies/pf_snapenet.aspx

http://www.bb-elec.com/product_multi_family.asp?MultiFamilyId=12