The Model 9009 multi-function Modbus RTU interface board controls RS-232 and RS-485 Modbus RTU devices and allows control of temperature chambers and other Modbus slave devices via an Ethernet, GPIB, USB source, or test system. Its Ethernet port supports VXI-11 and raw socket protocols, Modbus TCP/IP conversion, and an internal HTML web server. The 9009's WebServer includes a Control Page that lets users enter 9009 or device commands from any web browser. The 9009 does all of the Modbus RTU packet formatting and handles the response packets. Pricing for the Model 9009 is $495 each. A datasheet is available at http://icselect.com/pdfs/9009_ds.pdf.