Hydronix Ethernet Adapter, User Manual

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Chapter 2 Connecting with Sensors
Hydronix Ethernet Adapter User Guide HD0333 Rev 2.1.0 19
4 Programming
An installation using the Ethernet Adapter packs the messages sent from a Host to the Sensor
into an Ethernet data packet, which is then unpacked by the Ethernet Adapter and converted into
RS485 voltage levels. If a custom application is being written to communicate with Hydronix
sensors over the Ethernet, then the Hydro-Link communications protocol should be implemented
and the resulting message string sent over the network to the Ethernet Adapter (instead of a
serial port). In Visual Basic (VB6) this is done using a WinSock control and in Visual Studio .NET
this can either be done using a Sockets control or a TCP Client control. A connection should be
made from the Winsock or TCP Client control to port 10001 on the Adapter.
Further information on these controls can be found in the programming system documentation.
Although Hydronix is able to provide guidance they may be unable to give detailed technical
support for developing custom software applications.
Hydronix are currently developing a Class Library for .NET to implement all of the
communications functionality including support for the Ethernet Adapter, which will be available
upon request. For details of this and more information on the Hydro-Link Communications
Protocol please contact Hydronix Technical Support (support@hydronix.com)