I have taken a guess at the address of the Process variable, as I do not have a Eurotherm 3508.
opc:/Eurotherm.ModbusServer.1/ID001-3508.Main.PV
opc:/Eurotherm.ModbusServer - leave as is
1 - the modbus number is hidden away in a settings page somewhere. I can't for the life of me remember where though
ID001-3508 - This ID number and device name is used extensively around iTools when the device is connected.
The rest of the address is the process variable you are interested in. Just browse through the tree structure to find it.

Message Edited by yenknip on
06-23-2008 11:50 AM
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- Cheers, Ed