Eurotherm
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How do I configure LINOPC/NTSE to talk to a LIN instrument over a router?

How do I configure a LINOPC port to talk to a LIN instrument over a router?

Router technologies can stop broadcast messages. Europrp normally uses broadcast to find the instruments on ELIN. The solution is to use direct messages. To configure this we need to setup the Network.unh file.

On the EurothermSuite side of this configuration, the section called PR needs to contain the IP address of the LIN Instrument you need to connect to, and "AllSubnet" should be on:

 

[LIN] #Controls whether LIN can communicate across subnets - default is "off" AllSubnet=on [PR] #A list of IP addresses (OUTSIDE the local subnet) with which it is #desired to communicate. This section may be omitted if not required. IP=149.121.165.161 
And the Protocol Name has to be the same as on the LIN Instrument (default = NET).

The network.unh file is normally located under C:\Program Files\Eurotherm\LINOPC. This needs to be copied into the C:\Windows\System32 folder (this action not required from EurothermSuite 4.2 onwards).