datasocket comms

[stu22]

Hi, im using datasocket vi to communicate(client opc) with an opc server over a network. I have figured out all the dcom settings for network plus security issues, one problem that reoccurs is that every so often labview hangs/freezes commnuicating with opc server. It would not be an issue but it does not time out. And stay frozen, field point manages to reset itself. Why doesnt this happen with this??

Stu

[muks]

What is your lv version?

[stu22]

version 8.6

[rsw]

Hi Stu,

Do you have all firewall settings turned off and valid quality information on the link? I'd recommend taking a look at  this Document just in case it is due to a disconnect from the OPC server side causing the issue.

Which OPC Server are you using, and on what Operating System? 

Kind Regards, 

[stu22]

Hi, all firewall settings are turned off and its an internal network with DCOM correct. With its own account. I do think its the OPC server which is hanging, because it also hangs its own OPC client that the OPC server is supplied with. Its supplied by thermo fisher for a PRIMA db Mass spec.

What would be nice to happen is if the Labview OPC client would timeout rather than hang. And return an error rather than it just hang waiting for the OPC server to respond.