How do I set IO Protocol to Serial-TCPIP/488 (4)?

[Schliepe]

We are trying to communicate to an instrument that can accept GPIB commands over Ethernet.  We have gotten things as far along as possible and changed everything within the vendor code to allow us to use a TCPIP VISA session, but we get an error when the code calls the VISA Read STB.  The help on the VISA Read STB implies that if we can set the property IO Protocol to Serial-TCPIP/488 (4) all should be just fine, but we're having a tough time finding how/where we would find the place to do that.  Any help would be appreciated.  Thanks,

Erich

[GovBob · Accepted solution]

My guess is that they are referring to creating a VISA  property node on the block diagram under Functions>>Instrument I/O>>VISA>>VISA Advanced>>Property node. Lay down that function and right click the 'property' and select Properties>>Message Based Setttings>>IO Protocol. Right click the IO Prot block and change to write. Right click again and create constant. Choose 'Serial-TCPIP-USB/488 strings'. This is the forth selection in the list.

Hope this helps.

Message Edited by GovBob on 02-11-2009 05:24 PM

[Schliepe]

Thank you, that is indeed the information I was looking for.  It turns out that the vendor code we had did something else goofy and we'll have to fix that, but now we know how to do this.