Send same message to different device

[paul821102]

Here is my case:

In my program ,there are two PS3,I want to control the two equiments do the same thing.eg.I want to get the IL(Insertion Loss)/PDL at the same time. Can I config the two PS3 different address and send the same VISA command.I try to do this ,but failed.

Any suggestion?

[TiTou]

Hello,

I think you need to use 2 times the VI "config COM port" located in "Instrument I/O" >> "Serial" >> "VISA configure Serial Port" (in LV7.1, will be slightly different in LV 87 ;))
And use the 2 Com Ref with 2 VISA write to send the same command at the same time.

Hope this helps 😉

[paul821102]

I say,does the time is less than send the command one by one,and how about the speed to read the display?

eg.If the two PS3 display diferent values, how can I get the different value at the same time.

If this make sense ,I'll save a lot of time.

[TiTou]

Would that VI be ok ?

[paul821102]

Thank you,I'll have a try!