I am using VBA excel with GPIB command.
Two instruments A and B talk to each other through buses controlled by firmware in A and B seperately. After talk, results displayed on screen of instrument A.
I can read result through GPIB connected with A correctly:
I used VBA:
call GPIBinit
call ibwrt (xxx,xx)
call ibrd(xxx,xx)
But I noticed part of the screen on A is blank now.
I understand I have to release control, so A and B will talk to each other correctly. I used:
call ibwrt(xxx, "*CLS")
call ibwrt(xxx, "*RST")
call ibwri(xxx, "GTL")
close visual basic code window
None of them working, I have to close excel sheet.
Can any one tell me which command to used at the end of sub to release the control? I don't want to close excel each time.
Thank
Mindy