Thank you, Marni,
Using MAX, I found some information as follow:
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Instrument0
Primary Address = 9
Secondary Address = 96
Identification: HP E1300A,0,A,07.00
Instrument1
Primary Address = 9
Secondary Address = 99
Identification: HP E1326B,0,A,05.00
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If run the HP E1326 driver example VI, the logic address and GPIB address are required to determine. I am wondering how to determine both address?
when run the example VI, the err:1220 appears in the block diagram. What the possible problem and how to solve it?
Thank you very much.