National Instruments GPIB-PC - Manual (Page 245)

Application Notes Appendix E
GPIB-PC User Manual E-2 ©National Instruments Corp.
Each computer finds the appropriate device and should respond as
follows:
Example:
Master Slave
SLAVE: GPIB0:
Step 3. Transfer Data
In this example, you must press RETURN on the slave before you press
RETURN on the master.
Example:
Master Slave
SLAVE: GPIB0: ibwrt "hello" ibrd 5
The master sends a data string to the slave, which should appear as
follows:
Master Slave
[0100](cmpl)
Count: 5
"hello"
Count: 5
NOTE: The read and write commands must be executed here within a
certain time limit of each other; otherwise the timeout factor which
comes at a default of ten seconds will abort the operation.