National Instruments GPIB-PC - Manual (Page 212)

IBIC Section Five
GPIB-PC User Manual 5-24 ©National Instruments Corp.
Write the function, range, and trigger source instructions to the DVM.
Be sure an error has not occurred before proceeding with the sample
program.
Example:
GPIB0:
[01A8] (cmpl lok cic tacs)
count: 6
ibwrt "F3R7T3"
Send the group execute trigger message (GET) to trigger a
measurement reading. The GET message is represented by the hex
value 8.
Example:
GPIB0:
[0188] (cmpl lok cic atn tacs)
count: 1
ibcmd "\x08"
Wait for the DVM to set SRQ or for a timeout; if the current timeout
limit is too short, use
IBTMO to change it.
Example: