National Instruments GPIB-PC - page 158

Section Four A BASICA/QuickBASIC GPIB-PC Function Calls
©National Instruments Corp. 4A-83 GPIB-PC User Manual
BASICA/QuickBASIC BASICA/QuickBASIC
IBTRG IBTRG
Purpose: Trigger selected device
Format: CALL IBTRG (BD%)
Remarks: BD% specifies a device.
The IBTRG function addresses and triggers the specified
device, then unaddresses all devices on the GPIB.
IBTRG calls the board IBCMD function to send the
following commands:
• Listen address of the device;
• Secondary address of the device, if applicable;
• Group Execute Trigger (GET); and
• Untalk (UNT) and Unlisten (UNL).
Other command bytes may be sent as necessary.
Refer to the IBCMD function for additional information.
Device Example:
1. Trigger the device ANALYZ%.
100 CALL IBTRG (ANALYZ%)