Measurement Computing GPIB-488 - Manual (Page 42)

Chapter 3 GPIB 488.1 Library Reference
GPIB-488 3-29 Programming Reference Manual
IBONL
Enables/Disables a device/interface board for operation.
Syntax
C ibonl (int boarddev, int online)
Parameters
boarddev is an integer containing the device/board handle.
online defines whether the device/board is to be enabled/disabled. If online is non-zero,
the device/board is enabled for operation (placed on-line). This restores the board/device to
its default settings. Otherwise, the board/device is placed off-line.
Returns
ibsta will contain a 16-bit status word as described in Appendix B, IBSTA .
iberr will contain an error code, if an error occurred.
Usage Notes
When a device is placed off-line, it is "closed". This means that in order to perform any other
operations with this device, you will need to re-open it by calling the
ibfind or ibdev
routine.
Example
This example restores the configuration of a device at PAD 1.
C int Dev;
Dev = ibdev (0,1,0,13,1,0);
ibonl (Dev, 1);