Follow these guidelines when using the GPIB/GPIB 488.2 Library.
The Status control displays in hexadecimal format. The function panel help for the Status control explains the meaning of each bit in the status word. If the most significant bit is set, a GPIB error has occurred.
When an error occurs, the Error control displays an error number. The function panel help for the Error control describes the type of error associated with each error number.
The Count control displays the number of bytes transferred over the GPIB during the most recent bus transfer.
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Note When writing instrument modules, you must use the Device Manager functions, OpenDev and CloseDev, instead of ibfind or ibdev. You also must use the Device Manager functions in application programs that make calls to instrument modules. The Device Manager functions allow instrument modules to open devices without specific device names, thereby preventing device name conflicts. These functions also help the LabWindows/CVI interactive program ensure that devices are closed when they are no longer needed. |