National Instruments GPIB-PC - Manual (Page 220)

Section Six IBIC
©National Instruments Corp. 6-5 GPIB-PC User Manual
Applications Monitor Options
When displayed, the applications monitor allows you to view the
parameters of the current GPIB call, change the display and trap modes,
and scan the GPIB session summary. The monitor displays the
following information pertinent to the current GPIB call:
Device symbolic device name.
Function GPIB-PC function mnemonic and description.
Value for functions that have a number as their second
parameter, this contains its value, otherwise it is
undefined.
Count for functions that have a count as their third
parameter this contains its value, otherwise it is
undefined.
IBSTA contains the GPIB status information.
IBERR contains the GPIB error information, or the
previous value of the value parameter if no error
occurred.
IBCNT contains the number of bytes transferred.
Buffer for functions that have a buffer as a parameter, this
Value displays its contents. Each byte of the buffer is
shown with its index, character image, and ASCII
value.
Status shows the state of the individual bits of IBSTA . A
"*" indicated the bit is active. The active bits of
the trap mask are highlighted for easy
identification.
Error shows the state of the individual bits of IBERR . A
"*" indicates the bit is active.
Information contains any message concerning the current GPIB
call.