Measurement Computing GPIB-488 - Manual (Page 24)

Chapter 3 GPIB 488.1 Library Reference
GPIB-488 3-11 Programming Reference Manual
IBCONFIG
Changes configuration parameters.
Syntax
C ibconfig (int boarddev, unsigned int option,
unsigned int value)
Parameters
boarddev is an integer containing either a board handle or device handle.
option is a number which represents the configuration option to be changed. See Table 3-3.
value is the new configuration option value. Allowed values differ according to the option
being programmed.
Table 3-3. ibconfig Options
Option Valid for Description
IbcPAD bd or dev New Primary Address. Available primary addresses
range from 0 to 30.
value can be from 0 to 30 decimal.
(See ibpad .)
IbcSAD bd or dev New Secondary Address. There are 31 secondary
addresses available.
value can be 0 or from 96 to 126
decimal. (See ibsad .)
IbcTMO bd or dev Timeout Value. The approximate time that I/O
functions take before a timeout occurs.
value is a
number from 0 to 15 which corresponds to timeout
values ranging from 10 usec to 100 sec. (See ibtmo)
IbcEOT bd or dev Enable/disable END message. If this option is enabled,
the EOI line is asserted when the last byte of data is sent.
If
value = 0, then the EOI line is not asserted. If value
is non zero, the EOI line is asserted.
IbcPPC bd Parallel Poll Configure. Redefines the parallel poll
configuration bytes.
value can be 0, or from 96 to 126
decimal.
IbcREADDR dev Forced re-addressing. If value = 0, forced
re-addressing is disabled
non zero = Forced re-addressing is enabled.