Configure Your Software with IBCONF
Chapter 5
GPIB-232CT-A for MS-DOS/Windows 5-12
© National Instruments Corp.
only for the purpose of informing the driver of its value so that
I/O can terminate correctly.
The default option for this characteristic is
00H
.
Set EOI at End of Write
Some devices, as Listeners, require that the Talker terminate a data message
by asserting the EOI line with the last byte. A
yes
response causes the
GPIB interface board to assert the EOI line on the last data byte. The
default option for this characteristic is
yes
.
System Controller (Board Characteristic Only)
This field appears only on the board characteristics screen. The System
Controller in a GPIB system is the device that maintains ultimate control
over the bus. There should only be one device designated as System
Controller in any GPIB system. The default option for this characteristic is
yes
.
Assert REN when SC (Board Characteristic Only)
A
yes
response to this field causes Remote Enable (REN) to be asserted
automatically whenever the board is placed online, provided that the board
has been given System Controller capability. If a
no
response is provided,
an explicit call to
ibsre
is required to assert REN. The default option for
this characteristic is
no
.
Enable Auto Serial Polling (Board Characteristic Only)
This option enables or disables automatic serial polls of devices when the
GPIB Service Request (SRQ) line is asserted. Positive poll responses are
stored following the polls and can be read with the
ibrsp
device function.
The default option for this characteristic is
no
.