Chapter 2
Configuration and Startup Procedures
2-22
ni.com
If the logical address is set to FFh in nonvolatile configuration (the DIP
switch cannot set the logical address to FFh), the GPIB-VXI/C will
participate in dynamic configuration. Otherwise, the GPIB-VXI/C is a
static configuration device.
Non-Slot 0 Message-Based Device Operation
At startup, a GPIB-VXI/C configured as a Non-Slot 0 Message-Based
device performs its self-tests. It then waits until it receives its
Device Grant
and
Begin Normal Operation
Word Serial commands. The RM grants any
logical addresses to the GPIB-VXI/C that reside within its Servant area.
When it responds to the
Begin Normal Operation
command, the
GPIB-VXI/C enters its normal mode of operation.
Front Panel LED Indications for Message-Based
Device Operation
The GPIB-VXI/C indicates the progress of its self-test with the
FAILED
,
TEST
, and
ON LINE
LEDs. The LED indications are shown in Table 2-13.
A successful system startup sequences through the first five states.
The point of failure is indicated for states in which the
FAILED
LED is
Table 2-12.
Non-Slot 0 Message-Based Device Operation Switch and
Jumper Settings
Jumper/Switch
Position
Function
Switch S15
OFF
If S5 is ON, the GPIB-VXI/C sources
CLK10 at the front panel EXT CLK
connector.
Switch S22
OFF
VXI BTO disabled.
Switch S23
OFF
Bus arbiter and SYSCLK disabled. CLK10
receiving from backplane.
Switch S24
OFF
MODID pulled down.
Logical Address
Refer to Chapter 4,
.
Logical address is not equal to 0. Set in
nonvolatile configuration or by using
DIP switch SW1.
Non-Slot 0
Model Code
Refer to Chapter 4,
.
Model code is set to the Non-Slot 0
value. Set in nonvolatile configuration.
Servant Area
Size
Refer to Chapter 4,
Set appropriate Servant area size.
Set in nonvolatile configuration.
