Download Artisan Technology Group HP E1368A/69A/70A Specifications

Starting System Operation
The resource manager completes the configuration sequence by issuing the
"Begin Normal Operation" (BNO) command to all top level commanders
and to each of its direct message based servants. BNO is not sent to register
based modules. The module receiving BNO responds by writing its status
to the Data Low Register which is read by the resource manager. More
information on BNO and on the Data Low Register can be found in the
VXIbus System Specification.
If the command module is in a system where it is not the resource manager,
it sends BNO to each of its message based servants once it receives BNO
from its commander.
VXI SYSFAIL* Line
One of the signals on the VXI backplane is SYSFAIL*. This signal is intended
to indicate that some VXI module in the system has failed. During power-on
or rebooting the HP E1406A, VXI modules may briefly generate the
SYSFAIL* signal. VXI modules that fail to operate may continue to generate
SYSFAIL* after the power-on period as an indication of the failure. Similarly,
modules that fail during operation of the system may also generate SYSFAIL*
when the failure occurs.
If the HP E1406A Command Module detects the SYSFAIL* after the
power-on period, it will automatically reboot. When this occurs, the
command module will not enable communication with any of the VXI
modules in the system. This is because the HP E1406A cannot determine
which VXI module has failed. Also, if IBASIC is installed, it will be
disabled. Only the System instrument will be enabled. This behavior is
intended to guarantee that you will recognize that a failure has occurred.
If this situation occurs, the SYSTem:ERRor? query will return the
Error +2129, "Warning, Sysfail detected".
To restore normal operation of the HP E1406A Command Module, you
must determine which VXI module has failed and remove it from the
system. After removing the failed module and cycling power on your VXI
mainframe, your HP E1406A Command Module will work normally.
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Configuring the HP E1406A Command Module
Chapter 2
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