Hello,
To power-cycle a VXI chassis without rebooting the host computer, you
must explicitly tell theNI-VXI software to take theVXI-8340 series system
offline. When you take the VXI system offline, the NI-VXI driver saves
important configuration information about the state of theVXI-8340 series,
so that this state can be re-established when you restore power to the VXI
chassis. Placing the system offline also prevents the NI-VXI driver from
trying to communicate with the VXI-8340 series while the MXI-3 link is
down. While offline, the VXI-8340 series is inaccessible to applications.
The ONLINE front-panel LED turns off when the VXI-8340 series is
offline.
Note It is safe to remove power from a VXI chassis only after the VXI-8340 series is
offline. Failure to take the controller offline before cycling power can lock up the system.
There are two ways to place a VXI-8340 series controller in the offline
state. First, the VXI-8340 series includes a Request Offline button on the
front panel. This button is useful if the VXI chassis is separated from the
host controller by a great distance. Second, a Request Offline option is
available in MAX by right-clicking on the VXI System icon under the
Devices and Interfaces view.
To bring a VXI-8340 series controller back online, use the Go Online
option inMAX by right-clicking on the VXI system icon under the Devices
and Interfaces view. Choosing Go Online tells the NI-VXI software to
restore the state of the VXI-8340 series to its pre-offline values.
The ONLINE front panel LED turns on when the VXI-8340 series is
online. At this point, it is safe to access the VXI interface.
Note You cannot leave a VXI system offline across a system boot. You can bring a VXI
system online only if that system was present when the host computer was last rebooted.
Please let me know if this answers your question.
Originally, it sounded like the host computer was actually rebooting rather than the controller itself. I'm going to assume this was my misunderstanding. If the Request Offline option is actually causing the host computer to reboot (rather than taking the controller offline), than I will need to know what drivers you are using and the exact reproduction steps I can follow in attempt to recreate the symptom locally.
Best Regards,
-Joe Des Rosier-
National Instruments
