vxi chassy not seen

[birillo]

The configuration :

I have a Teradyne Board Test system with 4 VXI chassy connected togheter, every chassy has is VXI-MXI-2 controller,

also in every chassy we have 10 VXI Teradyne boards.

everything drived from a HP PC pentium-4  2.8 Ghz , and PCI-MXI interface.

Installed NI-VXI 3.3.

VXI-MXI-2 controller   in chassy-0          p/n 183345E-3   rev.003  ECO # 10787

VXI-MXI-2 controller   in chassy-1-2-3    p/n 183345E-3   rev. 2

The problem :

sometime , at the power-on , all the boards in all chassy are not seen, using NI-Measurement&Automation Tool

somethime this appen also during the normal system usage, all the vxi-chassy disappear.

Some test :

trying VXI-MXI-2 controller p/n 183345E-3   rev.003  ECO # 10787, one at the time , in all the 4 chassy,

and cycling off-on-off the power, works all the time, and all the time the boards are seen.

trying

VXI-MXI-2 controller  p/n 183345E-3   rev. 2,

one at the time , in all the 4 chassy, and cycling off-on-off the power,

often the board in the chassy are not seen.

using only chassy-0  with VXI-MXI-2 controller p/n 183345E-3   rev.003  ECO # 10787

connected to the PC , no problem at all.

any revision issues between the controllers and the PC interface ??

[Ricca]

Hi,

There are no revision issue between the controllers and the PC interface, even if this situation seems to be related to a sort of malfunctioning  dued to controller type and host machine. How often daes it happen?

Has this problem been always present since the system starts working with that PC interface?

Have you already try to reinstall NI-VXI on these controllers?

Let's me know.

Riccardo

[birillo]

hi,

How often daes it happen?   it is very random, sometime the system works for weeks, and in the middle of operations, all the vxi-chassys

                                              are not seen, just disconnect some VXI cables, and run resman, everything is seen again.

Has this problem been always present since the system starts working with that PC interface?   yes,

Have you already try to reinstall NI-VXI on these controllers?  no I did not re-loaded any sw , tell me more on this..

I have also the suspect of the system power supply generating the voltage for the VXI chassys, but already replaced and monitored.

thanks 

[birillo]

hello,

additional info that make me suspicius on the hardware, is that with only the PC connected to 1 vxi-mxi slot-0 controller,

in 1 vxi chassy, ( instead of 4 slot-0 controller connected),

everything is seen all the time, no random  problem at all.

thanks and regards

[Ricca]

Hi,

Have you already verify that the configuration procedure of VXI-MXI-2 has been realized correctly?

Is an unique local address  associated to every chassi? Concerning this aspect, you can find a guideline at this link:

http://forums.ni.com/ni/board/message?board.id=350&message.id=1133

Besides, what daes it happen exactly? The chassi  or the boards inside disappear?

Let's me know.

Kind regards.

Riccardo 

[kcoggins]

Are you by chance using removable hard drives?

Have you contacted Teradyne directly about this issue?

Best regards,

Kevin C.