Monitor IEEE1588 network two 6682 boards

[bbauvir]

Hello,

I have a distributed application synchronized by means of IEEE 1588 over a switched network. In order to monitor the health of the network, I use two PXI-6682 boards, one acting as a master clock and the second as slave connected through an Ethernet switch and monitor the time jitter between a 1PPS signal generated on both boards. This would ideally be a feature of my master clock node itself for which I would ideally fit the two 6682 boards in the same chassis, configure one as master clock, the other as slave clock and connect both to my Ethernet switch.

The PXI controller gets confused if I insert the two boards on the same chassis. I have not found any information on how to manage this configuration or whether this is altogether possible.

B.

[JoshuaP]

What OS are you running.  Windows 2k and XP pre SP2 both have problems with multiple network cards in one system.  If you are using 2k you will have to update to XP and if you are using XP make sure you are using SP2.  If you have all of that configured correctly it should work fine.  I've tested up to 5 6682's in one chassis and it seemed to work fine on XP SP2.

-Josh

[bbauvir]

Hi, Thanks for your inputs.

I run XP SP2 and LabVIEW 8.5.1. I have no issue related to the NIC function of the 6688 board. XP recognizes I have 3 Ethernet ports (8106 integrated NIC and the two 6682). The problem seems related to DAQmx. If I open MAX, I see the two boards on the PXI chassis (slot 2 and 3) but only one appears on the DAQ devices (slot 2) and when I configure it, the configuration ends up being applied to the slot 3 board.

In XP device manager, the two boards appear under NI Data Acquisition Device but I can only reliably use the first board in slot 2 if I disable the other one in the XP device manager.

I am therefore unable to get the application I need, i.e. get two IEEE 1588 nodes on the same chassis (though the two Ethernet NIC are working properly).

Cheers,

B. 

[Adam_U]

Can you try choosing "uninstall" from the device manager for each of the AMD ethernet ports? Once they're uninstalled, scan for new hardware and allow the driver to attach to them again. Let's see if that resolves the issue.

Thanks,

-Adam

[bbauvir]

Hello,

Thanks for your input. I appreciate your help. I needed to do something a bit different but it eventually solved the issue:

On the XP Device Manager ,

- Uninstall the two PXI-6682 devices under Data Acquisition Devices

- Uninstall the two AMD devices under Network adapter

- Scan for new Hardware 

- Disable the two PXI-6682 devices under Data Acquisition Devices

On MAX,

- Delete the broken PXI-6682 under NI-DAQmx Devices

On the XP Device Manager,

- Enable the two PXI-6682 devices under Data Acquisition Devices

On the good side, the issue is solved and the configuration survives the controller reboot. On the other side, I am very worried about having to apply such tricks to get this system working. 

Cheers,

B.