interface to be stopped

[Madottati]

Hello,

I start a UDS diagnostic session on LIN using XNET and the Automotive Diagnostic Command Set. Everything works fine, but parallel to this I want to trace and log the bus activities. If I start a Frame Input Stream session to trace the traffic BEFORE starting the diagnostics, I get the following error message:

"Error -1074384610 occurred at Open Diagnostic On LIN"

"You attempted to perform an action on a session or interface that is started, and the action that requires the session/interface to be stopped. Solution: Stop the object before performing this action."

But if I first start the diagnostics, and start the Frame Input Stream session afterwards, it is working without error. I don't understand, why is the interface "locked" in one way, and free for the other way???

Is there any possibility to keep run the trace VI continuously, and in between start- and stop diagnostics without error?

LV2014 & ADCS 14

[Richard20]

Hello,

I saw that nothing happend here.

Is the issue solved in the meantime?

[Madottati]

Hi,

actually the problem is not solved. I want to keep a kind of "LIN monitor" open, to see the traffinc on the LIN. Then I want to open diagnostics, perform some tests, then close diagnostics. The LIN monitor must keep running, even when I close and open a diagnostic session again.

At launching the LIN Monitor, I create a Frame In Stream session, and I continuously read data from the session.

1. Open Diag --> Launch LIN Monitor --> works

2. LIN Monitor is running --> Close Diag (works) --> Open Diag not working, I get the above mentioned error at opening diag.

Any idea or workaroud?

[Richard20]

Hi,

have a look at these documents:

How Can I Passively Monitor a CAN Network Using NI-CAN Devices? - National Instruments
http://digital.ni.com/public.nsf/allkb/07EC80E3060B2CB586256DD0005ABA63?OpenDocument

How Can I Monitor the NI-CAN Bus? - National Instruments
http://digital.ni.com/public.nsf/websearch/567C4038A2CD279486256FCC00565D07?OpenDocument

Are these possibilities for you?

[Madottati]

Hi Richard,

thank you for the links. Unfortunately I can't use them, because I am using NI-XNET.

I have tried the shipped XNET Bus Monitor from NI. If I start that, I can't open diagnostics. I suppose this bus monitor works on the same manner as mine.

Madottati

[Gucky]

Hi,

please change the "Run Mode" of the BusMonitor to Subordinate and try it again.

The "Run Mode" setting is in the "Interface and Database Settings" dialog.

Hope this helps

[Madottati]

Hey Gucky,

this is exactly what I need! Could you tell me how to set the Mode=Subordinate property, if I write my own LIN monitor? I can't figure it out.

Madottati

[Gucky · Accepted solution]

Hi Madottati,

you can create a XNET session using "XNET Create Session (Frame Input Session).vi with the cluster option :subordinate:

Find more information in the "XNET Hardware and Software Manual.pdf" on page 4-62.