Channel on USB logger list yet doesn't appear in AemData | AEM
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kb58
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Channel on USB logger list yet doesn't appear in AemData

Running a -6 Infinity and have not yet upgraded to the most recent rev.

Went into Logging > USB Logging - Channel Setup and selected the following signals: MAP [kpa], Throttle[%], Lambda1, and KnockCyl1_Raw - KnockCyl4_Raw.

Took the car out on a run then downloaded the log files. In AemData, all the above signals appear - except for Lambda1. Doesn't AemData automatically list all the available signals on the right side? What happened to Lambda1, must it be added to the AemData list somehow? Is this a known bug, and if so, is there a work-around?

 

AEM_NS
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Are you on v96 or v96.1?

Are you on v96 or v96.1?

kb58
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V96. Are you asking because

V96. I'll double-check but don't remember seeing any AemData app changes listed in the V96.1 release notes. Are you asking because there is a known issue?

AEM_NS
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Nope, not a known issue.  I

Nope, not a known issue.  I've personally logged and looked at Lambda1 from v96 on AEMData many times from my race car without issue.  I asked about v96.1 because "Lambda1" doesn't exist in v96.1 - it's now "Lambda1 [Lambda]" which is a different channel and won't be recorded if you loaded a log list from v96 into a box running on v96.1.  Are you 100% sure you have Lambda 1 in your log list?  Are you really only logging 7 channels?  Maybe add a bunch more and see if there are any other channels that don't seem to be getting logged.    

kb58
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I guess I'm your dumbest

I guess I'm your dumbest customer...

I'm still running V96.

Since starting this thread, I've added additional signals to log and every time, not all of them appear. I think the problem is the steps I'm taking in configuring USB logger. Here's what I'm doing, please tell me what's wrong:

1. Open an existing tune.

2. Go to USB Logger - Select channels.

3. Load the logger list I want.

4. Check that everything I want is on the list - including the troublesome "Lambda1."

5. Save the list.

6. Send tune to Infinity.

7. Go for a drive.

8. Get home and download logs.

Without fail, some of the signals aren't there. I've done probably half a dozen test drives and have yet to see Lambda1 appear. If I go back and check the saved logger signal file, sure enough, it's not there. Apparently I don't know the secret squirrel handshake you guys know because you work with this everyday...

What am I doing wrong?

AEM_NS
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Remember that PC logging and

Remember that PC logging and USB logging are two different things.  You started the thread with USB but now say PC - I'll assume you're still talking about USB logging.  

First, try setting up the channel list while on hardware and not in a saved session.  Second, saving the list merely saves the list as a separate list that you can then load later.  Saving doesn't set the channels for the logger.  If you click save, save the file with a name, and then close the channel setup window, you didn't assign any channels to the logger.  You have to be sure to click OK when you're done.

kb58
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Thanks.

Thanks.

Dang it, yes, USB logger, I'll go back and fix that.

I just have to get the sequence of steps down that you guys inherently know.

So it only get uploaded to the target when Save is hit, correct?

AEM_NS
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Save only saves the list in

Save only saves the list in an "offline" list that can then be uploaded some other time when you want to use an already existing list.  It does not set the channels selected as the channels to be logged.  Be sure to click on OK after selecting/adding channels to be logged.  Clicking save without clicking OK will only save the list, not apply the channels to be logged.

kb58
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I guess I'll figure it out

I guess I'll figure it out eventually, but this could help others.

I know that clicking SAVE saves the log signal set on the PC. However, what does clicking OK do?

1. Is that when the log signal set gets sent to the Infinity? If so, that means it must be connected, else there'll be no indication that the upload failed, correct?

2. Is that when the log signal set gets attached to the currently open tune? If so, that would mean that even if the tune is currently unchanged, it has to be saved else the signal set won't stay attached. Yes, no?

3. If it get attached to a tune and the tune is saved, does that mean that when "Import Calibration Data" is clicked, the log signal set gets sent over to the Infinity along with the tune?

4. How can I confirm what USB logger signals are currently present inside the Infinity?

You can probably guess why I'm still asking. Went out for a fairly long tuning session only to discover that the latest logger additions weren't there. They are present as part of the log signal set, but never made it over to the Infinity.

AEM_NS
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Personally, I only ever set

Personally, I only ever set USB log channels whiles while comm'd up to hardware.  That's the one sure fire way to make sure the channels get assigned and that's also the one sure fire way to check to see which channels are being logged.  I'll have to dig up the details of setting up the log channels offline and then importing and such but in the mean time, why not just setup and check the channels live?

kb58
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How can I check USB channels

How can I check USB channels live? Or, is this one of those "RTFM" moments?

I found this in the manual:

... the list of channels for logging is saved in ECU memory. Channels can't be selected offline. They can only be selected when connected to an ECU.

I'm still confused by this, because when I went back and checked, all the channels I wanted logged had checkmarks by them, yet some still didn't appear when plotted.

I just want to know the instant that the selected list gets transferred over to the ECU's internal memory, that way I'll have it straight in my head and won't have to nag you guys any longer. 

AEM_NS
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When you went back and

When you went back and checked when?  Did you checked a saved session or when comm'd up live with hardware?  

kb58
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Oh I see it, under Logging >

Oh I see it, under Logging > Goto Live Data, right?

What's unclear is whether clciking on Live Data displays PC logging variables, or USB logging variables. Are you saying that Live Data displays the variables listed under USB logging? The manual doesn't specify which.

AEM_NS
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Goto Live Data just makes the

Goto Live Data just makes the layout channels read live after browsing through a log.  Go Logging>USB Logging - channel setup when live with hardware.  USB logging channels and PC logging channels are completely different.  PC are the channels you see live and USB are the internal channels you set.  Goto Live Data shows live PC channels.

kb58
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That's what I thought, and it

That's what I thought, and it's why I asked how I can watch the logged USB channels live, since you said I could.

AEM_NS
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That wasn't what I said.  I

That wasn't what I said.  I said you can check them when comm'd up live with hardware, not see them being logged live.

kb58
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I based that on this:

I based that on this:

AEM_NS wrote:

..., why not just setup and check the channels live?

Guess I misunderstood. 

AEM_NS
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You're still not getting it.

You're still not getting it.  You check the channels that your going to USB log while comm'd up live with hardware.  Do exactly as I've explained before - Go Logging>USB Logging - channel setup when comm'd up with hardware.  Select the channels you want to log and then click OK.  You should not be doing this offline with a saved session because it will not assign the channels.  Just like you've quoted, setup and check the channels while LIVE with the Infinity.  Check it once, setup the USB logging start/stop conditions in the wizard, and you shouldn't have to mess with it again.  It's honestly very easy.