Jump to content

G4+ to G4X Canbus


Recommended Posts

Unless I'm reading the software wrong it looks like there were some changes between the G4+ CAN parameters and the G4x.

Example: IAT

G4+ : Min -50, Max 150, Display Offset 50 (all degF)

If I put 75 in the test calculator for a PClink Display data I get CANbus Data of 125

G4X : Min -50, Max 500, No Display Offset listed

My dash was displaying an incorrect IAT which is what led me to look at this so I'm assuming there really is a change and that there isn't a default offset...

Is there a list of CANbus parameters that have changed? or am I missing something? Basically I import all my g4+ streams into my g4X and I'm seeing incorrect values.

Link to comment
Share on other sites

Yep the scaling of custom streams has changed quite a bit, all the predefined streams are the same.  

Im not at a pc today but it is explained in the help file.  In G4+ all channels had some hard coded scaling.  In G4X they go out exactly as you see on the screen.  

So an example:  

batt voltage in G4+ had a hardcoded multiplier of 100.  So 12.67V would go out over CAN as 1267.  With G4X it is not scaled at all so if you sent without a multiplier 12.67V would go out as just 12 (everything is truncated to an integer for CAN).  To make this the same as G4+ you would need a multiplier of 100.

You can use the test calculator to see how it works.

if you want to attach your lcs files I would be happy to convert if you get stuck.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...