Sent you an email, thanks. 

Try downloading again now. I don't know why that option was not enabled in the old code, I enabled it now. 

I am a little careful about sharing this code, but send me a mail at jostein@yourdyno.com explaining your ideas.

Thank you, Jostein.  I now have that .dll file working and the old CANTool is functioning.  

But, the "Announce YourDyno Data on CAN bus" and two MSGID fields are grayed out.  I don't see how to enable this selection with this version plug in.  In the software download I have from late 2020, CANTool has the button "Announce YourDyno Data on CAN bus" and one CANID field.  It can be checked and turned on and the ID can be changed.  I do see the one message on my MaxxECU CAN Analyzer tool.

So, I have gotten three versions of CANTool to function so far.  Oldest one (maybe), which is what you have just provided.  I cannot turn on the 2 CAN message outputs with this.  Another version from the download in late 2020 which is able to send one message.  And the current one loaded with software download which is not able to send any message.

I have just spent some time learning what version of Visual Studio to load and what workload to go with it.  I have an idea that I could modify the current plugin and have it send out those two messages by seeing how the older plug in works.  I obviously have a lot to learn, though.

Can you advise?  Is modifying the current plug in to add this functionality even a possibility?  

Thanks!

@kurt you are right, this was changed back in 2020. 

I recompiled the old CANTool to work with the newest version of YourDyno, it is here.

Replace the CANTool.dll in the folder C:\ProgramData\YourDynoPlugins with this .dll file to use the original CANTool plugin.

Cheers

Ow thats a quick fix! Ill give it a try as soon as I have the engine back together. Is there a way to filter or make a rolling average of channels? For example I have a delta pressure sensor off a DPF connected between the engine and the muffler to get an idea of the muffler backpressure. The pulses of the exhaust although make the voltage and thus number on the screen extremely hard to read so if i could filter it for 500 msec or 1 sec or so that would fix it.

You are right, @rub87, thanks. It will be fixed in the next release. If you are in a hurry, download this file https://yourdyno.com/M athChannels.dll and place it in C:\ProgramData\YourDynoPlugins and start YourDyno again. 

It seems there is a bit of a bug in the Math Channel plugin. Lets say one defines in line 1 a formula and then wants to use the result of that formula in line 2 it works. but if one closes and re opens the software it complains about a syntax error and all formulas where a result of another formula is used are automatically discarded. Even if the the source formula is higher in the list (assuming it would compile the list from top down)

Ok so we got it work using these formulas. Maybe it could still be good if Bmgjet could just add a checkbox in the CANTool window to treat a certain message as being float IEEE754. Lets say some users have a CSM thermo scan and have like 16 channels if they would have to do this for 16 channels it could get a bit messy.

A friend of me helped a bit and it is going into the right direction. this formula works now only when lambda goes below 1 the output is still wrong, but were getting there

(((((int)"Lambda_CANc.LAM" >> 31) & 1) == 0) ? 1.0f : -1.0f) * (1.0f + (((int)"Lambda_CANc.LAM" & 0x7FFFFF) / (float)(1<<23))) * (1<<((((int)"Lambda_CANc.LAM">>23) & 0xFF) - 127))

The window help specifies to look about the microsoft math class so if I look it up on google I come here and this say I should be able to write Hex(value) which should give me the a string with the number in hex, but the window doesnt accept die hex( so im already stuck before I started ????

Ok thanks for the tip!, Ill give it a go tomorrow and report back

Thanks, @rub87.

It is possible to create a math channel for this. To make it easier you can create one for the Exponent and one for the Significant (by and'ing and shifting and applying an offset if needed) and create the final number with "Significant" * Math.Exp(10, "Exponent"). It may be Math.Exp(2, "Exponent"), I don't remember the IEEE 754 by heart

Hi, first off big thanks and thumbs up for the effort put into this with great results.

I posted this also on the main plugin page just to realize I had better posted it here as probably not a lot of people read or get updates about the main page

I tested the CANTool plugin and it works fine and intuitive for me for most common can signals having data in raw hex format sent on the bus. Although I acquired a relative high quality lambda meter of the brand ECM and it is outputting data in 32 bit floating point according to IEEE 754

the data in a packet looks like this in the log MSGID: 0x190 Packet: 75 84 3b 42 75 84 3b 42

Here I put 2 times the same channel (lambda) on one ID each being 4 pads wide. this then means 0x423b8475 in hex and if we decode it to decimal it represents lambda 46.87935256958008, (sensor was just hanging in free air)

Another example from the manual:

Lambda = 0x3F99C663 = 1.20137

O2 = 0x4054FDF2 = 3.32800%

here is a link to the manual of the unit (look on page 12) https://ecm-co.com/download/lambdacanp-manual/?tmstv=1684210188

here is a nice handy web page that does the 32bit floating point to hex or decimal https://babbage.cs.qc.cuny.edu/ieee-754.old/32bit.html

It would be cool if you could implement the option to decode the floating point as most recent high (er) end can modules also use this format, like for example the whole CSM CAN Minimodules used by many OEM car makers and engineering companies.

thank you and best regards,

Ruben