I'd like to have 'total fuel used' slapped into my datalogs.
This is a '727 running $8D.

Looking at the definition file, byte 49 and 50 is the MSB and LSB (respectively) for 'running total of fuel delivered'. The equation is then time (usec) = ([N49]*256 + [N50])*15.26. Is there somehow, in TP, that I'm not seeing how to use this data, both MSB and LSB. If not, how about using [byte 49]*256*15.26 and then [byte 50]*15.26 seperately....and then what, can they be added somehow in TP? I'm not seeing it, maybe someone could help me out?

 

Whoops, forgot the second part of the post.

What is wrong with my total distance traveled? In the definition file, byte 51 is the accumulated distance traveled, where miles = N/2000. So setting it up in TP, multiply by .0005 should give me what I want. Looking at the datalog, it runs up to 0.13 then resets after every instance of reaching 0.13. Why?

 

Both of the values will roll over. Once the distance traveled reaches 255, the next click is 0. You need to keep a running track of the values and handle the rollover. I don't believe the current version of TP will do that.

RBob.

 

RBob is correct. I'll have to add provisions for counter rollover in the ScannerPro code. This will also be critical for knock count histograms, etc, for keeping running total of knocks in the various histograms cells.

 

Thanks, that would be awesome. I wanted to be able to calculate mileage from it. Have you thought about customizable functions, such as mileage where you could take the accumulated mileage over accumulated fuel used (which you could get from acc. BPW)?

Off topic but I plan to (some time) put in some sort of data display. I was thinking of using a microcontroller and LCD module and writing my own software to output sensor and other data to the LCD but the way your newer software is looking, I may just use it, running on an old laptop, output to a small LCD monitor. Be a lot easier anyhow. Eh anyhow I'm done with my tangent.

 

ScannerPro has this.

 

Nice, I haven't looked too far into SP, so I must've missed it.