Engine Guages

[iggy]

Thanks iggy

If you think about it, its a bus type network. That has not been used in 20 to 25 years. :shock:

 

[PanthersFan]

Every modern automobile is built on a bus network.


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[iggy]

Every modern automobile is built on a bus network.


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Not sure about cars, but I could see it. I was talking about computer networks in general. They general use shielded cable which is great for boats and cars or anywhere RF interference could take place. But now we have Cat 5, 6 and 7 which each one is less prone to that too. Cat 8 will be out soon.

Which goes back to the point. Bus networks where often found in homes and business, 10base2 years ago. Not any more, unless for some spacial or unusual reasons.

 

[PanthersFan]

Every modern automobile is built on a bus network.


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Not sure about cars, but I could see it. I was talking about computer networks in general. They general use shielded cable which is great for boats and cars or anywhere RF interference could take place. But now we have Cat 5, 6 and 7 which each one is less prone to that too. Cat 8 will be out soon.

Which goes back to the point. Bus networks where often found in homes and business, 10base2 years ago. Not any more, unless for some spacial or unusual reasons.

I’ve dealt with all of that in the past (and one you haven’t mentioned: IBM type-1 cabling with Token Ring as the network protocol.

You have to separate the network cabling from the protocol. Ethernet originally ran over a bus (10BASE5) and transitioned to star (point to point) over CATx cabling.

Bus networks aren’t better or worse than point-to-point networks. They are just different. Bandwidth requirements play a large part in network selection, as well as the industry standards bodies and government regulations. The auto industry largely uses CANBUS. The Marine industry largely uses NEMA2000. The IT industry largely uses Ethernet.


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[iggy]

Every modern automobile is built on a bus network.


Sent from my iPad using Tapatalk

Not sure about cars, but I could see it. I was talking about computer networks in general. They general use shielded cable which is great for boats and cars or anywhere RF interference could take place. But now we have Cat 5, 6 and 7 which each one is less prone to that too. Cat 8 will be out soon.

Which goes back to the point. Bus networks where often found in homes and business, 10base2 years ago. Not any more, unless for some spacial or unusual reasons.

I’ve dealt with all of that in the past (and one you haven’t mentioned: IBM type-1 cabling with Token Ring as the network protocol.

You have to separate the network cabling from the protocol. Ethernet originally ran over a bus (10BASE5) and transitioned to star (point to point) over CATx cabling.

Bus networks aren’t better or worse than point-to-point networks. They are just different. Bandwidth requirements play a large part in network selection, as well as the industry standards bodies and government regulations. The auto industry largely uses CANBUS. The Marine industry largely uses NEMA2000. The IT industry largely uses Ethernet.


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Oh my God! Token Ring, I forgot all about that. When I started in networking, token ring was no longer or hardly in use.

But NMEA 2000 is a Canbus network. Along with SeaTalk and more....... This is why you can buy a gateway to go from J1939 to NMEA2000. They both use a canbus network, the gateway just does the translation. OR at least thats what I have read and been told. So now your GPS can display engine data.

For the sake of others, here is a good link to go into Marine Networks https://www.thefishingwire.com/features/227600

 

[ohioan55]

I would think shielded twisted pair would work well for this application, as long as the cables were made correctly and the end units were grounded correctly to a single point.

 

[ohioan55]

Just wanted to let everyone know that I did finish installation of the oil pressure and temp gauges and they work great. Check out the pictures in my album and feel free to ask about details.

 

[Cutwater28GG]

as long as you can get the engine data into some sort of Canbus format there are ways to display it cheaply or more expensively.

ideally if you can get it into signal K you can easily display the data on non proprietary displays. if its NMEA2000 there are a ton of options available.

the benefit of putting the data into NMEA2000 format is you can then view it on the garmin plotter or pipe it directly over wifi into an ipad running navionics using the yacht devices NMEA/wifi gateway.

 

[hwhayes]

ohioan55,

Your gauge install looks great!
Would you mind sharing more information on this with us?
I want to do this to our 2015 R21EC as well.

From reading the threads on this topic it seems some have used the Volvo NMEA 2K Gateway device but it looks like you took a more direct and traditional approach by adding sending units and gauges independently of any network connection. I would appreciate more information on your approach. What sending units and gauges did you use? How did you choose the temperature and oil pressure range of the gauges? Do they require power? Any issues on routing the wiring?

Thanks

 

[ohioan55]

I posted a final install of the temp sensor in my album. I have kept the original factory sensors and added a full time set of gauges that I can see at a glance. I like being able to see the temp and pressure and now can readily detect a deviance from the norm.

 

[Captain Nice]

ohioan55, curious what your temperature shows when fully warmed and operating. My VP gauge, connected thru the tach, indicates ~196. Thanks, CN

 

[Newf]

After many back and forth emails with "ohioan55" I recently completed oil pressure and temperature gauges and senders on my 2014 VP D1-30F. Many thanks for his patience with my many questions.

Everything seems to be working fine but the temperature seems to be high at 220-225F. I've read online that the thermostat does not fully open until 221F and that 220-225 would be normal operating temperatures at cruise speeds. In the electrical manual it notes that the alarm activates at 230F if it sees that temperature for longer than 15 seconds. If this info is correct it seems like such a small temperature range between operating temp at cruise and alarm temp.

Does any other owners have a temperature gauge on their D1-30 and if so what are they getting for a crusiing temp? Has any owners monitored the temperature at the alarm sensor location with a temp gun?

NOTE: For anyone attempting a similar install of oil and temp senders, I did have a problem with getting the allen head set screw out for the oil sender location. I actually stripped the allen hole. With a little heat and penetrant I did manage to get it with an easy out. Make sure all paint is cleaned out of the hole before attempting to remove it. This is a steel allen head plug in an aluminum casting so some care is needed not to strip the threads in the casting. Other than that, there were no issues with the install.

 

[ohioan55]

My typical temperature is about 215 degrees. Oil pressure runs about 40 psi when above idle. At idle, it drops to about 20. The thermostat on the Volvo Penta is supposed to open at 220 and the alarm is set to trigger at 230, so running at 215 is what I'd expect. I intend to swap out my gauge for out that goes to 240 as I didn't expect the engine to run this warm when I bought the one that only goes to 220. I've since learned otherwise..