Raspberry Pi Forums

CharlesGodwin

I had previously published a very comprehensive suite of tools for accessing the RS485 network of Magnum energy devices. But this proved to be very complex and difficult to understand. It is discussed in this post. https://www.raspberrypi.org/forums/viewtopic.php?t=79931 I have just released a new p...

CharlesGodwin

Thanks for the tip for the power supply.

Yes, USB power harnesses would be good.One idea I have is to use an industrial style USB hub, rail mounted, that can be self powered to support its USB A ports. I think I can get short A to OTG cables. Short may help with the wire size concern.

CharlesGodwin

Thanks for your suggestions. But... your answer demonstrates my search problem. The MeanWell power supply is only 2.4 ADC, about the same as an official Pi power supply so it could power, at best, 2 Pi. MeanWell doesn't seem to have anything for DIN rail with a higher current rating in 5VDC. I've lo...

CharlesGodwin

I use Raspberry Pis for server type applications. Uses such as small web server, local GIT site and logging and display of IoT sensors and other devices. I have yet to use one as controller for printers or as a desktop. This means all my Pi lead a life of obscurity on a shelf somewhere once they are...

CharlesGodwin

I vote for MQTT

Then you can link disjoint pieces that can run as separate processes or even on separate machines. AND the pieces can be easier to debug. I just finished a IoT project with temperature sensors that uses MQTT and a common JSON structure. all the little bits were easy to build and test.

CharlesGodwin

@dogman1155

I implemented a serial modbus version of my Morningstar controller interface. It has been running for a day with no faults. In the same interval my TCP version has had 8 faults. The only downside is the two must be near each other. That is not a problem for me.

CharlesGodwin

Replies may be out of order. I only discovered the USB/RS485 dongle about 18 months ago. Before that i was using an expensive add on board that became obsolete as the vendor stopped upgrading the Pi software. I have recently added support for a RS485 HAT as the HAT behaves slightly different that th...

CharlesGodwin

It's a pity that Magnum is so secretive about their protocol. There are days when I wonder if they are concerned about trade secrets or just embarrassed about its design or lack of design. It is a very rigid protocol that is hard to expand. In fairness to them it was developed in early days of moder...

CharlesGodwin

I have limited experience with multiple inverter setup. I had one user of my software https://gitlab.com/Magnum_Energy/distribution that had a multi-inverter and multi PT-100 setup but due to circumstances outside the scope of this software he was unable to implement and validate the software. Howev...

CharlesGodwin

CharlesGodwin

It's not as complicated as it sounds. I have a small function that does all the fiddly calculations and it's also code that's forgotten once it works.

CharlesGodwin

I'm going to try to explain getting battery voltage from MorningStar. It's not simple and I fear my language skills will get in the way. Voltages, as I mentioned in a prior post, are based on several values. Referring to page 3 of the document you referenced. A voltage value( adc_vb_f_med) is the va...

CharlesGodwin

The Morningstar code is not on Gitlab - yet. I hadn't considered it as no one asked. But I can share if you send an email to magnum-at-godwin-dot-ca. I'll look for your email. The code is a bit different that what I would have sent you before. The difference is not in reading the ModBus information ...

CharlesGodwin

If it's a cheap and reliable UPS you want, I think cheap OR reliable is your only choice. I think you can find some for under a $US 100 but unless you buy one that includes a communications interface so the Pi can know the power is about to go away as the UPS batteries are failing then the UPS has l...

CharlesGodwin

I have a friend who uses a laser based device to measure distance from the laser to the surface of the water, which he reads in a vertical pipe to reduce wave action. Once calibrated the water level change it is easily tracked. Measuring the depth of a natural body of water is problematic as the bot...

CharlesGodwin

I've used reverse tunnelling for a few years but recently came upon this solution. https://blog.kylemanna.com/linux/ssh-reverse-tunnel-on-linux-with-systemd/ I like it because: It's easy to setup It's easy to manage systemd takes care of the monitoring, restarts, logging, etc. it works ;) When I swi...

CharlesGodwin

Hi I hope my system can help. The software as published will handle all your Magnum Energy (ME) components but, alas, not the Outback Energy ASX-Port. I presume, since you have managed to deal with the ME magweb device, that you have programming skills. I don't think it would be hard to extend the r...

CharlesGodwin

This is addressed to anyone using my software. I haven’t published any changes to my software but I plan a cleanup. More like pruning dead branches. Take a look at this https://gitlab.com/Magnum_Energy/distribution/blob/master/CHANGES_FOR_2.0.md and tell me if there are any problems. I’m trying to m...

CharlesGodwin

raspbian.mirror.colo-serv.net is still not responding

CharlesGodwin

I hope its' something simple.
Before you rebuild and replace I suggest you delete all your magnum*.jar files in the lib directory so there are no old rogue versions getting in the way.

Code: Select all

rm lib/magnum*.jar

If you hit glitches please email me as my responses can be quicker and more specific. Thanks

CharlesGodwin

@scott I notice that building extra plugins can be complicated if you need to checkout the entire source, add your code and then build a private version. That's a lot of work. My method is to have a separate project for just compiling the extra plugin code. I then build a jar file with a different n...

CharlesGodwin

@scott I am confused as all my tests with release 1.0.6 supports the Z. This morning I did the following: Note : There are some changes to prior build instructions. I will list them at the bottom. I am also attaching a log of all these activities. I created a new directory on a Pi I installed ant an...

CharlesGodwin

Strange. I did that earlier and it worked. The old code worked by just dropping the Z.

I'm still not near my PC

CharlesGodwin

I have not tested that way for a while. I use eclipse which is slightly different. I'll look at it later. I'm not near my PC.

CharlesGodwin

You said "rebuild" are you really building from source or downloading the files and running setup_1.0.6 or...?

Search found 79 matches

A new interface for Magnum Energy Networks

Re: DIN Rail mounts for Raspberry Pi

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Re: Using a Pi to Log Data in a Magnum Energy System

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Re: Using a Pi to Log Data in a Magnum Energy System

Re: Using a Pi to Log Data in a Magnum Energy System

Re: Using a Pi to Log Data in a Magnum Energy System

Re: Is there a cheap and reliable UPS for raspberry pi 3b+?

Re: Water Depth Sensing

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Re: Using a Pi to Log Data in a Magnum Energy System

Re: Mirror director directing to broken repository mirror

Re: Using a Pi to Log Data in a Magnum Energy System

Re: Using a Pi to Log Data in a Magnum Energy System

Re: Using a Pi to Log Data in a Magnum Energy System

Re: Using a Pi to Log Data in a Magnum Energy System

Re: Using a Pi to Log Data in a Magnum Energy System

Re: Using a Pi to Log Data in a Magnum Energy System