Indirectly BMS-Inverter + RS232/RS485 to TCPIP/Ethernet conversion with USRIOT server

Hello everyone,

I have NO ASSOCIATION with USRIOT whatsoever, I am just an end user.

In several of my posts I have provided links to a product family from USRIOT which can take RS232/RS485 and convert it to Ethernet so that the data can be accessed by applications & software such as Node-Red using Modbus or other means. There are many devices that do such conversions and have a variety of functions / capabilities but the USR devices have a "server" which allows extensive configuration for the various inputs. A point of interest possibly, I furtled with this a bit and the Engineering & Support folks at Samlex are the ones who recommended these USRIOT devices to me.

The main website is : https://www.usriot.com/
Downloadable Catalogue in PDF format: https://www.usriot.com/download/Catalog/USR_Product_Catalog.pdf

The first product I purchased has 1 RS323 port & 1 RS485 port: https://www.usriot.com/products/modbus-serial-to-ethernet-converters.html
The newest one I just ordered because I am adding 2 more LFP Packs with Chargery BMS' (RS232) is a 4 port unit (3 for the LFP BMS' and 1 for the Samlex EVO Inverter {RS485}. https://www.usriot.com/products/4-ports-serial-to-ethernet-converter.html

NOTE That there are MANY different types & versions including CANbus interface, WIFI, Bluetooth and more. It all depends on what you are trying to do and how you want things to work.

CANbus to Ethernet converter/Server: https://www.usriot.com/products/can-to-ethernet-converter.html

Before anyone asks: I am unable to discuss or provide the Modbus protocol stack for info Samlex EVO inverters as I am under a Non-Disclosure agreement with them.

Lastly, to access the USR converter, I am using a RaspberryPi running with Node-Red, InfluxDB & Grafana. This also connects to my Midnite Classic-200 via Modbus bringing all the data sources together. This software I am developing is a "by the way, when I feel up to it" project, meaning that it'll be done when I get it done. I "may" make an image available without the Samlex Modbus information module once I have the 3 BMS' & the Midnite Classic all humming the same tune.

In closing, if you are looking at the site and the vast plethora of "Goodies", take your time and carefully read the detailed descriptions and even download the manuals to see if it suits your needs & wants. These devices are "Converters" and as such require an external application to take the data and process it into something useable. They do not come with such an application, it either has to be written or purchased from ???

I hope this helps those on the quest of Renewable Energy !
Have a Great Day Everyone.
Steve

I just received my NR-540 4 port unit and thought I'd post a couple of pictures for anyone interested.
I ordered & paid for it on the 12th of February, shipped on the 14th, arrived today the 19th.
* Note: I purchased it directly from USRIOT on their site.



Which is to support my system expansion that will include 3 Chargery 8T BMS' using RS232 and the Samlex Inverter using RS485, here's the basic logical diagram of how it fits into my setup. This diagram is the single LFP pack.

Did you give any thought to connecting the Chargery directly to the Pi via RS232? You can use a USB - Serial converter which is cheap and supported by the kernel.

I'm just hoping Chargery will develop a Bluetooth module that attaches to the BMS for the battery I'm building for my RV. I have some understanding of communications protocols .... but the older I get I am just looking for simple.

lmwilco1 said:

Did you give any thought to connecting the Chargery directly to the Pi via RS232? You can use a USB - Serial converter which is cheap and supported by the kernel.

Click to expand...

Yes I did but I with the Samlex 485 I preffered to do it this way so I could experiment in different ways. No reason someone couldn't use a Pi directly and there are hats for extra ports if needed.

@Bob, apparently it is being worked on from what I know but how long away it is I don't know. I would imagine it would have to include a hardware add/on or change. A WIFI option would likely not be a bad idea either.

Chargery should make a little relay board for just using one contactor as in option to take both relays outputs to control one relay.

Picasso said:

Chargery should make a little relay board for just using one contactor as in option to take both relays outputs to control one relay.

Click to expand...

That would make into a Common Port configuration which is already addressed by using either / or config. having the current configuration options offers the most versatility all around. Anyways, that is off-topic for this thread.

I sent an email to Chargery asking them adding Bluetooth.
The answer is that they are working on it .... There won't be an upgrade to a Chargery you might have right now to add the Bluetooth. I guess they are building it in instead of using a module to connect to the serial port. They don't have an estimated time frame when the option will be available.

Steve,
Have you had any luck establishing serial communications with the Chargery BMS?

https://diysolarforum.com/threads/chargery-bms-communications.5905/ this is what I have so far its not pretty but works with Linux

Steve_S said:

I just received my NR-540 4 port unit and thought I'd post a couple of pictures for anyone interested.
I ordered & paid for it on the 12th of February, shipped on the 14th, arrived today the 19th.
* Note: I purchased it directly from USRIOT on their site.

View attachment 7682View attachment 7683

Which is to support my system expansion that will include 3 Chargery 8T BMS' using RS232 and the Samlex Inverter using RS485, here's the basic logical diagram of how it fits into my setup. This diagram is the single LFP pack.

Click to expand...

Can't get the diagram. Is it available?
Thanks

jtruono123 said:

Can't get the diagram. Is it available?
Thanks

Click to expand...

Necro post. I gave up on that USRIOT thing and binned it. I also changed BMS' to standard JK and now revamping my whole bank with JK-Inverter BMS' and more. Lot happens in 4 years ! LOL

The link for my system diagrams etc is in my "About My System" link in my signature. NOTE it is presently quite out of date as changes have been made & are still being made till it's finalized & done in the next month & half.