I have a fridge which draws approx 4A when the compressor is running, but other than that there is no other load or input into the system at the moment, but the SOC still gradually returns to 100% over the course of a few hours or so.Īny clues as to why the SOC might be slowly trickling back to 100%? Thanks very much. NMEA 2000 network’s can allow up to 50 different compatible devices to. For example, a device that draws 0.5 amperes (500 mA) from the network would have LEN equal to 10. The amount of current used from the network is expressed as a Load Equivalence Number (LEN) where each LEN is equal to 50mA. Unlike NMEA 0183, having different baud rates is not an issue with NMEA 2000 networks. Manufacturers of NMEA 2000 equipment are required to disclose the amount of current drawn from the NMEA 2000 network. When I recharge the battery I’ve tried synchronising manually but it doesn’t change anything. They are self-configuring and no setup is required, meaning you can easily add or remove any compatible equipment without needing to restart the network. I end up with the SOC being 100% but the voltage being 13.25, for example. If I run a load such as 6 amps until the SOC on the BMV is around 90% and I then leave it, it slowly trickles up to 100% even though the voltage stays within 0.1 of a volt. For the purposes of testing the accuracy of the SOC I disconnected the solar and haven’t turned the vehicle on. I have a BMV-700 monitoring my amptron 100ah lithium battery which is charged from a redarc bcdc1225d with vehicle input whilst the vehicle is running, and solar input usually. I'm very grateful and find it very freeing to know that I can integrate whatever I want into my system now rather than being stuck with the straighjacket of closed systems offered by competitors John macrae asked at 07:30 PM I'm switching my purchasing decision towards Victron due to the open sourcing of Venus.
Sorry for the variety of questions :) Looking forward to a positive discussion. For the N2K, its unclear, I assume an available Pi hat - is data flow bi-directional? Will Venus OS pick up my BMS N2K messages and use them or will it prefer the Smartshunt values? Will the smartshunt values make it to the N2K bus so I can use them in my BMS (for comparison and backup)? It seems that I need to buy a bunch of Ve.direct to USB adapters and a Ve.Bus adapter. My existing LiFePO4 is already protected by my own design BMS which speaks N2k. I have N2K on my boat and have decided to replace some of my ageing electrical installation (from another dutch company :/ ) with the following: Multiplus II (12/3000), 2 x smartsolar MPPT, Smartshunt. However, my reading of the history (and documentation) of this impressive project has left me a little bewildered since there are so many options, some of which may now be obsolete. The initiating manufacturers contributed their engineering expertise and have been an integral part of developing OneNet®.I've been lurking here for a while and find the idea of running Venus OS (large) on a Pi an attractive option. OneNet® was initiated by a group of manufacturers who asked the NMEA to standardize a method of transmitting and receiving NMEA 2000® messages on Ethernet. IEEE 802.3 cannot provide the same guarantee of message delivery.” OneNet® is not recommended for real-time critical data, because the NMEA 2000® Controller Area Network (CAN) enables prioritization and guarantees that the message transmitted will always get through to certified devices. OneNet® complements the NMEA 2000® Standard and preserves existing and future NMEA 2000® messages (PGNs).
“NMEA OneNet® uses the physical and network layer standard based on the IEEE 802.3 Ethernet Standard. “NMEA OneNet® does not replace NMEA 2000®,” said NMEA Technical Director Steve Spitzer. While this approach may be expedient, there are problems with individual solutions, including a lack of interconnectivity and support of many different implementations. Some manufacturers currently use higher bandwidth Ethernet for video as well as for proprietary messaging on Ethernet to add NMEA 2000® messages. This output from the engine can be displayed on Navico Multi-Function Displays such as the Lowrance HDS, Lowrance LMF-200 and 400 gauges, the Simrad NSS/NSE/NSO the B&G Zeus as well as NMEA 2000 Compatible displays from other manufacturers. The solution is called OneNet®, and it’s scheduled to be operational by late 2014. Many Yamaha outboard engines have the ability to output engine data to a NMEA 2000® network. Over the last few years, marine electronics manufacturers have been working overtime to develop a common infrastructure to transport NMEA 2000® messages over Ethernet.
0 kommentar(er)
