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brian

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brian
Oct 15, 2022
In myPower24 - Devices
Your Logger gets its system time from your server and not locally. The effect of this is that users have no control over the time and time zone you set. This has significant effect in that where I am using your Logger to control its relays via expressions they are not operational when you mess around the time. It seems to be in AM and not PM. For instance at the time of typing this to you the time is 16:44hrs (04:44PM) but your server has 04:44AM. I know this because my expressions are not working but when I change them to AM they are working. When you also start messing around with the Logger on your servers you disturb our connections like mine which has closed-loop connection to Victron CerboGX. Please be serious about these things. You can not get the server time wrong, ever!
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brian
Feb 17, 2022
In myPower24 - Devices
I 've the 7.4kWh SolarMD lithium battery with Logger V2 mated to a 5KVA Victron Multiplus II inverter and a Victron Blue Solar 150/100 charge controller. All the components are coordinated by the Victron CerboGX. LoggerV2 controls charging via the CerboGX CAN port and reports battery state. I've 10x430W east-facing half-cut mono PV modules connected to the Blue Solar. Typically these charge the battery by mid-morning on a good solar day. My day time load is on average 500W so energy is bound to be lost. I intend to increase my storage size to 14kWh but for now I have to find other loads to add during peak. This is where the versatility of the LoggerV2 comes in! I've developed a Load-Shift Circuit which is controlled primarily by the two relays on the Logger. The shifted load comprises 2x 2kW geysers and ACs. Given the limitation of my Victron at max 4kW I do not run the geysers at the same time (maid might be ironing-lol) to avoid overload warnings. It was important for me to shift the load based on several variables or states other than time. For instance, the battery SOC plays an important role in determining whether the loads are shifted to the inverter or not. The Relays are triggered by time periods and battery SOC. If the state of charge is >98% and the time is within a prescribed range a relay triggers and this in turn closes or opens a contractor. the relays are triggered differently as they operate two geysers and ACs. I am therefore able to store excess solar as hot water and if the geysers are heated (thermostat switchs off) I can also exploit excess solar as cool air. If I have deficit energy from PV, the battery is not allowed to compliment beyond 95% SOC. This is my prefered threshold. Any remaining PV will charge the battery back to 100% on a good solar day. In the image below, a geyser was running and a 18000BTU AC as well as the house load. The Logger is very versatile and is working brilliantly for me😍
Versatility of Logger V2 content media
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brian
Feb 16, 2022
In Questions & Answers
I am wondering if SolarMD has thought of grabbing data from Victron devices to show this in MyPower24 interface? Currently, only RS232 data say with connection to an Axpert can you view such data. Since migrating to Victron and using VRM I can see what I want to see but it would be nice to make MyPower24 more intuitive with data grab from Victron. Currently in my display I only see the battery info despite the Logger interfacing with the Victron hub device.
Logger v2 interface with Victron Devices content media
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