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#31
Hawke's Bay / Re: Float time
Last post by ClassicCrazy - March 28, 2026, 11:36:08 AMA new day and my Hawkes Bay did not start the day out in Bulk and instead is in Float again.The Bulk Stage yesterday was when I forced it into Bulk .
here is video of settings https://youtu.be/h3qeo5IqNJ4
this is video of forcing HB to Bulk - ignore the SOC since that isn't accurate
https://youtu.be/cF21yvK4P7U
Larry
here is video of settings https://youtu.be/h3qeo5IqNJ4
this is video of forcing HB to Bulk - ignore the SOC since that isn't accurate
https://youtu.be/cF21yvK4P7U
Larry
#32
Online Training sessions / Re: NABCEP CREDIT Design and A...
Last post by Sunshine - March 27, 2026, 12:26:35 PMIf you missed the webinar you can rewatch the recorded version here
https://attendee.gotowebinar.com/recording/7582209549683993346
https://attendee.gotowebinar.com/recording/7582209549683993346
#33
Hawke's Bay / Float time
Last post by ClassicCrazy - March 27, 2026, 11:17:59 AMI have Hawkes Bay and Little Rosie .
Before I linked them together I would see two different battery charge setpoint screens on the MNGP2. One of them was under Setup / Battery . The other was in Inverter / Little Rosie menu.
When I linked them together - meaning I pressed the MNGP buttons to link them, the battery setup screen for Little Rosie went away and I just have the Setup / Battery screen.
My understanding was that before linking -the Hawkes Bay charge setpoints were from Setup/ Battery settings and the Little Rosie charge setpoints were from Inverter / Little Rosie charge setpoints.
Now I have the Little Rosie and the Hawkes Bay linked together and I only have one Setup / Battery menu to change the battery charge setpoints and those settings are now I believe common to both the Hawkes Bay and Little Rosie.
But since the last firmware update I did , my Hawkes Bay is not coming out of Float in the morning. There is a Float Time setting in the Battery menu and it defaulted to 24 hours. I just ignored that because I don't ever charge batteries using the Little Rose on AC input. I only charge using PV from Hawkes Bay.
This morning my Hawkes Bay was in float - it never went to Bulk at all after the night.
The other day when the Hawkes Bay did not start bulk I suspected maybe that Float Time was holding it back. I changed the Float Time from 24 hours to 7 hours. On many days my Hawkes Bay might be in Float that long now that we have longer daylight.
This morning my Hawkes Bay was in Float . Below is a graph of the status . Yesterday started out with some sun, then clouded up. The Hawkes Bay started in Float mppt , then went to float, then back to Float mppt, then back to Float then eventually as night came it went to Resting and this morning started out in Float Mppt , then Float .
The battery voltage was low enough that this morning the Hawkes Bay should have started out in Bulk like any controller usually does first thing in the morning. I had to force it to Bulk in the MNGP2 menu.
If I add up all the Float times in the history graph from yesterday they don't add up to 7 hours. Total of Float mppt times were longer than Float but don't seem to be counted in to the Float Total.
Will setting Float timer to Zero change the Hawkes Bay to ignore Float Time and go back to running on a regular cycle such as Bulk to start day, Absorb according to setpoints and Absorb Time, then go to Float( and or Float Mppt ) the rest of the day and start a brand new Bulk cycle the next morning ?
I know this probably sounds hard to follow . I wouldn't have known what was happening if I didn't have the graph of charge stage history. The purple at the very end of the graph is where I just forced HB to Bulk.
Larry
Before I linked them together I would see two different battery charge setpoint screens on the MNGP2. One of them was under Setup / Battery . The other was in Inverter / Little Rosie menu.
When I linked them together - meaning I pressed the MNGP buttons to link them, the battery setup screen for Little Rosie went away and I just have the Setup / Battery screen.
My understanding was that before linking -the Hawkes Bay charge setpoints were from Setup/ Battery settings and the Little Rosie charge setpoints were from Inverter / Little Rosie charge setpoints.
Now I have the Little Rosie and the Hawkes Bay linked together and I only have one Setup / Battery menu to change the battery charge setpoints and those settings are now I believe common to both the Hawkes Bay and Little Rosie.
But since the last firmware update I did , my Hawkes Bay is not coming out of Float in the morning. There is a Float Time setting in the Battery menu and it defaulted to 24 hours. I just ignored that because I don't ever charge batteries using the Little Rose on AC input. I only charge using PV from Hawkes Bay.
This morning my Hawkes Bay was in float - it never went to Bulk at all after the night.
The other day when the Hawkes Bay did not start bulk I suspected maybe that Float Time was holding it back. I changed the Float Time from 24 hours to 7 hours. On many days my Hawkes Bay might be in Float that long now that we have longer daylight.
This morning my Hawkes Bay was in Float . Below is a graph of the status . Yesterday started out with some sun, then clouded up. The Hawkes Bay started in Float mppt , then went to float, then back to Float mppt, then back to Float then eventually as night came it went to Resting and this morning started out in Float Mppt , then Float .
The battery voltage was low enough that this morning the Hawkes Bay should have started out in Bulk like any controller usually does first thing in the morning. I had to force it to Bulk in the MNGP2 menu.
If I add up all the Float times in the history graph from yesterday they don't add up to 7 hours. Total of Float mppt times were longer than Float but don't seem to be counted in to the Float Total.
Will setting Float timer to Zero change the Hawkes Bay to ignore Float Time and go back to running on a regular cycle such as Bulk to start day, Absorb according to setpoints and Absorb Time, then go to Float( and or Float Mppt ) the rest of the day and start a brand new Bulk cycle the next morning ?
I know this probably sounds hard to follow . I wouldn't have known what was happening if I didn't have the graph of charge stage history. The purple at the very end of the graph is where I just forced HB to Bulk.
Larry
#34
The Rosie / Re: Parallel Rosies not sharin...
Last post by Brucey - March 26, 2026, 01:37:22 PMQuote from: Brucey on March 17, 2026, 10:23:08 AMI emailed Midnite support on this and got a response within 3 minutesQuote from: FNG on March 16, 2026, 09:16:07 AMA few things here in no order:To clarify on the parallel threshold setting, this allows you to just have the Master Rosie on and additional slave parallel unit(s) will power up if the threshold is exceeded? Is there a timer before the slaves shutdown after load drops below threshold?
1- I would update firmware on the Rosies, A lot of work was done for generators late in 25/ early in 26
2- Looks like the second Rosie is off maybe, It should wake up if parallel threshold is set but to be sure try turning parallel threshold to off
3- Parallel threshold percentage is on either leg. For example if set to 20% and L1 loads to 700 watts that's 20%
Very cool.
Once load on a leg drops below the threshold for about 60 seconds the additional slave units will power off
#35
The "Classic" charge controller / Re: 250 Classic is in resting ...
Last post by Wizbandit - March 24, 2026, 08:51:07 PMYour transistors are shorted out, to get it out of RESTING will cost you about $200...
#36
The "Classic" charge controller / Re: ClassicBridge - Classic to...
Last post by RJD18 - March 24, 2026, 12:35:33 PMPosting this update for anybody in the future that finds this thread. FINDINGS
Short version: You can't make a third-party MPPT look native to the Schneider Combox—but you can fake a tiny slice of it.
Due to the closed and proprietary nature of Schneider's control and monitoring ecosystem, I've had to adjust my expectations of what the ClassicBridge can achieve in this application.
While it's true that an external (third-party) monitoring system can access published Modbus registers on the Schneider Combox, this is limited to upstream monitoring use cases. In this role, the Combox effectively acts as a Xanbus data aggregator and presents itself as a Modbus slave to the upstream monitor. However, using it this way largely bypasses the Combox's internal performance monitoring capabilities.
Full device identity and integration within the "Combox" ecosystem are strictly limited to Schneider devices. This restriction is enforced through the Xanbus protocol, both in its topology and its device identification payloads. In practical terms, the Combox operates with a mindset of: "If you're not on Xanbus, you don't exist."
There are a few limited exceptions available via the RS485 interface. However, even here Schneider tightly constrains integration through the Modbus "device type" selection in the Combox UI. The user is restricted to a short list of predefined Schneider devices, and the Combox will only poll specific, known registers for whichever device type is selected.
This is essentially a one-way negotiation: the Combox dictates the device identity, the expected register map, and the data it wants—leaving no room for dynamic or custom device integration.
None of the available device types represent an MPPT charge controller. The only option with any PV-related data is the Conext RL, which exposes just three relevant registers.
As a result, I've adapted the ClassicBridge approach to map those three PV-related registers from the Conext RL profile. This represents a scaled-back but still functional integration path. I'll report back once I have results.
Possible Path Forward : The ClassicBridge (device I built pictured prev) is purpose built so that a physical CANBUS interface could be added which is technically compliant with Xanbus at the physical layer. The decomposition of the Xanbus protocol and payload becomes the material variable. For this I would need to capture and analize the first 30seconds of traffic with an actual MPPT60 in a Schneider environment. Using this analysis I believe it possible to replicate the handshake and have a ClassicBridge take Classic Charge controller inputs and emulate a Schneider MPPT to the Schneider Combox for the purpose of monitoring it using Schneiders UI. Unfortunately I have no immediate access to acquire this payload for analysis . If anybody can help with this please reach out .
Short version: You can't make a third-party MPPT look native to the Schneider Combox—but you can fake a tiny slice of it.
Due to the closed and proprietary nature of Schneider's control and monitoring ecosystem, I've had to adjust my expectations of what the ClassicBridge can achieve in this application.
While it's true that an external (third-party) monitoring system can access published Modbus registers on the Schneider Combox, this is limited to upstream monitoring use cases. In this role, the Combox effectively acts as a Xanbus data aggregator and presents itself as a Modbus slave to the upstream monitor. However, using it this way largely bypasses the Combox's internal performance monitoring capabilities.
Full device identity and integration within the "Combox" ecosystem are strictly limited to Schneider devices. This restriction is enforced through the Xanbus protocol, both in its topology and its device identification payloads. In practical terms, the Combox operates with a mindset of: "If you're not on Xanbus, you don't exist."
There are a few limited exceptions available via the RS485 interface. However, even here Schneider tightly constrains integration through the Modbus "device type" selection in the Combox UI. The user is restricted to a short list of predefined Schneider devices, and the Combox will only poll specific, known registers for whichever device type is selected.
This is essentially a one-way negotiation: the Combox dictates the device identity, the expected register map, and the data it wants—leaving no room for dynamic or custom device integration.
None of the available device types represent an MPPT charge controller. The only option with any PV-related data is the Conext RL, which exposes just three relevant registers.
As a result, I've adapted the ClassicBridge approach to map those three PV-related registers from the Conext RL profile. This represents a scaled-back but still functional integration path. I'll report back once I have results.
Possible Path Forward : The ClassicBridge (device I built pictured prev) is purpose built so that a physical CANBUS interface could be added which is technically compliant with Xanbus at the physical layer. The decomposition of the Xanbus protocol and payload becomes the material variable. For this I would need to capture and analize the first 30seconds of traffic with an actual MPPT60 in a Schneider environment. Using this analysis I believe it possible to replicate the handshake and have a ClassicBridge take Classic Charge controller inputs and emulate a Schneider MPPT to the Schneider Combox for the purpose of monitoring it using Schneiders UI. Unfortunately I have no immediate access to acquire this payload for analysis . If anybody can help with this please reach out .
#37
The "Classic" charge controller / Re: 250 Classic is in resting ...
Last post by ClassicCrazy - March 23, 2026, 07:59:29 PMI am assuming your solar is on a different controller. If the solar is holding the battery voltage higher than whatever setpoint you have for your Classic wind controller, it will show resting.
What are the absorb and float setpoints for your wind , and what are the setpoints for your solar ?
Larry
What are the absorb and float setpoints for your wind , and what are the setpoints for your solar ?
Larry
#38
The "Classic" charge controller / 250 Classic is in resting mode...
Last post by dbower9077 - March 23, 2026, 05:08:50 PMNeed to get it out of "Resting Mode"
Current system is used to add a wind component to my solar power system. 1600 watt Missouri Wind and Solar 48 Volt generator with 3 blades. The classis is hooked onto a DC Buss Bar that feeds power to a Victron Shunt that monitors the batteries. I have 3 Victron 1000 Lynx Distributors running 2 Quatro 48/10000/120 Inverters. Currently 9400 watts of solar, but I plan on adding 3000 more soon.
We had high winds and the lights started flickering and I was getting major deviation on the power coming off the wind turbine (between 250 and 700 watts due to gusts). I shut down the incoming power from the turbine then the power from the batteries to see if I could reboot my 250 Classic. It came back on in a "resting mode". The left two wires( both black) from the battery show power coming into the Classic. The Left 2 main wires (one black, one red) that go to the wind turbine show no power in or out. Need some help please. see photos
Thanks.
Current system is used to add a wind component to my solar power system. 1600 watt Missouri Wind and Solar 48 Volt generator with 3 blades. The classis is hooked onto a DC Buss Bar that feeds power to a Victron Shunt that monitors the batteries. I have 3 Victron 1000 Lynx Distributors running 2 Quatro 48/10000/120 Inverters. Currently 9400 watts of solar, but I plan on adding 3000 more soon.
We had high winds and the lights started flickering and I was getting major deviation on the power coming off the wind turbine (between 250 and 700 watts due to gusts). I shut down the incoming power from the turbine then the power from the batteries to see if I could reboot my 250 Classic. It came back on in a "resting mode". The left two wires( both black) from the battery show power coming into the Classic. The Left 2 main wires (one black, one red) that go to the wind turbine show no power in or out. Need some help please. see photos
Thanks.
#39
The "Classic" charge controller / Re: Hydro configuration option...
Last post by FNG - March 23, 2026, 09:25:00 AMWith hydro and a parked voltage its a non issue, if it was wind or hydro and using the MPPT tracking it can become an issue as no 2 turbines track identically and they would pull the MPPT around back and forth and likely be less efficient
#40
The "Classic" charge controller / Re: Hydro configuration option...
Last post by J4501 - March 21, 2026, 08:33:03 PMUpdate: opened a ticket with support and got a quick reply. Thought I should post it here in case someone asks in the future. Warning, this being a corner case with some dependencies I suggest you consult support before deploying!
I will work with the hydro manufacturer regarding the diode question.
Support reply:
Subject: Hydro questions Date: Mar 20, 2026 From: SUPPORT
xxxxx,
I see no issue if you are parking at a fixed voltage. Both hydros should make power no issue. Not sure if you need to isolate them from each other with diodes but the classic 200 will do fine
I will work with the hydro manufacturer regarding the diode question.
Support reply:
Subject: Hydro questions Date: Mar 20, 2026 From: SUPPORT
xxxxx,
I see no issue if you are parking at a fixed voltage. Both hydros should make power no issue. Not sure if you need to isolate them from each other with diodes but the classic 200 will do fine