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DoA PF5?

Started by BlackwaterPark, November 04, 2025, 07:16:47 AM

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ClassicCrazy

The Midnite battery canbus jack uses pin 4 Can high and pin 5 can low
system 1
Classic 150 , 5s3p  Kyocera 135watt , 12s Soneil 2v 540amp lead crystal 24v pack , Outback 3524 inverter
 5s 135w Kyocero , 3s3p 270w Kyocera   Classic 150 ,8s2p  Kyocera 225w to Hawkes Bay Jakiper 48v 20kwh  ,Gobel 16 kwh  lifepo4 Outback VFX 3648  8s2p 380w Rec pv EG4 6000XP

BlackwaterPark

Quote from: ClassicCrazy on November 11, 2025, 05:43:04 PMwhat are you trying to connect again ?
This document says to use regular cat5 cables . The only exception is if you only use two wires for the battery . It is documented here - but maybe that is what you already talked about  ?
file attached



I'm trying to connect Rosie to a bank of powerflo5s. I did get the proper pinout from midnite power for those batteries, at least for the battery end, and they told me to ask someone at midnite solar for the proper pinout on the inverter end, which i'm waiting to hear back on. I'll likely not have to worry about the grounding part of it, as i've decided to keep this system with a floating neutral, as I've been running for 13 years with my other system here. The thing that gets me in the doc you linked is that they explicitly term you to use the cable that comes with the battery, and when you talk to the guys who make the battery, they are telling me to most definitely NOT use that cable. It's like these guys don't talk to each other at all.

ClassicCrazy

Quote from: BlackwaterPark on November 11, 2025, 09:14:07 PM
Quote from: ClassicCrazy on November 11, 2025, 05:43:04 PMwhat are you trying to connect again ?
This document says to use regular cat5 cables . The only exception is if you only use two wires for the battery . It is documented here - but maybe that is what you already talked about  ?
file attached



I'm trying to connect Rosie to a bank of powerflo5s. I did get the proper pinout from midnite power for those batteries, at least for the battery end, and they told me to ask someone at midnite solar for the proper pinout on the inverter end, which i'm waiting to hear back on. I'll likely not have to worry about the grounding part of it, as i've decided to keep this system with a floating neutral, as I've been running for 13 years with my other system here. The thing that gets me in the doc you linked is that they explicitly term you to use the cable that comes with the battery, and when you talk to the guys who make the battery, they are telling me to most definitely NOT use that cable. It's like these guys don't talk to each other at all.
The Rosie end should be the same - pins 4 and pins 5 . I don't have a Rosie but doesn't that have a MNGP2 or does it have it's own canbus jack ? I was looking in the manuals for pinout for the MNGP2 but didn't find it. But I do have the Midnite canbus document and it has all the pins labeled.
Here is what it says

"Basic CANBUS Information
Physical Pinout
The MNCANBUS interface on MidNite devices is accessible via an RJ45 jack. There are two of these
jacks, but they are tied together so the nets are the same regardless of which one is used. The important
pins are CAN HI (Pin 4), CAN LO (Pin 5), and GND (Pin 8). All other pins are used for other
communications on MidNite devices and should be left floating. Connecting these other nets to
anything could produce system communication errors. "

I think I have seen past post where Ryan said just to try using pins 4 and 5 and skip the ground. I think that is what was also showed for using it with Solar Assistant.
Larry
system 1
Classic 150 , 5s3p  Kyocera 135watt , 12s Soneil 2v 540amp lead crystal 24v pack , Outback 3524 inverter
 5s 135w Kyocero , 3s3p 270w Kyocera   Classic 150 ,8s2p  Kyocera 225w to Hawkes Bay Jakiper 48v 20kwh  ,Gobel 16 kwh  lifepo4 Outback VFX 3648  8s2p 380w Rec pv EG4 6000XP

BlackwaterPark

Quote from: ClassicCrazy on November 12, 2025, 11:20:21 AM
Quote from: BlackwaterPark on November 11, 2025, 09:14:07 PM
Quote from: ClassicCrazy on November 11, 2025, 05:43:04 PMwhat are you trying to connect again ?
This document says to use regular cat5 cables . The only exception is if you only use two wires for the battery . It is documented here - but maybe that is what you already talked about  ?
file attached



I'm trying to connect Rosie to a bank of powerflo5s. I did get the proper pinout from midnite power for those batteries, at least for the battery end, and they told me to ask someone at midnite solar for the proper pinout on the inverter end, which i'm waiting to hear back on. I'll likely not have to worry about the grounding part of it, as i've decided to keep this system with a floating neutral, as I've been running for 13 years with my other system here. The thing that gets me in the doc you linked is that they explicitly term you to use the cable that comes with the battery, and when you talk to the guys who make the battery, they are telling me to most definitely NOT use that cable. It's like these guys don't talk to each other at all.
The Rosie end should be the same - pins 4 and pins 5 . I don't have a Rosie but doesn't that have a MNGP2 or does it have it's own canbus jack ? I was looking in the manuals for pinout for the MNGP2 but didn't find it. But I do have the Midnite canbus document and it has all the pins labeled.
Here is what it says

"Basic CANBUS Information
Physical Pinout
The MNCANBUS interface on MidNite devices is accessible via an RJ45 jack. There are two of these
jacks, but they are tied together so the nets are the same regardless of which one is used. The important
pins are CAN HI (Pin 4), CAN LO (Pin 5), and GND (Pin 8). All other pins are used for other
communications on MidNite devices and should be left floating. Connecting these other nets to
anything could produce system communication errors. "

I think I have seen past post where Ryan said just to try using pins 4 and 5 and skip the ground. I think that is what was also showed for using it with Solar Assistant.
Larry

Yes, I got an email from Ryan saying exactly that, to just open up the supplied cable and cut and isolate the orange, brown, and green pair, so i'm going to try that tonight. It sounds like that's also what will work with the solar assistant then? I've got three more cables i can do that to, and was planning on getting the SAv anyway.

mahendra

Quote from: ClassicCrazy on November 11, 2025, 05:43:04 PMwhat are you trying to connect again ?
This document says to use regular cat5 cables . The only exception is if you only use two wires for the battery . It is documented here - but maybe that is what you already talked about  ?
file attached



Yes, Ryan did warn about this. I made my cable; two wires only, pins 5 and 6 if I recall correctly.
Two wires as per the pinout in the document above, but note that if you are using Solar Assistant, there are some errors in the documentation. Check with Midnite to be sure.
1.5kw on Midnite classic 150(whizbang jr.) networked 0.660kw on classic lite 200 wbjr ,180ah CALB Lifepo4 48v battery bank,jkbms 150amps bms(top balanced) Outback vfx3648.
Soon to be added Sol Ark 8k with 5Dyness Bx51000 ,7.8kw pv