One Classic 250 MNGP's mirrors the other Classic 250

[ClassicCrazy]

If firmware isn't the same as the one I posted above try that one to get rid of siren noise - or maybe shutting off audio in mngp will work.

Larry

[Trukinbear]

for your info my firmware is 2197 MNGP  2245 Classic

Larry

Where did you get that?

I've got 2193 - which is the latest and only one listed on the Website (2193 - Feb 06, 2018)

http://www.midnitesolar.com/pages/classic/firmware.php?firmwareProduct_ID=1

[FNG]

Are you addressing these using the local app?

[Trukinbear]

Are you addressing these using the local app?

Yes, the MODBUS address on 11 was originally set via the local app for the Classic itself - and with all the networking cables disconnected with the MNGP as in the link above to set MNGP address to 11.

Otherwise I've tried 'hey you, and hellooo are you working' with only mixed results. :-)

[FNG]

Ok the issue with addressing the classics using the local app is it does not address the MNGP. You dont want to use the local app for addressing on classics only classic lites.

What I would do is unplug the follow me - SMA cables between the classics and follow the directions on addressing from th MNGP and set them for 10 and 11

[Trukinbear]

I'm sure I must have once set the MODBUS address from the MNGP for the Classic when I set this up originally, but right now I'm having trouble locating that function.

[ClassicCrazy]

I'm sure I must have once set the MODBUS address from the MNGP for the Classic when I set this up originally, but right now I'm having trouble locating that function.

Misc menu / Comm

Larry

[FNG]

Actually to address the classic is done from the home screen. On page 21 of this manual

http://www.midnitesolar.com/pdfs/Classic_ClassicSL_Manual_10-001-1_REV_L.pdf

To address a Classic simply use the MNGP that is plugged into that Classicor plug the MNGP into that Classic and hold the LEFT ARROW keydown and tap the UP or DOWN ARROW key. The normal default address is 10 so going up will take you to 11 and down to 9. When you get to the unused address you want for that Classic, hold the LEFT and RIGHT ARROW keys for a second until “Data Sent and Saved” shows up. Now this Classic has been re-addressed to the new address.

[Trukinbear]

Thanks, yes that is the way I did it with the arrow keys. The network agrees it is 11, the Sunny Island agrees it is 11, and about two thirds of the time this unit's MNGP shows the data I would expect, and one third of the time the screen just says 'Unused Address 11.' It did set off an obnoxious alarm every time it did that but I've got the volume down to zero now so I can't hear it.

[FNG]

Ok so what you are explaining is a loss of comms between the display and the classic. If this is more than a few seconds say 15-30 seconds and it selfs rectifies this could be several issues:

1- Bad cable between the classic and the MNGP (Try a new cable)
2- Corrosion on the cable or jacks, I have seen this in humid areas if the silicone gell isn't used on these jacks (To fix please clean with contact cleaner and apply silicone dielectric grease)
3- Bad cable between the classics for SMA mode or between classic and SMA Commbox, The issue here becomes traffic and prioirities. Sending info to view on the MNGP is a lower level of priority than sending charging data across the network. (Try a new cable)
4- Corrosion on any of those jacks, See #2 above
5- Firmware mismatch. While each classic can be on different firmware versions the MNGP and Classic have to be on the same. If the classic and MNGP are not on the same firmware the Classic can get lost trying to right data to registers that arent present. I have seen this where the covers get confused and the wrong MNGP gets put on the wrong classic
6- An issue with a control board or mngp. (Reach out to our support team for an RMA if all the above is exhausted)