Been reading quite a bit on here regarding Shoto SDA10 48100 5.12kwh batteries.
We've had an installer do Kodak Max 7.2Kw inverters with these Shoto batteries.
Unfortunately I learnt later that these dont communicate at all. Would have gone the sunsynk + hubble/pylontech route had I known this!
So now we are trying to get the system communicating to some extent.
For that reason we purchased the solar assistant system.
Have the shoto manual , its a newer design which slightly different terminals (vertically orientated in a line as shown in the manual), CAN comms and RS485 (no rs232).
Dip switches are also different compared to previous threads which I had seen (for 4 batteries, master has 5&6 up!) . All in the manual which you can see here.
With the dip switches correct, and the cascading batteries connected to master RS485B to the battery 2 RS484A, and alternating so on, with the CAN port DISCONNECTED, then ONLY did we get some 'info' being transferred to the raspberry pi. Unfortunately, it says "invalid data recieved". The interesting part is that its at least transferring data now.
SO guys with Shoto batteries trying to get comms, make sure your dip switches are exactly as stated in your specific batteries manual. They seem to be changing things between revisions of the design. And hence confusing people. Hope this helps some of you with Shoto SDA10 batteries.
Pierre has been very helpful in trying to rectify the situation, but for now it seems that the data is in a new format and hence cannot be read.
Interestingly the RS485 pins listed in the manual are different from other batteries and previous shoto designs, says pin 8 is RS485B.
However, we had used the old cable with Pin 8 as ground, which is providing some data (albeit invalid). According to Pierre this means the manual is wrong. Since if the ground was as per the manual then it would not have worked at all.
THen in 4.2.2. of the manual they contradict themselves by showing pin 8 being the ground. Strange indeed.
Now to the main reason why I'm posting here,
Please see the battery specs below. They no longer specify 15s or 16s so I dont actually know what this battery is. Perhaps they only have one model now. Especially since previous manuals had separated the two. THis manual has only one type.
My battery settings on the inverter (USER option selected due to no comms):
We currently are using emulated BMS to try to maximise benefit from the system, till solar assistant gets the data processing sorted.
1. What should the 30% and 80% SoC be set to based on the above manual?
2. Do these battery settings look optimised? Especially the 'to grid' and 'back to battery' voltages.
Although I suppose solar assistant will handle this now.