Wierd spikes in data

[bjoern-le]

I have a SUN 12k. Usually the data read by the adapter looks good an the P_GRID_CT_TOTAL (currently 43W) and P_GRID_LD_TOTAL (currently 407) are very close to the 427 W shown by the smart meter.

But: When there is enough current generated by the PV so that I don't need energy from the grid the consumption goes to values like 65497 as soon as I export to the grid. I think this is related to the data type (likely an unsigned int), but it is strange to see the spikes in the graphs. Is there a way to change this behaviour and show negative numbers?

Steps to reproduce the behavior:

1. Export to grid
2. Look in history for P_GRID_CT_TOTAL -> Values > 60000W instead of negative W

Expected behavior
Negative Watts when energy gets exported.

Versions:

• Adapter version: 0.1.1
• JS-Controller version: 6.0.11
• Node version: v20.17.0
• Operating system: docker container inside raspbian

[raschy]

Please show me the coils from this measuring point

[bjoern-le]

I am very sorry for the delay. The coils and so on should be the ones from the sun12k config file.

The config for coil P_GRID_CT_TOTAL is

{ "register": 619, "rules": 1, "key": "P_GRID_CT_TOTAL", "name": "P GRID CT TOTAL", "unit": "W", "factor": 0, "nullable": false },

[raschy]

Please try changing the rules from ‘1’ to '3'

[bjoern-le]

Quick update: The rules are updated and I am waiting for the fog to disappear so I can generate enough power to export it.

[bjoern-le]

Today there is enough sunlight. Unfortunately, the values still show 65xxx Watt if I send power to the grid for the Value P_GRID_LD_TOTAL with rule set to 3.

[bjoern-le]

Rule 2 is correct (signed 16 bit) opposed to 3 (unsigned 32 bit). Thank you very much for pointing me in the right direction. I will try to identify correct settings for the rules in the next days for all values. If you want I can create a pull request later for the sun12kp3 file in the repo. Please tell me if this helps. Else you can close this ticket.

[raschy]

PR is ok. But if there are only a few coils, a short message here will suffice.