No success with StorEdge SE7K-RWS48BNN4 and SDM630MCT-RC + 3pcsESCT-RC100

[djmoonshine]

I'm setting up a new StorEdge inverter and already had a SDM630 so this code would fit perfect!

The setup might be a bit different since I don't have normal CT:s, but rogowski coils.
https://www.aliexpress.com/item/32994844856.html

Therefore i'm not 100% sure what CT value I should set and how it affects. Since the meter is reporting correct values I don't understand what exactly this setting does.

I have tried this config:
`
[server]
device = /dev/serial/by-id/usb-Silicon_Labs_CP2104_USB_to_UART_Bridge_Controller_0106F08D-if00-port0
meters = import_export

[import_export]
type=sdm630
device=/dev/serial/by-id/usb-Silicon_Labs_CP2104_USB_to_UART_Bridge_Controller_010D5A07-if00-port0
baud=9600
src_address=1
dst_address=2
refresh_rate = 5
ct_current = 5
`

Unfortunately I don't really manage to get it to work. My inverter says communication error 3x6e.

Getting data from the meter seems to work. But also getting some strange errors in the log.

2021-04-29 09:26:01 DEBUG: Changing transaction state from 'PROCESSING REPLY' to 'TRANSACTION_COMPLETE'
2021-04-29 09:26:01 DEBUG: [0, 0, 0, 0, 0, 0, 0, 0, 17873, 31295, 17623, 35063]
2021-04-29 09:26:01 DEBUG: [b'\x00\x00', b'\x00\x00']
2021-04-29 09:26:01 DEBUG: [b'\x00\x00', b'\x00\x00']
2021-04-29 09:26:01 DEBUG: [b'\x00\x00', b'\x00\x00']
2021-04-29 09:26:01 DEBUG: [b'\x00\x00', b'\x00\x00']
2021-04-29 09:26:01 DEBUG: [b'E\xd1', b'z?']
2021-04-29 09:26:02 DEBUG: [b'D\xd7', b'\x88\xf7']
2021-04-29 09:26:02 DEBUG: values: {'p1_voltage': 235.8428955078125, 'p2_voltage': 236.7672119140625, 'p3_voltage': 235.03369140625, 'p1_current': 2.44598388671875, 'p2_current': 3.5552978515625, 'p3_current': 8.40301513671875, 'p1_power_active': 218.265625, 'p2_power_active': 578.5353393554688, 'p3_power_active': 1906.537109375, 'p1_power_apparent': 228.78443908691406, 'p2_power_apparent': 727.11376953125, 'p3_power_apparent': 1909.166748046875, 'p1_power_reactive': 0.0, 'p2_power_reactive': -443.1054992675781, 'p3_power_reactive': 0.0, 'p1_power_factor': 0.9540228843688965, 'p2_power_factor': 0.7956600189208984, 'p3_power_factor': 0.9986225366592407, 'p1_phase_angle': -90.02694702148438, 'p2_phase_angle': -66.26799011230469, 'p3_phase_angle': -14.631210327148438, 'voltage_ln': 235.8812255859375, 'current_ln': 4.8004150390625, 'total_line_current': 14.404296875, 'total_power_active': 2703.338134765625, 'total_power_apparent': 2739.412353515625, 'total_power_reactive': -443.1054992675781, 'total_power_factor': 0.9744075536727905, 'total_phase_angle': -56.97538375854492, 'frequency': 50.039306640625, 'import_energy_active': 6013.00048828125, 'export_energy_active': 690.280029296875, 'import_energy_reactive': 24.600004196166992, 'export_energy_reactive': 1699.68017578125, 'total_energy_apparent': 6921.49609375, 'total_current': 33146.83203125, 'total_import_demand_power_active': 1966.701416015625, 'maximum_import_demand_power_apparent': 10556.521484375, 'import_demand_power_active': 0.0, 'maximum_import_demand_power_active': 0.0, 'export_demand_power_active': 0.0, 'maximum_export_demand_power_active': 0.0, 'total_demand_power_apparent': 2019.813720703125, 'maximum_demand_power_apparent': 10579.6533203125, 'neutral_demand_current': 5.019970893859863, 'maximum_neutral_demand_current': 31.911027908325195, 'p12_voltage': 408.58251953125, 'p23_voltage': 407.6905517578125, 'p31_voltage': 410.0390625, 'voltage_ll': 408.7706298828125, 'neutral_current': 5.25665283203125, 'p1n_voltage_thd': 1.7799999713897705, 'p2n_voltage_thd': 1.7200000286102295, 'p3n_voltage_thd': 1.6100000143051147, 'p1_current_thd': 75.54000091552734, 'p2_current_thd': 26.600000381469727, 'p3_current_thd': 6.900000095367432, 'voltage_ln_thd': 1.7033332586288452, 'current_thd': 36.3466682434082, 'p1_demand_current': 0.9893087148666382, 'p2_demand_current': 3.1454174518585205, 'p3_demand_current': 6.683976650238037, 'maximum_p1_demand_current': 33.19852066040039, 'maximum_p2_demand_current': 21.051992416381836, 'maximum_p3_demand_current': 22.1422176361084, 'p12_voltage_thd': 0.0, 'p23_voltage_thd': 0.0, 'p31_voltage_thd': 0.0, 'voltage_ll_thd': 0.0, 'total_energy_active': 6703.28076171875, 'total_energy_reactive': 1724.2801513671875}
2021-04-29 09:26:02 DEBUG: [31295, 17873, 59393, 17851, 31295, 17873, 59393, 17851, 62825, 17704, 17408, 17242, 41539, 17424, 20784, 17646, 57752, 17259, 55240, 17259, 50280, 17260, 2208, 17259, 25252, 17356, 19088, 17356, 55396, 17355, 1280, 17357, 10304, 16968]
2021-04-29 09:26:02 DEBUG: setValues[3] 1001:34
2021-04-29 09:26:02 DEBUG: [31295, 17873, 0, 0, 0, 0, 59393, 17851, 0, 0, 0, 0, 37356, 17452, 37356, 17452, 37356, 17452, 0, 0, 0, 0, 35063, 17623, 35063, 17623, 0, 0, 0, 0, 19448, 17880, 19448, 17880, 0, 0, 0, 0, 29382, 16249, 15064, 16244, 45152, 16203, 42426, 16255, 36225, 50141, 0, 0, 36225, 50141, 0, 0, 13977, 17707, 51409, 17252, 51016, 17461, 42326, 17646, 35584, 16412, 35328, 16483, 29376, 16646, 54898, 17653, 0, 0, 0, 0, 31242, 17660, 21065, 17257, 11989, 17466, 24246, 17604]
2021-04-29 09:26:02 DEBUG: setValues[3] 1101:82
2021-04-29 09:26:02 DEBUG: CRC invalid, discarding header!!
2021-04-29 09:26:02 DEBUG: Resetting frame - Current Frame in buffer - 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0x85 0xcc 0x2 0x3 0x6 0x40 0x0 0x17 0x4 0xab 0x70 0x17 0x10 0x0 0x0 0x4b 0x20 0x0 0x0 0xb 0x16 0x12 0x34 0x56 0x79 0x0 0x0 0xff 0xff 0x89 0x4d 0xb3 0x3f 0x4 0x7e 0xb3 0x3f 0x44 0x7e 0x3 0x1d 0x4d 0x81 0xd5 0xed 0x70 0x17 0x96 0x12 0x34 0x56 0x79 0x50 0x0 0xaf 0xff 0x89 0x4d 0xb3 0x3f 0x44 0x7e 0xb3 0x3f 0x4 0x7e 0x83 0x1d 0x1 0x0 0x1 0x0 0x36 0x59 0xa9 0xbe 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x3e 0x3c 0x55 0x42 0x0 0x0 0x0 0x0 0x3e 0x3c 0x55 0x42 0x0 0x0 0x0 0x0 0x10 0x6d 0xe8 0x41 0x41 0x0 0x64 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x80 0xc 0x80 0xc 0x0 0x0 0x0 0x0 0x1a 0x34 0x0 0x0 0x3 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x5 0x20 0x56 0x43 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0x6c 0x1c 0x2 0x3 0x6 0x40 0x0 0x17 0x4 0xab
2021-04-29 09:26:02 DEBUG: Frame check failed, ignoring!!
2021-04-29 09:26:02 DEBUG: Resetting frame - Current Frame in buffer -
2021-04-29 09:26:03 DEBUG: Not a valid unit id - 112, ignoring!!
2021-04-29 09:26:03 DEBUG: Resetting frame - Current Frame in buffer - 0x70 0x17 0x10 0x0 0x0 0x4b 0x20 0x0 0x0 0x1d 0x3a 0x12 0x34 0x56 0x79 0x24 0x0 0xdb 0xff 0x8a 0x4d 0xb3 0x3f 0x4 0x7e 0xb3 0x3f 0x44 0x7e 0x8 0x1d 0x9a 0x6d 0x8a 0x60 0x60 0xea 0x0 0x0 0x2f 0x3 0x39 0x3 0x1b 0x3 0x48 0x3 0x78 0xec 0xff 0xff 0x88 0x13 0x88 0x13 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x16 0xb6 0xb6 0xc0 0x70 0x17 0x96 0x12 0x34 0x56 0x79 0x0 0x0 0xff 0xff 0x8a 0x4d 0xb3 0x3f 0x44 0x7e 0xb3 0x3f 0x4 0x7e 0x88 0x1d 0x32 0xae 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0x87 0x54 0x2 0x3 0x6 0x40 0x0 0x17 0x4 0xab
2021-04-29 09:26:04 DEBUG: Not a valid unit id - 112, ignoring!!
2021-04-29 09:26:04 DEBUG: Resetting frame - Current Frame in buffer - 0x70 0x17 0x10 0x0 0x0 0x4b 0x20 0x0 0x0 0xb 0x16 0x12 0x34 0x56 0x79 0x0 0x0 0xff 0xff 0x8b 0x4d 0xb3 0x3f 0x4 0x7e 0xb3 0x3f 0x44 0x7e 0x3 0x1d 0x46 0x39 0xd1 0x6d 0x70 0x17 0x96 0x12 0x34 0x56 0x79 0x50 0x0 0xaf 0xff 0x8b 0x4d 0xb3 0x3f 0x44 0x7e 0xb3 0x3f 0x4 0x7e 0x83 0x1d 0x1 0x0 0x1 0x0 0xb 0x17 0xb3 0xbe 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x83 0x3a 0x55 0x42 0x0 0x0 0x0 0x0 0x83 0x3a 0x55 0x42 0x0 0x0 0x0 0x0 0x10 0x6d 0xe8 0x41 0x41 0x0 0x64 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x80 0xc 0x80 0xc 0x0 0x0 0x0 0x0 0x1c 0x34 0x0 0x0 0x3 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x5 0x20 0xde 0x5 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0x6e 0x84 0x2 0x3 0x6 0x40 0x0 0x17 0x4 0xab 0x70 0x17 0x10 0x0 0x0 0x4b 0x20 0x0 0x0 0xb 0x16 0x12 0x34 0x56 0x79 0x0 0x0 0xff 0xff 0x8c 0x4d 0xb3 0x3f 0x4 0x7e 0xb3 0x3f 0x44 0x7e 0xd 0x1d 0xdd 0x89 0xbf 0xc6 0x70 0x17 0x96 0x12 0x34 0x56 0x79 0x2c 0x0 0xd3 0xff 0x8c
2021-04-29 09:26:05 DEBUG: CRC invalid, discarding header!!
2021-04-29 09:26:05 DEBUG: Resetting frame - Current Frame in buffer - 0x4d 0xb3 0x3f 0x44 0x7e 0xb3 0x3f 0x4 0x7e 0x8d 0x1d 0xcc 0xcc 0x54 0x42 0x0 0x0 0x0 0x0 0x0 0x0 0xc0 0x41 0x9a 0x99 0x69 0x42 0x0 0x49 0xc5 0x47 0x0 0x0 0x70 0x42 0x0 0x0 0x70 0x42 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x1 0x0 0x0 0x0 0x41 0x0 0x64 0x0 0xec 0xf2 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0x47 0xda 0x2 0x3 0x6 0x40 0x0 0x17 0x4 0xab 0x70 0x17 0x10 0x0 0x0 0x4b 0x20 0x0 0x0 0x1d 0x3a 0x12 0x34 0x56 0x79 0x24 0x0 0xdb 0xff 0x8d 0x4d 0xb3 0x3f 0x4 0x7e 0xb3 0x3f 0x44 0x7e 0x8 0x1d 0x9c 0x6d 0x8a 0x60 0x60 0xea 0x0 0x0 0x2f 0x3 0x39 0x3 0x1b 0x3 0x48 0x3 0x78 0xec 0xff 0xff 0x88 0x13 0x88 0x13 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x90 0x7f 0xf6 0x52 0x70 0x17 0x96 0x12 0x34 0x56 0x79 0x0 0x0 0xff 0xff 0x8d 0x4d 0xb3 0x3f 0x44 0x7e 0xb3 0x3f 0x4 0x7e 0x88 0x1d 0x28 0xda 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0x83 0xf0
2021-04-29 09:26:05 DEBUG: Frame check failed, ignoring!!
2021-04-29 09:26:05 DEBUG: Resetting frame - Current Frame in buffer -
2021-04-29 09:26:06 DEBUG: Getting Frame - 0x3 0x6 0x40 0x0 0x17
2021-04-29 09:26:06 DEBUG: Factory Request[ReadHoldingRegistersRequest: 3]
2021-04-29 09:26:06 DEBUG: Frame advanced, resetting header!!
2021-04-29 09:26:06 DEBUG: validate: fc-[3] address-1601: count-23
2021-04-29 09:26:06 DEBUG: getValues fc-[3] address-1601: count-23
2021-04-29 09:26:06 DEBUG: send: [ReadRegisterResponse (23)]- b'02032e04d200000005000500050005000000000000000f0001271027102710fc18fc18fc1805dc0078000000004e2000007700'

[djmoonshine]

Did some more testing. No success but found something that seems a bit odd to me, but might have some explanation.
The issue seems a bit like the other issue #8
Found some logs from both @jonesPD and @nmakel.
I only receive getValues for 1601 and my responses does not look like the ones from @nmakel that has a working example.
Logs from me:

2021-04-29 14:34:20 DEBUG: getValues fc-[3] address-1601: count-23
2021-04-29 14:34:20 DEBUG: send: [ReadRegisterResponse (23)]- b'02032e000000000005000500050005000000010000000f0001271027102710fc18fc18fc1805dc0078000000004e2000000a36'

Log from @nmakel :

2021-03-28 15:31:50 DEBUG: getValues fc-[3] address-1601: count-23
2021-03-28 15:31:50 DEBUG: send: [ReadRegisterResponse (23)]- b'02030000003102032e04d200000032003200320032000000000000000f0001271027102710fc18fc18fc1805dc0078000000004e200000'

Looking at the bytes:
From me:
02032e000000000005000500050005000000010000000f0001271027102710fc18fc18fc1805dc0078000000004e2000000a36
From nmakel:
02030000003102032e04d200000032003200320032000000000000000f0001271027102710fc18fc18fc1805dc0078000000004e200000

Some of the data is diffrent due to some differences in settings. But why does the log from nmakel have 020300000031 in the beginning and after that almost matchning data?
Sorry of there is a natural explanation to this. But I wanted to point it out since i noticed the same in the logs from the other issue.
The data there was:
02032e04d200000032003200320032000000000000000f0001271027102710fc18fc18fc1805dc0000000000004e200000ca71

[nmakel]

I'm setting up a new StorEdge inverter and already had a SDM630 so this code would fit perfect!

Great, thanks for trying this project out.

The setup might be a bit different since I don't have normal CT:s, but rogowski coils.
https://www.aliexpress.com/item/32994844856.html

Therefore i'm not 100% sure what CT value I should set and how it affects. Since the meter is reporting correct values I don't understand what exactly this setting does.

Shouldn't matter. I don't have CTs either, and everything works fine.

I have tried this config:

[server]
device = /dev/serial/by-id/usb-Silicon_Labs_CP2104_USB_to_UART_Bridge_Controller_0106F08D-if00-port0
meters = import_export

[import_export]
type=sdm630
device=/dev/serial/by-id/usb-Silicon_Labs_CP2104_USB_to_UART_Bridge_Controller_010D5A07-if00-port0
baud=9600
src_address=1
dst_address=2
refresh_rate = 5
ct_current = 5

Looks good.

2021-04-29 09:26:05 DEBUG: Frame check failed, ignoring!!
2021-04-29 09:26:05 DEBUG: Resetting frame - Current Frame in buffer -
2021-04-29 09:26:06 DEBUG: Getting Frame - 0x3 0x6 0x40 0x0 0x17
2021-04-29 09:26:06 DEBUG: Factory Request[ReadHoldingRegistersRequest: 3]
2021-04-29 09:26:06 DEBUG: Frame advanced, resetting header!!
2021-04-29 09:26:06 DEBUG: validate: fc-[3] address-1601: count-23
2021-04-29 09:26:06 DEBUG: getValues fc-[3] address-1601: count-23
2021-04-29 09:26:06 DEBUG: send: [ReadRegisterResponse (23)]- b'02032e04d200000005000500050005000000000000000f0001271027102710fc18fc18fc1805dc0078000000004e2000007700'

Those first few frame check errors might be due to an incomplete message still in the serial buffer. The last few lines look fine, though.

The difference in logged requests might be due to me using the TCP version. The last few bytes are crc checks, and the first few bytes are RTU to TCP encapsulation.

Still, you're running into similar issues as #8, so I'm wondering whether you can post the inverter firmware version you have.

[djmoonshine]

Hello!

Thank you for the quick response. Too bad the thing i found wasn't an error.

The "Not a valid unit id - 112, ignoring!!" errors I actually get constantly. It might have something to do with the fact that there seems to be something connected to the bus since there is a small pcb with a cable on it, in the RS485-1 port of the communication board of the inverter. Like a RS485 splitter. I was thinking it had something to do with the battery communication, even if the actual battery is connected to Canbus.

Here are my versions:
CPU Version: 4.12.28
DSP1 Version: 1.13.1781
DSP2 Version: 2.19.1440
DCDC Version: 22.91
WSA Version: 4.12.7

If it seems to be hard to find the issue for this problem we have, I might give it a try to find the modbus registers for the Inepro pro380 meter instead and try to fork your code to implement it's registers instead.

[jonesPD]

I've managed to find a workaround to #8 by implemented a Janitza compatible metering proxy. With that I get actual powers reported, but the energy reporting is still off (whether I report all zero energy values or actuals). Pretty sure I'm using the right registers with the right values (any helpful ideas here might be helpful).

I've had a version update since starting #8 and am now at version:
CPU Version: 4.12.28
DSP1 Version: 1.0.1159
DSP2 Version: 2.0.1011
WSA Version: 4.12.7
Haven't yet tried if an SE metering proxy now works again.
I will share the Janitza implementation when I get around to it :-).

[nmakel]

The "Not a valid unit id - 112, ignoring!!" errors I actually get constantly. It might have something to do with the fact that there seems to be something connected to the bus since there is a small pcb with a cable on it, in the RS485-1 port of the communication board of the inverter. Like a RS485 splitter. I was thinking it had something to do with the battery communication, even if the actual battery is connected to Canbus.

Interesting. What model battery do you have connected?

CPU Version: 4.12.28
DSP1 Version: 1.13.1781
DSP2 Version: 2.19.1440
DCDC Version: 22.91
WSA Version: 4.12.7

Thanks. Just like @jonesPD you're on a newer firmware version than I am.

If it seems to be hard to find the issue for this problem we have, I might give it a try to find the modbus registers for the Inepro pro380 meter instead and try to fork your code to implement it's registers instead.

You can find the register map at the end of this document. It should be fairly simple to adapt the current script to the Inepro. Please share your results if you decide to try this!

[nmakel]

I will share the Janitza implementation when I get around to it :-).

Please do!

[djmoonshine]

``> Interesting. What model battery do you have connected?

It's actually a DIY battery but it's reporting data over canbus with same protocol as the LG Resu battery.

Thanks. Just like @jonesPD you're on a newer firmware version than I am.

Ok!

You can find the register map at the end of this document. It should be fairly simple to adapt the current script to the Inepro. Please share your results if you decide to try this!

Thank you. I actually already started and also found another document that better explained the settings registers better. I will report back with the results. So far no luck since it seems to get stuck at getting settings registers even here.

Also a note.. I have actually confirmed that the battery has 112.

 "batteries": {
        "Battery1": {
            "c_manufacturer": "48V_LG",
            "c_model": "LGC RESU 10",
            "c_version": "48V DCDC 2.2.91 BMS 0.0.0",
            "c_serialnumber": "7E043FB3",
            "c_deviceaddress": 112,
            "c_sunspec_did": 0,
            "rated_energy": 9800.0,
            "maximum_charge_continuous_power": 5000.0,
            "maximum_discharge_continuous_power": 5000.0,
            "maximum_charge_peak_power": 3200.0,
            "maximum_discharge_peak_power": 3200.0,
            "average_temperature": 22.0,
            "maximum_temperature": 0.0,
            "instantaneous_voltage": -1.224738359451294,
            "instantaneous_current": 0.0,
            "instantaneous_power": 0.0,
            "lifetime_export_energy_counter": 0,
            "lifetime_import_energy_counter": 0,
            "maximum_energy": 9800.0,
            "available_energy": 8800.0,
            "soh": 100.0,
            "soe": 56.0,
            "status": 65535,
            "status_internal": 13,
            "event_log": 0,
            "event_log_internal": 0
        }
``

[djmoonshine]

@jonesPD Thank you for the details. Is your Janitza implementation based on this code or a completely new project?
I have been trying to use the registers for the PRO380 meter for a while now, but ends up stuck in the same way as the original code, where it only pulls the settings registers and after that complains with communications errors.

So I have also been trying the Janizta now. With that setting, the inverter seems to start pulling data from the measurement registers right away, (19021 with a length of 24) but I still don't get it to work. I would be very happy if you could share your code and I can give that a go. You said you has issues with energy registers. One thing i noticed is that they should be stored in Wh in the Janizta but I get them in kWh from the SDM630. I'm not sure how yours are stored?

Another thing that is on my mind is that the configuration in the setapp for me is missing the sunspec protocol in the menu for RS485-1. That might be a big deal? But I still can choose the other brands of meters like the PRO380 and Janitza.

[jonesPD]

@djmoonshine: my code is attached, it is heavily based on this project, but not yet integrated so that you can for example select in the config file the type of meter you want to proxy. I've based it the register map in this PDF.
janitza-registers-umg104-en.pdf
I don't recall not having the SunSpec protocol in the menu for RS485-1 (I have my meterproxy connected to RS485-2, to test whether that made the SE-proxy work, which didn't make a difference).

The power readings seem to work fine, the energy reading is odd. I don't have a recent SetApp screenshot, and since the sun has almost set it is better to provide one tomorrow. In the solaredge app you can see a different chart that now shows not only the converted solar power, but also the consumed power, and self consumption in a single graph.

As you can see in the screenshot though is that the energy totals are off (except for the system production), and that it doesn't show any exported energy. I haven't been able to fix this, and testing is also rather slow, because when the SE-server detects a major disruption in the data (e.g. when you change signs or start providing data), you have to wait until the next day for the graphs to come back).
My assumption so far has been that negative power indicates energy is provided to the grid, however, neither the total, or the import/exported energy is negative. Any thoughts and suggestions what to test at my end are welcome.

The code is needs some cleaning up, and integration with the original project.
@nmakel : what are your thoughts about integrating my code with your project?

janitza.zip

@djmoonshine : success in getting it to work!

[nmakel]

@nmakel : what are your thoughts about integrating my code with your project?

Thanks for posting your working example. I'll have a look at the differences and perhaps I can find the reason why the original isn't working on newer firmware versions.

[nmakel]

@djmoonshine: my code is attached, it is heavily based on this project, but not yet integrated so that you can for example select in the config file the type of meter you want to proxy.

Could you also provide me with the configuration file you are using?

[jonesPD]

The screen in SetApp is odd, since it shows the (correct) actual power, and at the same time a negative import of the same number:

[djmoonshine]

@jonesPD Thank you so much for sharing your code. It actually kind of worked, but with some weird behavior in about the same way as your screenshot. The energy bugs the most. I actually found out that my exported energy likes to show the data for " Reactive power L2", but switches to the correct data to, so it can't be just something totally wrong with the registers in the code.
The data from the SDM also looks correct so that don't seem to be the issue either. I debugged this a lot during the weekend, but for now, the issue below is the bigger one.

Also as I have mentioned before. I get "meter communication error 3x6e" in the inverter. That error didn't just go away with this code, bacause that seems to be another issue. When I disable the battery communication the communication with the meter works fine, but with the battery activated i get those "Not a valid unit id - 112, ignoring!!" which i guess is normal, because it's the communication to the battery. But I also get a lot of "DEBUG: CRC invalid, discarding header!!" and almost no requests for data for the meter. So i assume the crc errors happens for the requests to the "meter". I have tried different configurations of termination resistors both at the inverter end with the dip switch both on and off (according to the manual it should be off) and also at the meter end (or actually in this case an USB adapter in a raspberry pi) but with no luck. So at the moment i cannot have the meter and battery running at the same time, and that is a big deal since a lot of the functionality i want with the battery, needs a import/export meter.

Any suggestions? I have ordered a higher quality RS485 adapter to see if that is the issue. But it will not arrive until the end of the week.

[djmoonshine]

Just now I actually foud out an interesting thing.
I upgraded pymodbus to 2.5.1 (was on 2.4.0 before), no change there.
But I did a more complete check on the debug messages now for the CRC errors and find this:
2021-05-03 10:50:20 DEBUG: Resetting frame - Current Frame in buffer - 0xff 0xff 0xff... (repeated lot of times)... 0xff 0x51 0x5c 0x2 0x3 0x4a 0x4c 0x0 0x18 0x92 0x3c
The interesting piece here is that the last part ( 0xff 0x51 0x5c 0x2 0x3 0x4a 0x4c 0x0 0x18 0x92 0x3c) is the actual request for the Janitza registers (0x2 0x3 0x4a 0x4c 0x0 0x18 0x92 0x3c).
Not sure how this happens, is it a something that happens because of all traffic to and from the battery it's to tight in timing? Or something else that can be fixed? Or can a termination issue cause this? I get that now we off topic for this code though :( But I guess other could end up in the same situation.

[jonesPD]

The energy bugs the most. I actually found out that my exported energy likes to show the data for " Reactive power L2", but switches to the correct data to, so it can't be just something totally wrong with the registers in the code.

So if I put the export energy values in the L2 reactive power register, they show up as export energy in SetApp? Thanks for sharing I'll try that too

The data from the SDM also looks correct so that don't seem to be the issue either. I debugged this a lot during the weekend, but for now, the issue below is the bigger one.

Have you tried connecting the meter and the battery to a separate RS485 port each? Are both set to the same baudrate (9600baud) and parity?
What kind of cable are you using to connect? The SE manual has some guidelines.