error on command sudo ./inverterctl --device usb --verbose set-max-charge-voltage 54.2 54.0

[Maxym77]

Hi my inverter is this: infinisolar
https://www.solarpower24.it/negozio/inverter/inverter-hybrid/sp24-infinisolar-v-iv-twin-6kw-48v-inverter-solare-ibrido-off-grid-isola/

Have PI18 protocol.

I suppose the "," character for "^S015MCHGVmmm,nnn" have problem with CRC calculation.

sudo ./inverterctl --device usb --verbose set-max-charge-voltage 54.2 54.0
voltronic::Device::send(): writing 20 bytes
0x0000: 5e 53 30 31 35 4d 43 48 47 56 35 34 32 2c 35 34 ^S015MCHGV542,54
0x0010: 30 cd 48 0d 0.H.
voltronic::USBDevice::write(): dataSize=20, writeSize=8
0x0000: 5e 53 30 31 35 4d 43 48 47 56 35 34 32 2c 35 34 ^S015MCHGV542,54
0x0010: 30 cd 48 0d 0.H.
voltronic::Device::writeLoop(): bytesWritten=8
voltronic::USBDevice::write(): dataSize=12, writeSize=8
0x0000: 47 56 35 34 32 2c 35 34 30 cd 48 0d GV542,540.H.
voltronic::Device::writeLoop(): bytesWritten=8
voltronic::USBDevice::write(): dataSize=4, writeSize=4
0x0000: 30 cd 48 0d 0.H.
voltronic::Device::writeLoop(): bytesWritten=8
voltronic::Device::readLoop(): bytesRead=8
voltronic::Device::recv(): got 5 bytes
0x0000: 5e 30 1b e3 0d ^0...
error

Other commands work fine, like this:

sudo ./inverterctl --device usb --verbose get-status
voltronic::Device::send(): writing 10 bytes
0x0000: 5e 50 30 30 35 47 53 58 14 0d ^P005GSX..
voltronic::USBDevice::write(): dataSize=10, writeSize=8
0x0000: 5e 50 30 30 35 47 53 58 14 0d ^P005GSX..
voltronic::Device::writeLoop(): bytesWritten=8
voltronic::USBDevice::write(): dataSize=2, writeSize=2
0x0000: 14 0d ..
voltronic::Device::writeLoop(): bytesWritten=8
voltronic::Device::readLoop(): bytesRead=8
voltronic::Device::readLoop(): bytesRead=8
voltronic::Device::readLoop(): bytesRead=8
voltronic::Device::readLoop(): bytesRead=8
voltronic::Device::readLoop(): bytesRead=8
voltronic::Device::readLoop(): bytesRead=8
voltronic::Device::readLoop(): bytesRead=8
voltronic::Device::readLoop(): bytesRead=8
voltronic::Device::readLoop(): bytesRead=8
voltronic::Device::readLoop(): bytesRead=8
voltronic::Device::readLoop(): bytesRead=8
voltronic::Device::readLoop(): bytesRead=8
voltronic::Device::readLoop(): bytesRead=8
voltronic::Device::readLoop(): bytesRead=8
voltronic::Device::recv(): got 111 bytes
0x0000: 5e 44 31 30 36 32 33 36 39 2c 35 30 30 2c 32 33 ^D1062369,500,23
0x0010: 30 30 2c 34 39 39 2c 30 36 34 34 2c 30 35 32 39 00,499,0644,0529
0x0020: 2c 30 31 30 2c 35 32 35 2c 30 30 30 2c 30 30 30 ,010,525,000,000
0x0030: 2c 30 31 31 2c 30 30 30 2c 30 34 33 2c 30 33 34 ,011,000,043,034
0x0040: 2c 30 30 30 2c 30 30 30 2c 30 30 30 31 2c 30 30 ,000,000,0001,00
0x0050: 30 30 2c 31 32 31 37 2c 30 30 30 30 2c 30 2c 32 00,1217,0000,0,2
0x0060: 2c 30 2c 31 2c 32 2c 32 2c 30 2c 30 a7 f2 0d ,0,1,2,2,0,0...
Grid voltage: 236.9 V
Grid frequency: 50 Hz
AC output voltage: 230 V
AC output frequency: 49.9 Hz
AC output apparent power: 644 VA
AC output active power: 529 Wh
Output load percent: 10 %
Battery voltage: 52.5 V
Battery voltage from SCC: 0 V
Battery voltage from SCC2: 0 V
Battery discharge current: 11 A
Battery charge current: 0 A
Battery capacity: 43 %
Inverter heat sink temperature: 34 °C
MPPT1 charger temperature: 0 °C
MPPT2 charger temperature: 0 °C
PV1 input power: 1 Wh
PV2 input power: 0 Wh
PV1 input voltage: 121.7 V
PV2 input voltage: 0 V
Configuration state: Default
MPPT1 charger status: Charging
MPPT2 charger status: Abnormal
Load connection: Connected
Battery power direction: Discharge
DC/AC power direction: DC/AC
Line power direction: Do nothing
Local parallel ID: 0

You can help me?

[eliafino]

Hi, in this case, the problem is in CRC.

So, if command in HEX is: 5e 53 30 31 35 4d 43 48 47 56 35 34 32 2c 35 34 30
CRC is: cd 48

CRC need to be: cd 49 (48 + 1)

[gch1p]

hi, i'll look into this

[eliafino]

hi, i'll look into this

Thanks! And so, there is a way to send raw HEX command with CRC included (not calculated)?

[eliafino]

Unfortunately, the CRC+1 doesn't seem to be the problem.
If command is > 16 no way to send via USB

[gch1p]

I can't reproduce it. On my inverter (InfiniSolar V 5KW), it works.

# inverterctl  --device usb --verbose set-max-charge-voltage 54.2 54.0
voltronic::Device::send(): writing 20 bytes
0x0000: 5e 53 30 31 35 4d 43 48 47 56 35 34 32 2c 35 34  ^S015MCHGV542,54
0x0010: 30 cd 48 0d                                      0.H.
voltronic::USBDevice::write(): dataSize=20, writeSize=8
0x0000: 5e 53 30 31 35 4d 43 48 47 56 35 34 32 2c 35 34  ^S015MCHGV542,54
0x0010: 30 cd 48 0d                                      0.H.
voltronic::Device::writeLoop(): bytesWritten=8
voltronic::USBDevice::write(): dataSize=12, writeSize=8
0x0000: 47 56 35 34 32 2c 35 34 30 cd 48 0d              GV542,540.H.
voltronic::Device::writeLoop(): bytesWritten=8
voltronic::USBDevice::write(): dataSize=4, writeSize=4
0x0000: 30 cd 48 0d                                      0.H.
voltronic::Device::writeLoop(): bytesWritten=8
voltronic::Device::readLoop(): bytesRead=8
voltronic::Device::recv(): got 5 bytes
0x0000: 5e 31 0b c2 0d                                   ^1...
ok

Everything's fine with CRC calculation and command size > 16 is not a problem.

Are you sure that the voltages you're trying to set are allowed for your particular model and that this setting is even configurable on it?

Another thought, try changing battery type to "user" and then try again. I have it set to "user" on my inverter, maybe it's not allowed to change these voltages in other modes?..

[eliafino]

Really not understand, but with RJ45-RS232 cable and USB adapter, this command work good. USB directly, no.

[gch1p]

When using adapter, you're still using --device usb, right?

[eliafino]

With USB, --device usb, this long command not work. with serial, --device serial, work correctly.

[gch1p]

Understood. Then it's something USB and/or HIDAPI related. I'm sending the command in 8 bytes chunks, and as you can see, it works with my inverter, but obviously it's not as good as it should be because it doesn't work on yours. Needs more research and testing.

Is there any other software that works with USB and your inverter and supports long command and works correctly?