Dont work with US5000 Firmware 2.0

[HeldvomForst]

Hello

I try this Projekt but it doesnt work with my new US5000

I have 3 Batteries over MQTT Home Assistant only get Information for 2 of this and there are only 0 Values
I also see only 3 Main values "Pylontech Battery Current" "Pylontech DC Power" "Pylontech Power OUT" all are wrong.

I Think Pylontech chance something in the Communication they send more Data.

Here the Output of "PWR" on the ESP:
`
pwr

@

Power Volt Curr Tempr Tlow Tlow.Id Thigh Thigh.Id Vlow Vlow.Id Vhigh Vhigh.Id Base.St Volt.St Curr.St Temp.St Coulomb Time B.V.St B.T.St MosTempr M.T.St SysAlarm.St

1 49093 -2358 16800 15100 12 16100 0 3272 13 3273 0 Dischg Normal Normal Normal 52% 2025-04-04 05:23:54 Normal Normal 16400 Normal Normal

2 49095 -1224 18200 15600 10 16000 5 3272 0 3274 5 Dischg Normal Normal Normal 51% 2025-04-04 05:23:53 Normal Normal 16700 Normal Normal

3 49087 -1176 18200 16000 0 16100 5 3271 0 3274 12 Dischg Normal Normal Normal 53% 2025-04-04 05:23:53 Normal Normal 17000 Normal Normal

4 - - - - - - - Absent - - - - - - -

5 - - - - - - - Absent - - - - - - -

6 - - - - - - - Absent - - - - - - -

7 - - - - - - - Absent - - - - - - -

8 - - - - - - - Absent - - - - - - -

9 - - - - - - - Absent - - - - - - -

10 - - - - - - - Absent - - - - - - -

11 - - - - - - - Absent - - - - - - -

12 - - - - - - - Absent - - - - - - -

13 - - - - - - - Absent - - - - - - -

14 - - - - - - - Absent - - - - - - -

15 - - - - - - - Absent - - - - - - -

16 - - - - - - - Absent - - - - - - -

Command completed successfully

$$

pylon_debug>
`

[Rustimation]

Hello,
I had the same problem. The US5000 Soft Version 2.0 outputs more values when the 'pwr' command is used. I have altered the original code by Ireneusz Zielinski (not the one by hidaba shown here ) but the logic can bei transferred quite easily. Take look at this closed issue @ Ireneusz' github site.
irekzielinski#31
Also available in German @ rustimation.eu
Regards
Chris

[hidaba]

do you have all 2.0 o a mix of version?

[HeldvomForst]

I have a mix.
1 US5000 --> Master; Software 2.0; Release Date : 24-05-13
2 US2000 --> Slave; Software 2.6; Release Date : 21-09-26

The US2000 has the old Firmware
In Manuell stand the newest Baterie must be Master.

I Changed the code this code is working with my master battery:

`bool parsePwrResponse(const char* pStr)
{
if(strstr(pStr, "Command completed successfully") == NULL)
{
return false;
}

int chargeCnt = 0;
int dischargeCnt = 0;
int idleCnt = 0;
int alarmCnt = 0;
int socAvg = 0;
int socLow = 0;
int tempHigh = 0;
int tempLow = 0;

// Reset the entire g_stack each time we parse
memset(&g_stack, 0, sizeof(g_stack));

for(int ix=0; ix<MAX_PYLON_BATTERIES; ix++)
{
char szToFind[32];
snprintf(szToFind, sizeof(szToFind), "\r\r\n%d ", ix+1);

const char* pLineStart = strstr(pStr, szToFind);
if(pLineStart == NULL)
{
  return false;
}

pLineStart += 3; // skip \r\r\n

extractStr(pLineStart, 55, g_stack.batts[ix].baseState,    sizeof(g_stack.batts[ix].baseState));
if(strcmp(g_stack.batts[ix].baseState, "Absent") == 0)
{
  g_stack.batts[ix].isPresent = false;
}
else
{
  extractStr(pLineStart, 91, g_stack.batts[ix].baseState,    sizeof(g_stack.batts[ix].baseState));
  g_stack.batts[ix].isPresent = true;
  extractStr(pLineStart, 100, g_stack.batts[ix].voltageState, sizeof(g_stack.batts[ix].voltageState));
  extractStr(pLineStart, 109, g_stack.batts[ix].currentState, sizeof(g_stack.batts[ix].currentState));
  extractStr(pLineStart, 118, g_stack.batts[ix].tempState,    sizeof(g_stack.batts[ix].tempState));
  extractStr(pLineStart, 136, g_stack.batts[ix].time,        sizeof(g_stack.batts[ix].time));
  extractStr(pLineStart, 157, g_stack.batts[ix].b_v_st,      sizeof(g_stack.batts[ix].b_v_st));
  extractStr(pLineStart, 166, g_stack.batts[ix].b_t_st,      sizeof(g_stack.batts[ix].b_t_st));

  // Each battery's voltage is in mW, current in mA, temperature in milli-deg C.
  g_stack.batts[ix].voltage = extractInt(pLineStart, 6);
  g_stack.batts[ix].current = extractInt(pLineStart, 13);
  g_stack.batts[ix].tempr   = extractInt(pLineStart, 20);
  g_stack.batts[ix].cellTempLow    = extractInt(pLineStart, 27);
  g_stack.batts[ix].cellTempHigh   = extractInt(pLineStart, 43);
  g_stack.batts[ix].cellVoltLow    = extractInt(pLineStart, 59);
  g_stack.batts[ix].cellVoltHigh   = extractInt(pLineStart, 75);
  g_stack.batts[ix].soc            = extractInt(pLineStart, 127);

  // Summation for entire stack
  g_stack.batteryCount++;
  g_stack.currentDC += g_stack.batts[ix].current;   // total mA
  g_stack.avgVoltage += g_stack.batts[ix].voltage;  // total mV
  socAvg += g_stack.batts[ix].soc;

  // Determine overall state (alarm, charge, discharge, etc.)
  if(!g_stack.batts[ix].isNormal()){ alarmCnt++; }
  else if(g_stack.batts[ix].isCharging())   { chargeCnt++; }
  else if(g_stack.batts[ix].isDischarging()){ dischargeCnt++; }
  else if(g_stack.batts[ix].isIdle())       { idleCnt++; }
  else { alarmCnt++; }

  // For the first battery, store initial lowest/highest values
  if(g_stack.batteryCount == 1)
  {
    socLow = g_stack.batts[ix].soc;
    tempLow  = g_stack.batts[ix].cellTempLow;
    tempHigh = g_stack.batts[ix].cellTempHigh;
  }
  else
  {
    if(socLow > g_stack.batts[ix].soc)             socLow = g_stack.batts[ix].soc;
    if(tempHigh < g_stack.batts[ix].cellTempHigh)  tempHigh = g_stack.batts[ix].cellTempHigh;
    if(tempLow > g_stack.batts[ix].cellTempLow)    tempLow = g_stack.batts[ix].cellTempLow;
  }
}

}
`

[Rustimation]

3 or 4 days ago, I have opened a ticket with Pylontech Support and asked the following questions:

• Is the new output format the same for all new battery models or only for new US5000?
• What do you recommend when the user has a mixed configuration of old and new FW?

Still waiting for an answer. I guess they will recommend to upgrade the firmware of the older batteries. However, I am a bit sceptical whether this is something an average user should do as the risk of bricking the battery if anything goes wrong is quite high. So probably I am going to adapt the code once again to cater to both types of firmware.

[HeldvomForst]

I think the second question I can anwser.
You have to use the newest Battery for Master.
If the Masterbattery has the new Firmware you get the all Data for "pwr" in the new Format.

I you want to support all two Dataformats search first for Tlow.Id if you found it you use the new format if you dont found it you use the old format.

[hidaba]

Hi @Einstein098

I Changed the code this code is working with my master battery:

as soon as I have time I try to put your code with a variable to choose if old or new firmware

Thank you

[Rustimation]

This is the reply from Pylontechs allegedly excellent support:
Hallo,
We are not authorized for this type of information and so are not in a position to provide any useful assistance with your question. However, our protocols are available on the Internet. You can try to find it.
Pylontech DE

This really sucks!
Nonetheless, since there is a solution by setting the newest firmware/battery as master, I don't care.
Rgds
Chris

[hidaba]

Hello,

I modified for firmware version old and new, in PylontechMonitoring.h I added firmware version:

// Firmware Version
// 1 old firmware
// 2 new firmware
const int FW_VERSION=1;

I'vent new firmware, someone can test this?

[HeldvomForst]

Hello

I think it works with the new Firmware.
I get values.

Good work.
If I found some Problems I will write it here.
Thanks

[hidaba]

Hi @Einstein098
there was a problem with status battery, you can use latest firmware