no help found for using multiple inverters about 123solar

[jeanmarc77]

What's missing for helping ? https://github.com/jeanmarc77/123solar/wiki/3)-Protocols

[dr-ni]

It's not clear for me how to supply {'ADR'.$invt_num} variable and ${'COMOPTION'.$invt_num} when using two inverters - for example two mi600 with mi600-webif protocol.

• One mi600: "mi600-no1-ip username password" can be supplied in the option field
• Where or how can the second inverter "mi600-no2-ip username password" be supplied?

The help doesn't tell me anything about such setup.

[jeanmarc77]

Your "$HOST" variable should rather be ${'ADR'.$invt_num} and not passed as a com option

[dr-ni]

so how exactly in my case?

mi600-no1-ip username1 password1
mi600-no2-ip username2 password2

see mi600-webif.php

[jeanmarc77]

Pass username and password as ${'COMOPTION'.$invt_num};

$OPTIONS = ${'COMOPTION'.$invt_num};
list ($USER, $PASSWD) = explode(' ', $OPTIONS, 2);
$URL = 'http://'.${'ADR'.$invt_num}.'/status.html';

[dr-ni]

can you give a hard coded example for the setup above, it's still unclear for me:

mi600-no1-ip username1 password1
mi600-no2-ip username2 password2

[jeanmarc77]

<?php
# Stand-alone protocol for Bosswerk MI600 (Deye SUN600G3-EU-230) inverter
# It's now also working with more than one inverter in a grid.
# Author: https://github.com/dr-ni/123solar_mi600, adapted by SOE135
# License GPL-v3+
#
# Please supply '<host> <user> <passwd>' for your MI600 in Admin -> Inverter(s) configuration
# Use the field 'Communication options'

if (!defined('checkaccess')) {die('Direct access not permitted');}
$CMD_RETURN = ''; // always initialize
$MATCHES = '';
$ERR = "0";
$SDTE = date("Ymd H:i:s");
$OPTIONS = ${'COMOPTION'.$invt_num};
list ($USER, $PASSWD) = explode(' ', $OPTIONS, 2);
$URL = 'http://'.${'ADR'.$invt_num}.'/status.html';
// ##### The location of some files has changed in this patch! ####
// ##### Please move your old lastKWHtotal.dat file manually from inverters data-directory to the errors subdirectory! 
$LOGFILE = "$INVTDIR/errors/mi600.log";
$MI600_DATAFILE = "$INVTDIR/errors/mi600.dat";
$LAST_KWHTOTAL_FILE = "$INVTDIR/errors/lastKWHtotal.dat";
// strings
$I1V = null;
$I1A = null;
$I1P = null;
$I2V = null;
$I2A = null;
$I2P = null;
$I3V = null;
$I3A = null;
$I3P = null;
$I4V = null;
$I4A = null;
$I4P = null;
// inverters
$FRQ = null;
$EFF = null;
$INVT = null;
$BOOT = null;
$KWHT = null;
// grids
$G1V = null;
$G1A = null;
$G1P = null;
$G2V = null;
$G2A = null;
$G2P = null;
$G3V = null;
$G3A = null;
$G3P = null;
// variable names to store process values for the specific inverter
$LastP = 'MI600INVT'.$invt_num.'_LASTP';
$LastPTS = 'MI600INVT'.$invt_num.'_LASTPTS';
$LastKWHT = 'MI600INVT'.$invt_num.'_LASTKWHT';
// other needed variables
$MaxRetryCount = 5;
$RetryCounter = 0;
$DataOK = 0;
$P = (float) 0;
$Dt = 0;
$MinSecondsBetweenMeasurements = 10;
$Now = time();
$KWHTDifference = (float) 0; // difference between the calculated KWHT-value and the (real) KWHT-value from inverters webif
$KWHTCorrectionFactor = (float) 0; // standard behaviour, no correction needed

// initializing process variables
if (!isset($P)) $P = 0;
if (!isset($$LastP)) $$LastP = (float) 0; // last determined power value for this inverter
if (!isset($$LastPTS)) $$LastPTS = $Now - $MinSecondsBetweenMeasurements; // last determination time for the power value of this inverter
if (!isset($$LastKWHT)) {
  $$LastKWHT = (float) 0;  // last KWH-total value of this inverter
  // In case LastKWHT is not properly set (i.e. after an 123solar restart) we try to load the stored value from disk.
  $StoredTotalKWH = (float) exec("cat ".$LAST_KWHTOTAL_FILE);
  if ($StoredTotalKWH > $$LastKWHT) {
    $$LastKWHT = $StoredTotalKWH;
  }
}

// the first measurement should be taken immediately, the following ones at the earliest after $MinSecondsBetweenMeasurements seconds
$SecondsElapsed = ($Now - $$LastPTS);
if ($SecondsElapsed < $MinSecondsBetweenMeasurements) {
  // we have to wait at least n sconds
  sleep($MinSecondsBetweenMeasurements - $SecondsElapsed);
}

// connect to mi600/deye
$Connected = @fsockopen(${'ADR'.$invt_num}, 80);
if ($Connected) {
  fclose($Connected);
  // get data from webif
  while (($RetryCounter < $MaxRetryCount) && ($DataOK == 0)) {
    $Res = exec("curl -s -u ".$USER.":".$PASSWD ." ".$URL." > ".$MI600_DATAFILE);
    // decoding the data
    $PNowString = exec("grep \"webdata_now_p = \"  ".$MI600_DATAFILE."| awk -F '\"' '{print $2}'");
    if ($PNowString) {
      // The webif of the inverter could be read successfully.
      $P = (float) $PNowString;
      $$LastP = $P;
      $DataOK = 1;
      $Now = time();
      $Dt = $Now - $$LastPTS;
      $$LastPTS = $Now;
      // If value for webdata_now_p could be read from webif it is sure that the value for webdata_total_e is also existing
      $TotalKWHStringWebIf = exec("grep \"webdata_total_e = \"  ".$MI600_DATAFILE."| awk -F '\"' '{print $2}'");
      if (!$$LastKWHT) {
        if ($TotalKWHStringWebIf) {
           $$LastKWHT = (float) $TotalKWHStringWebIf;
        }  
        // check if our own calculated KWHT-value is greater then the value we read from inverters webif
        // in this case we use our own stored value to avoid jumping KWHT backwards due to the missing decimal places 
        // of the value from the webif
        $StoredTotalKWH = (float) exec("cat ".$LAST_KWHTOTAL_FILE);
        if ($StoredTotalKWH > $$LastKWHT) {
          $$LastKWHT = $StoredTotalKWH;
        }
      }
      // After a few days of production we face the problem that our calculated KWHT-value shows a positive drift 
      // compared to the (real) stored KWHT-value in the inverter. This problem results from rounding problems by
      // the smaller number of decimal places of the value KWHT in the webif of the inverter. To solve this problem 
      // we need a correction factor wich allows us a slightly reduce of our calculated KWHT-value over a longer 
      // time range. So should the calculated KWHT-value gradually approach the real value stored in the inverter 
      // over this longer time range. 
      if (($TotalKWHStringWebIf) && ($$LastKWHT - (float) $TotalKWHStringWebIf > 0.1)) {
        // The positive drift is greater than 0.1, we should calculate a correction factor later.
        $KWHTDifference = $$LastKWHT - (float) $TotalKWHStringWebIf;
      }
    } else {
      // sometimes the values are not filled correctly by the webif, imho a bug in the webif of the inverter
      $RetryCounter++;
      if ($RetryCounter < $MaxRetryCount) {
        // wait a second and try again
        sleep (1);
      } else {
        // the inverter is alive but the webif is currently not delivering the correct values, so we use the last known power value
        $P = $$LastP;
        $Now = time();
        $Dt = $Now - $$LastPTS;
        $$LastPTS = $Now;
      }
    }
  } 
  if ($Dt && $P) {
    // total-KWHT value of this inverter has to be updated. 
    $NewKWHTDelta = $P * $Dt * ((1.0 / (60.0 * 60.0)) / 1000.0);
    if ($KWHTDifference > 0.1) {
      // The positive drift of KWHT is greater than 0.1, we shold calculate an correction factor.
      // Normally we have an average of 5 measurements per minute --> 300 per hour --> 3600 for twelve hours.
      // The goal should be that the drift is eliminated within a day. So we use 3600 as base for our correction 
      // target, nearly a day of solar-operation. On the other hand we don't want to see an intense sawtooth graph so 
      // we limit the correction factor to a maximum of 10 percent of $NewKWHTDelta. 
      $KWHTCorrectionTarget = $KWHTDifference / 3600.0;
      $KWHTCorrectionFactor = $NewKWHTDelta / 10.0;
      if ($KWHTCorrectionFactor > $KWHTCorrectionTarget) {
        // the correction factor does not need to be so high, so we limit it
        $KWHTCorrectionFactor = $KWHTCorrectionTarget;
      }
    }
    $$LastKWHT += ($NewKWHTDelta - $KWHTCorrectionFactor);
    // save the value in case we stop the webif and restart it again later. 
    file_put_contents("$LAST_KWHTOTAL_FILE", $$LastKWHT);    
  } 
} else {
  $ERR = "could not connect to ".${'ADR'.$invt_num};
  $$LastP = (float) 0;
  $$LastPTS = time();
}

if ($DEBUG) {
  if ($RetryCounter > 0) {
    if ($RetryCounter < $MaxRetryCount) {
       if ($RetryCounter == 1) {
         $RCText = "y";
       } else {
         $RCText = "ies";
       }
       file_put_contents("$LOGFILE", $SDTE.": ".$RetryCounter." retr".$RCText." needed to read the data from webif!\r\n", FILE_APPEND);
    } else {
       file_put_contents("$LOGFILE", $SDTE.": After ".$RetryCounter." retries data could not be read from webif, so last known power value is used!\r\n", FILE_APPEND);
    }  
  }
  if ($KWHTCorrectionFactor > 0) {
    file_put_contents("$LOGFILE", $SDTE.": Ongoing KWHT-correction, KWHTDifference=".$KWHTDifference." KWHTCorrectionFactor=".$KWHTCorrectionFactor."\r\n", FILE_APPEND);
  }
  file_put_contents("$LOGFILE", $SDTE.": P=".$P." P_LAST=".$$LastP." KWHTotal=".$$LastKWHT." NewKWHTDelta=".$NewKWHTDelta." Err=".$ERR."\r\n", FILE_APPEND);
}  

$INVT= 0; // temperature inverter fixed dummy
$BOOT = 0; // temperature dc/dc booster fixed dummy
$I1V = (float) 36; // udc fixed dummy
$I1P = (float) $P;
$I1A = (float) round($I1P / $I1V, 2);
$G1P= (float) $P; // P-AC
$G1V= (float) 230; // U-AC fixed dummy
$G1A = (float) round($G1P / $G1V, 2);
$FRQ= (float) 50; // freq  fixed dummy
$KWHT = $$LastKWHT; 

if ($ERR == "0") {
  $RET = 'OK';
} else {
  $RET = 'NOK';
}

?>

[dr-ni]

is this the original protocol?

where are the settings?

cannot find

mi600-no1-ip username1 password1
mi600-no2-ip username2 password2

[jeanmarc77]

Yeah that's your modified code

config/config_invt1.php will set as $ADR1 no1-ip and $COMOPTION1 username1 password1
config/config_invt2.php will set as $ADR2 no2-ip and $COMOPTION2 username2 password2

[dr-ni]

so do I have to add these files like this?

config/config_invt1.php

$ADR1="no1-ip";
$COMOPTION1="username1 password1";

...

[jeanmarc77]

of course not, juste use the interface it will create them

[dr-ni]

which interface?

[jeanmarc77]

gosh did you ever use 123s ? http://yourlogger/123solar/admin/

[dr-ni]

of course but is there something in the wiki about?

its still not clear how to setup multiple inverters

[jeanmarc77]

can't be more simple than that
123solar/admin/admin_main.php Number of inverter(s) 2
then
123solar/admin/admin_invt.php
Inverter #1 set IP adress 1 Communication options username1 password1
Inverter #2 set what you want

[dr-ni]

ahhhhh ok this is what was missing would be nice in the wiki, not everybody knows all details as you

[jeanmarc77]

Number of inverter(s) is the first thing to look at in Main configuration ;p