diff --git a/lib/Hoymiles/src/inverters/HMT_6CH.cpp b/lib/Hoymiles/src/inverters/HMT_6CH.cpp
index d640bdad5..757cf91de 100644
--- a/lib/Hoymiles/src/inverters/HMT_6CH.cpp
+++ b/lib/Hoymiles/src/inverters/HMT_6CH.cpp
@@ -57,7 +57,7 @@ static const byteAssign_t byteAssignment[] = {
     { TYPE_AC, CH0, FLD_F, UNIT_HZ, 80, 2, 100, false, 2 },
     { TYPE_AC, CH0, FLD_PAC, UNIT_W, 82, 2, 10, false, 1 },
     { TYPE_AC, CH0, FLD_Q, UNIT_VAR, 84, 2, 10, true, 1 },
-    { TYPE_AC, CH0, FLD_IAC, UNIT_A, 86, 2, 100, false, 2 }, // dummy
+    { TYPE_AC, CH0, FLD_IAC, UNIT_A, CALC_TOTAL_IAC, 0, CMD_CALC, false, 2 },
     { TYPE_AC, CH0, FLD_IAC_1, UNIT_A, 86, 2, 100, false, 2 },
     { TYPE_AC, CH0, FLD_IAC_2, UNIT_A, 88, 2, 100, false, 2 },
     { TYPE_AC, CH0, FLD_IAC_3, UNIT_A, 90, 2, 100, false, 2 },
diff --git a/lib/Hoymiles/src/parser/StatisticsParser.cpp b/lib/Hoymiles/src/parser/StatisticsParser.cpp
index e83834673..bd4056113 100644
--- a/lib/Hoymiles/src/parser/StatisticsParser.cpp
+++ b/lib/Hoymiles/src/parser/StatisticsParser.cpp
@@ -11,6 +11,7 @@ static float calcChUdc(StatisticsParser* iv, uint8_t arg0);
 static float calcTotalPowerDc(StatisticsParser* iv, uint8_t arg0);
 static float calcTotalEffiency(StatisticsParser* iv, uint8_t arg0);
 static float calcChIrradiation(StatisticsParser* iv, uint8_t arg0);
+static float calcTotalCurrentAc(StatisticsParser* iv, uint8_t arg0);
 
 using func_t = float(StatisticsParser*, uint8_t);
 
@@ -25,7 +26,8 @@ const calcFunc_t calcFunctions[] = {
     { CALC_CH_UDC, &calcChUdc },
     { CALC_TOTAL_PDC, &calcTotalPowerDc },
     { CALC_TOTAL_EFF, &calcTotalEffiency },
-    { CALC_CH_IRR, &calcChIrradiation }
+    { CALC_CH_IRR, &calcChIrradiation },
+    { CALC_TOTAL_IAC, &calcTotalCurrentAc }
 };
 
 const FieldId_t runtimeFields[] = {
@@ -446,3 +448,12 @@ static float calcChIrradiation(StatisticsParser* iv, uint8_t arg0)
     }
     return 0.0;
 }
+
+static float calcTotalCurrentAc(StatisticsParser* iv, uint8_t arg0)
+{
+    float acCurrent = 0;
+    acCurrent += iv->getChannelFieldValue(TYPE_AC, CH0, FLD_IAC_1);
+    acCurrent += iv->getChannelFieldValue(TYPE_AC, CH0, FLD_IAC_2);
+    acCurrent += iv->getChannelFieldValue(TYPE_AC, CH0, FLD_IAC_3);
+    return acCurrent;
+}
diff --git a/lib/Hoymiles/src/parser/StatisticsParser.h b/lib/Hoymiles/src/parser/StatisticsParser.h
index 586eebd90..90b9a5a9f 100644
--- a/lib/Hoymiles/src/parser/StatisticsParser.h
+++ b/lib/Hoymiles/src/parser/StatisticsParser.h
@@ -60,7 +60,8 @@ enum {
     CALC_CH_UDC,
     CALC_TOTAL_PDC,
     CALC_TOTAL_EFF,
-    CALC_CH_IRR
+    CALC_CH_IRR,
+    CALC_TOTAL_IAC
 };
 enum { CMD_CALC = 0xffff };