diff --git a/tools/esp8266/hmDefines.h b/tools/esp8266/hmDefines.h
index 383b6a98..04d148ce 100644
--- a/tools/esp8266/hmDefines.h
+++ b/tools/esp8266/hmDefines.h
@@ -17,14 +17,14 @@ union serial_u {
 
 
 // units
-enum {UNIT_V = 0, UNIT_A, UNIT_W,  UNIT_WH, UNIT_KWH, UNIT_HZ, UNIT_C, UNIT_VAR, UNIT_VA, UNIT_NONE};
+enum {UNIT_V = 0, UNIT_A, UNIT_W,  UNIT_WH, UNIT_KWH, UNIT_HZ, UNIT_C, UNIT_PCT, UNIT_VAR, UNIT_NONE};
 const char* const units[] = {"V", "A", "W", "Wh", "kWh", "Hz", "°C", "%","var",""};
 
 // field types
 enum {FLD_UDC = 0, FLD_IDC, FLD_PDC, FLD_YD, FLD_YW, FLD_YT,
         FLD_UAC, FLD_IAC, FLD_PAC, FLD_F, FLD_T, FLD_PF, FLD_EFF,
         FLD_IRR, FLD_Q,FLD_ALARM_MES_CNT,FLD_FW_VERSION,FLD_FW_BUILD_YEAR,
-        FLD_FW_BUILD_MONTH_DAY,FLD_HW_ID,FLD_ACT_PWR_LIMIT,FLD_LAST_ALARM_CODE};
+        FLD_FW_BUILD_MONTH_DAY,FLD_HW_ID,FLD_ACT_PWR_LIMIT,FLD_LAST_ALARM_CODE};        
         
 const char* const fields[] = {"U_DC", "I_DC", "P_DC", "YieldDay", "YieldWeek", "YieldTotal",
         "U_AC", "I_AC", "P_AC", "F_AC", "Temp", "PF_AC", "Efficiency", "Irradiation","Q_AC",
@@ -97,7 +97,7 @@ const byteAssign_t InfoAssignment[] = {
 #define HMINFO_LIST_LEN     (sizeof(InfoAssignment) / sizeof(byteAssign_t))
 
 const byteAssign_t SystemConfigParaAssignment[] = {
-    { FLD_ACT_PWR_LIMIT,           UNIT_VAR,   CH0,  2, 2, 10 }
+    { FLD_ACT_PWR_LIMIT,           UNIT_PCT,   CH0,  2, 2, 10 }
 };
 #define HMSYSTEM_LIST_LEN     (sizeof(SystemConfigParaAssignment) / sizeof(byteAssign_t))
 
@@ -122,11 +122,10 @@ const byteAssign_t hm1chAssignment[] = {
     { FLD_UAC, UNIT_V,   CH0, 14, 2, 10   },
     { FLD_IAC, UNIT_A,   CH0, 22, 2, 100  },
     { FLD_PAC, UNIT_W,   CH0, 18, 2, 10   },
-    { FLD_Q,   UNIT_VA,  CH0, 20, 2, 10   },
+    { FLD_Q, UNIT_VAR,  CH0, 20, 2, 10   },
     { FLD_F,   UNIT_HZ,  CH0, 16, 2, 100  },
-    { FLD_PF,  UNIT_NONE,CH0, 24, 2, 1000 },
     { FLD_T,   UNIT_C,   CH0, 26, 2, 10   },
-    { FLD_ALARM_MES_CNT,   UNIT_NONE,   CH0, 28, 2, 1 },
+    { FLD_ALARM_MES_CNT,   UNIT_NONE,   CH0, 24, 2, 1 },
     { FLD_YD,  UNIT_WH,  CH0, CALC_YD_CH0,  0, CMD_CALC },
     { FLD_YT,  UNIT_KWH, CH0, CALC_YT_CH0,  0, CMD_CALC },
     { FLD_PDC, UNIT_W,   CH0, CALC_PDC_CH0, 0, CMD_CALC },
@@ -156,16 +155,14 @@ const byteAssign_t hm2chAssignment[] = {
     { FLD_UAC, UNIT_V,   CH0, 26, 2, 10   },
     { FLD_IAC, UNIT_A,   CH0, 34, 2, 100  },
     { FLD_PAC, UNIT_W,   CH0, 30, 2, 10   },
-    { FLD_Q,   UNIT_VA,  CH0, 32, 2, 10   },
+    { FLD_Q, UNIT_VAR,  CH0, 32, 2, 10   },
     { FLD_F,   UNIT_HZ,  CH0, 28, 2, 100  },
-    { FLD_PF,  UNIT_NONE,CH0, 36, 2, 1000 },
     { FLD_T,   UNIT_C,   CH0, 38, 2, 10   },
     { FLD_ALARM_MES_CNT,   UNIT_NONE,   CH0, 40, 2, 1   },
     { FLD_YD,  UNIT_WH,  CH0, CALC_YD_CH0,  0, CMD_CALC },
     { FLD_YT,  UNIT_KWH, CH0, CALC_YT_CH0,  0, CMD_CALC },
     { FLD_PDC, UNIT_W,   CH0, CALC_PDC_CH0, 0, CMD_CALC },
     { FLD_EFF, UNIT_PCT, CH0, CALC_EFF_CH0, 0, CMD_CALC }
-
 };
 #define HM2CH_LIST_LEN     (sizeof(hm2chAssignment) / sizeof(byteAssign_t))
 
@@ -205,9 +202,9 @@ const byteAssign_t hm4chAssignment[] = {
     { FLD_UAC, UNIT_V,   CH0, 46, 2, 10   },
     { FLD_IAC, UNIT_A,   CH0, 54, 2, 100  },
     { FLD_PAC, UNIT_W,   CH0, 50, 2, 10   },
-    { FLD_Q,   UNIT_VA,  CH0, 52, 2, 10   },
+    { FLD_Q, UNIT_VAR,  CH0, 52, 2, 10   },
     { FLD_F,   UNIT_HZ,  CH0, 48, 2, 100  },
-    { FLD_PF,  UNIT_NONE,CH0, 56, 2, 1000   },
+    { FLD_PF, UNIT_PCT, CH0, 56, 2, 10   },
     { FLD_T,   UNIT_C,   CH0, 58, 2, 10   },
     { FLD_ALARM_MES_CNT,  UNIT_NONE,   CH0, 60, 2, 1   },
     { FLD_YD,  UNIT_WH,  CH0, CALC_YD_CH0,  0, CMD_CALC },
diff --git a/tools/esp8266/html/serial.html b/tools/esp8266/html/serial.html
index 933f5bdc..7498332e 100644
--- a/tools/esp8266/html/serial.html
+++ b/tools/esp8266/html/serial.html
@@ -114,6 +114,7 @@
                 var obj = new Object();
                 obj.cmd = 0;
                 obj.tx_request = 81;
+                obj.inverter = get_selected_iv();
                 getAjax("/api/ctrl", ctrlCb, "POST", JSON.stringify(obj));
             });
 
@@ -121,6 +122,7 @@
                 var obj = new Object();
                 obj.cmd = 1;
                 obj.tx_request = 81;
+                obj.inverter = get_selected_iv();
                 getAjax("/api/ctrl", ctrlCb, "POST", JSON.stringify(obj));
             });
 
@@ -129,6 +131,7 @@
                 obj.cmd = 11;
                 obj.tx_request = 81;
                 obj.payload = [10, 1];
+                obj.inverter = get_selected_iv();
                 getAjax("/api/ctrl", ctrlCb, "POST", JSON.stringify(obj));
             });
 
@@ -137,6 +140,7 @@
                 obj.cmd = 11;
                 obj.tx_request = 81;
                 obj.payload = [2000, 1];
+                obj.inverter = get_selected_iv();
                 getAjax("/api/ctrl", ctrlCb, "POST", JSON.stringify(obj));
             });