use battery cold signal instead of temperature for heat battery controller in Cerbo

NodeRed/NodeRedFiles/dbus-fzsonick-48tl/dbus-fzsonick-48tl.py

@@ -386,6 +386,11 @@ def init_signals(hardware_version, firmware_version, n_batteries):
     read_current = c.read_float(register=1000, scale_factor=0.01, offset=-10000, places=2)
     read_limb_bitmap = c.read_bitmap(1059)
 
+    def read_battery_cold(status):
+        return \
+            c.read_led_state(register=1004, led=LedColor.green)(status) >= LedState.blinking_slow and \
+            c.read_led_state(register=1004, led=LedColor.blue)(status) >= LedState.blinking_slow
+
     def read_power(status):
         return int(read_current(status) * read_voltage(status))
 
@@ -429,6 +434,7 @@ def init_signals(hardware_version, firmware_version, n_batteries):
         # Node Red related dbus paths
         Signal('/TimeToTOCRequest', max, c.read_float(register=1052)),
         Signal('/EOCReached', c.return_in_list, read_eoc_reached),
+        Signal('/BatteryCold',c.return_in_list, read_battery_cold),
         Signal('/NumOfLimbStrings', c.return_in_list, get_value=limp_strings_value),
         Signal('/NumOfBatteries', max, get_value=n_batteries),
         Signal('/Dc/0/Voltage', c.mean, get_value=read_voltage, get_text=c.append_unit('V')),
@@ -438,7 +444,7 @@ def init_signals(hardware_version, firmware_version, n_batteries):
         Signal('/Soc',              min, c.read_float(register=1053, scale_factor=0.1,  offset=0, places=1),    c.append_unit('%')),
         Signal('/LowestSoc',              min, c.read_float(register=1053, scale_factor=0.1,  offset=0, places=1),    c.append_unit('%')),
         Signal('/Dc/0/Temperature', c.mean, c.read_float(register=1003, scale_factor=0.1,  offset=-400, places=1), c.append_unit(u'°C')),
-        Signal('/Dc/0/LowestTemperature', min, c.read_float(register=1003, scale_factor=0.1,  offset=-400, places=1), c.append_unit(u'°C')),
+        
         # Charge/Discharge current, voltage and power
         Signal('/Info/MaxDischargeCurrent', c.ssum, max_discharge_current,c.append_unit('A')),
         Signal('/Info/MaxChargeCurrent',    c.ssum, max_charge_current, c.append_unit('A')),
@@ -454,8 +460,7 @@ def init_signals(hardware_version, firmware_version, n_batteries):
         Signal('/Connected', c.first, 1),
         Signal('/FirmwareVersion', c.return_in_list, firmware_version),
         Signal('/HardwareVersion', c.first, cfg.HARDWARE_VERSION, hardware_version),
-        # Diagnostics
+        Signal('/BmsVersion',   c.first, lambda s: s.battery.bms_version),
-        Signal('/Diagnostics/BmsVersion',   c.first, lambda s: s.battery.bms_version),
         # Warnings
         Signal('/WarningFlags/TaM1',    c.return_in_list, c.read_bool(register=1005, bit=1)),
         Signal('/WarningFlags/TbM1',    c.return_in_list, c.read_bool(register=1005, bit=4)),
@@ -504,18 +509,18 @@ def init_signals(hardware_version, firmware_version, n_batteries):
         Signal('/AlarmFlags/HEBT',   c.return_in_list, c.read_bool(register=1005, bit=46)),
         Signal('/AlarmFlags/CURM',   c.return_in_list, c.read_bool(register=1005, bit=48)),
         # LedStatus
-        Signal('/Diagnostics/LedStatus/Red',   c.first, c.read_led_state(register=1004, led=LedColor.red)),
+        Signal('/LedStatus/Red',   c.first, c.read_led_state(register=1004, led=LedColor.red)),
-        Signal('/Diagnostics/LedStatus/Blue',  c.first, c.read_led_state(register=1004, led=LedColor.blue)),
+        Signal('/LedStatus/Blue',  c.first, c.read_led_state(register=1004, led=LedColor.blue)),
-        Signal('/Diagnostics/LedStatus/Green', c.first, c.read_led_state(register=1004, led=LedColor.green)),
+        Signal('/LedStatus/Green', c.first, c.read_led_state(register=1004, led=LedColor.green)),
-        Signal('/Diagnostics/LedStatus/Amber', c.first, c.read_led_state(register=1004, led=LedColor.amber)),
+        Signal('/LedStatus/Amber', c.first, c.read_led_state(register=1004, led=LedColor.amber)),
         # IO Status
-        Signal('/Diagnostics/IoStatus/MainSwitchClosed', c.return_in_list, read_switch_closed),
+        Signal('/IoStatus/MainSwitchClosed', c.return_in_list, read_switch_closed),
-        Signal('/Diagnostics/IoStatus/AlarmOutActive', c.return_in_list, read_alarm_out_active),
+        Signal('/IoStatus/AlarmOutActive', c.return_in_list, read_alarm_out_active),
-        Signal('/Diagnostics/IoStatus/InternalFanActive', c.return_in_list, c.read_bool(register=1013, bit=2)),
+        Signal('/IoStatus/InternalFanActive', c.return_in_list, c.read_bool(register=1013, bit=2)),
-        Signal('/Diagnostics/IoStatus/VoltMeasurementAllowed', c.return_in_list, c.read_bool(register=1013, bit=3)),
+        Signal('/IoStatus/VoltMeasurementAllowed', c.return_in_list, c.read_bool(register=1013, bit=3)),
-        Signal('/Diagnostics/IoStatus/AuxRelay', c.return_in_list, read_aux_relay),
+        Signal('/IoStatus/AuxRelay', c.return_in_list, read_aux_relay),
-        Signal('/Diagnostics/IoStatus/RemoteState', c.return_in_list, c.read_bool(register=1013, bit=5)),
+        Signal('/IoStatus/RemoteState', c.return_in_list, c.read_bool(register=1013, bit=5)),
-        Signal('/Diagnostics/IoStatus/RiscOn', c.return_in_list, c.read_bool(register=1013, bit=6)),
+        Signal('/IoStatus/RiscOn', c.return_in_list, c.read_bool(register=1013, bit=6)),
     ]
 
 def init_modbus(tty):

NodeRed/NodeRedFiles/flows.json

@@ -1447,33 +1447,6 @@
             ]
         ]
     },
-    {
-        "id": "7630c78072545444",
-        "type": "change",
-        "z": "58aeeaac02a3a4c7",
-        "name": "lowest_battery_temperature",
-        "rules": [
-            {
-                "t": "set",
-                "p": "topic",
-                "pt": "msg",
-                "to": "lowest_battery_temperature",
-                "tot": "str"
-            }
-        ],
-        "action": "",
-        "property": "",
-        "from": "",
-        "to": "",
-        "reg": false,
-        "x": 640,
-        "y": 440,
-        "wires": [
-            [
-                "464455af5139ee7f"
-            ]
-        ]
-    },
     {
         "id": "b02c86727cdd38f1",
         "type": "victron-input-custom",
@@ -1601,31 +1574,6 @@
             ]
         ]
     },
-    {
-        "id": "005a521093d8c181",
-        "type": "victron-input-custom",
-        "z": "58aeeaac02a3a4c7",
-        "service": "com.victronenergy.battery/1",
-        "path": "/Dc/0/LowestTemperature",
-        "serviceObj": {
-            "service": "com.victronenergy.battery/1",
-            "name": "FZS 48TL200 x2 (1)"
-        },
-        "pathObj": {
-            "path": "/Dc/0/LowestTemperature",
-            "name": "/Dc/0/LowestTemperature",
-            "type": "number"
-        },
-        "name": "",
-        "onlyChanges": false,
-        "x": 220,
-        "y": 440,
-        "wires": [
-            [
-                "7630c78072545444"
-            ]
-        ]
-    },
     {
         "id": "49537ad0e4d9df8a",
         "type": "victron-output-custom",
@@ -1729,7 +1677,6 @@
         },
         "name": "",
         "onlyChanges": false,
-        "roundValues": "0",
         "x": 210,
         "y": 1320,
         "wires": [
@@ -1873,7 +1820,7 @@
         "type": "function",
         "z": "58aeeaac02a3a4c7",
         "name": "Battery Controller",
-        "func": "// get inverter num of phases\nif(msg.payload.num_phases == null){\n    num_phases = 10000000000;// mimic to make power setpoint be 0 when there is no inverter phase there \n}else{\n    num_phases = msg.payload.num_phases;\n}\n\n// get max charge power\nif(msg.payload.max_configured_charge_power == null ||msg.payload.max_configured_charge_power<0){\n    max_charge_power=msg.payload.max_battery_charge_power;\n}else{\n    max_charge_power=Math.min(msg.payload.max_configured_charge_power,msg.payload.max_battery_charge_power);\n}\n\n// get battery number\nif(msg.payload.num_batteries == null){\n    n_batteries = 0;\n}else{\n    n_batteries = msg.payload.num_batteries;\n}\n\n// get current battery power\nif(msg.payload.battery_power == null){\n    battery_power = 0;\n}else{\n    battery_power = msg.payload.battery_power;\n}\n\n// get current power setpoint\nif(msg.payload.L1_AcPowerSetpoint == null){\n    L1_AcPowerSetpoint = 0;\n}else{\n    L1_AcPowerSetpoint=msg.payload.L1_AcPowerSetpoint;\n}\n\nif(msg.payload.L2_AcPowerSetpoint == null){\n    L2_AcPowerSetpoint = 0;\n}else{\n    L2_AcPowerSetpoint=msg.payload.L2_AcPowerSetpoint;\n}\n\nif(msg.payload.L3_AcPowerSetpoint == null){\n    L3_AcPowerSetpoint = 0;\n}else{\n    L3_AcPowerSetpoint=msg.payload.L3_AcPowerSetpoint;\n}\n\ninverter_power_setpoint= L1_AcPowerSetpoint+L2_AcPowerSetpoint+L3_AcPowerSetpoint;\n\n// get AC Out whihc is critical loads\nif(msg.payload.L1_AC_Out == null ||msg.payload.L2_AC_Out == null || msg.payload.L3_AC_Out == null){\n    AC_out=0;\n}else{\n    AC_out = msg.payload.L1_AC_Out + msg.payload.L2_AC_Out+msg.payload.L3_AC_Out;\n}\n\n// get PV production\nif(msg.payload.PVs_Power == null){\n    PV_production = 0;\n}else{\n    PV_production = msg.payload.PVs_Power;\n}\n\n// cal calculated max inverter power based on limb strings<=1 and DC Bus voltage >=44V when discharging, further details in flow 3\nconfigured_max_inverter_power = num_phases*10000;//3000W for each phase\nmax_discharge_current_batteries = 15*(5*n_batteries-msg.payload.num_limb_string);\nDC_BUS_Voltage = msg.payload.DC_BUS_Voltage;\n\nif(44.1<DC_BUS_Voltage && DC_BUS_Voltage <=45){\n    max_discharge_current_batteries -=(45-DC_BUS_Voltage)*20*n_batteries;\n}\n\nif(DC_BUS_Voltage <=44.1){\n    max_discharge_current_batteries = 0;\n}\n   \nmax_discharge_power_inverter = Math.floor(msg.payload.DC_BUS_Voltage*max_discharge_current_batteries+PV_production);\ncal_max_inverter_discharge_power = Math.min(max_discharge_power_inverter,configured_max_inverter_power);\n\n// variables for hold_min_soc controller\nBatterySelfDischargePower=150;//W\nHoldSocZone=3;\nP_CONST = 0.2;\nsoc = msg.payload.lowest_soc;\nmin_soc = msg.payload.min_soc;\na=-2*BatterySelfDischargePower*n_batteries/HoldSocZone;\nb=-a*(min_soc+HoldSocZone);\ntarget_dc_power_to_hold_min_soc=soc*a+b;\n\n// set batterylife state\nbatterylife_state = msg.payload.batterylife_state;\nif(soc <= min_soc -5){\n    batterylife_state = 12;\n}else if(min_soc -5 < soc && soc < min_soc){\n    batterylife_state = 11;\n}else{\n    batterylife_state = 10;\n}\n\n// calibration charge\nif(global.get('start_calibration_charge_now_button','file') == true || global.get('start_calibration_charge_now','file')==1){\n    inverter_setpower = AC_out+max_charge_power;\n    msg.payload.inverter_setpower = Math.floor(inverter_setpower/num_phases);\n    msg.payload.max_inverter_discharge_power = PV_production;\n    msg.payload.ess_mode = 3;\n    msg.payload.batterylife_state = batterylife_state;\n    msg.payload.controller_info  = \"Calibration charge\";\n    return msg;\n}\n\ntest = target_dc_power_to_hold_min_soc;\nif(min_soc<=soc&&soc<=min_soc+HoldSocZone){// hold min SOC controller\n    inverter_setpower = inverter_power_setpoint+P_CONST*target_dc_power_to_hold_min_soc;\n    max_inverter_discharge_power = PV_production;\n    ess_mode =1;\n    controller_info = \"Hold min SOC\";\n}else if(soc<min_soc){// charge to min SOC controller\n    inverter_setpower = AC_out+max_charge_power;\n    max_inverter_discharge_power = PV_production;\n    ess_mode =3;\n    controller_info = \"Charge to min SOC\";\n}else if(msg.payload.lowest_battery_temperature<250){ // heat battery controller\n    inverter_setpower = AC_out+max_charge_power;\n    max_inverter_discharge_power = PV_production;\n    ess_mode =3;\n    controller_info = \"Heat Battery\";\n}else{// ESS self-consumption controller\n    inverter_setpower = inverter_power_setpoint;\n    max_inverter_discharge_power = cal_max_inverter_discharge_power;\n    ess_mode =1;\n    controller_info = \"ESS self-consumption\";\n}\n\npowerperphase = Math.floor(inverter_setpower/num_phases);\n\nmsg.payload.inverter_setpower = powerperphase;\nmsg.payload.ess_mode = ess_mode;\nmsg.payload.controller_info  = controller_info;\nmsg.payload.max_inverter_discharge_power = max_inverter_discharge_power;\nmsg.payload.batterylife_state = batterylife_state;\nmsg.payload.test = test;\n\nreturn msg;",
+        "func": "// get inverter num of phases\nif(msg.payload.num_phases == null){\n    num_phases = 10000000000;// mimic to make power setpoint be 0 when there is no inverter phase there \n}else{\n    num_phases = msg.payload.num_phases;\n}\n\n// get max charge power\nif(msg.payload.max_configured_charge_power == null ||msg.payload.max_configured_charge_power<0){\n    max_charge_power=msg.payload.max_battery_charge_power;\n}else{\n    max_charge_power=Math.min(msg.payload.max_configured_charge_power,msg.payload.max_battery_charge_power);\n}\n\n// get battery number\nif(msg.payload.num_batteries == null){\n    n_batteries = 0;\n}else{\n    n_batteries = msg.payload.num_batteries;\n}\n\n// get current battery power\nif(msg.payload.battery_power == null){\n    battery_power = 0;\n}else{\n    battery_power = msg.payload.battery_power;\n}\n\n// get current power setpoint\nif(msg.payload.L1_AcPowerSetpoint == null){\n    L1_AcPowerSetpoint = 0;\n}else{\n    L1_AcPowerSetpoint=msg.payload.L1_AcPowerSetpoint;\n}\n\nif(msg.payload.L2_AcPowerSetpoint == null){\n    L2_AcPowerSetpoint = 0;\n}else{\n    L2_AcPowerSetpoint=msg.payload.L2_AcPowerSetpoint;\n}\n\nif(msg.payload.L3_AcPowerSetpoint == null){\n    L3_AcPowerSetpoint = 0;\n}else{\n    L3_AcPowerSetpoint=msg.payload.L3_AcPowerSetpoint;\n}\n\ninverter_power_setpoint= L1_AcPowerSetpoint+L2_AcPowerSetpoint+L3_AcPowerSetpoint;\n\n// get AC Out whihc is critical loads\nif(msg.payload.L1_AC_Out == null ||msg.payload.L2_AC_Out == null || msg.payload.L3_AC_Out == null){\n    AC_out=0;\n}else{\n    AC_out = msg.payload.L1_AC_Out + msg.payload.L2_AC_Out+msg.payload.L3_AC_Out;\n}\n\n// get PV production\nif(msg.payload.PVs_Power == null){\n    PV_production = 0;\n}else{\n    PV_production = msg.payload.PVs_Power;\n}\n\n// cal calculated max inverter power based on limb strings<=1 and DC Bus voltage >=44V when discharging, further details in flow 3\nconfigured_max_inverter_power = num_phases*10000;//3000W for each phase\nmax_discharge_current_batteries = 15*(5*n_batteries-msg.payload.num_limb_string);\nDC_BUS_Voltage = msg.payload.DC_BUS_Voltage;\n\nif(44.1<DC_BUS_Voltage && DC_BUS_Voltage <=45){\n    max_discharge_current_batteries -=(45-DC_BUS_Voltage)*20*n_batteries;\n}\n\nif(DC_BUS_Voltage <=44.1){\n    max_discharge_current_batteries = 0;\n}\n   \nmax_discharge_power_inverter = Math.floor(msg.payload.DC_BUS_Voltage*max_discharge_current_batteries+PV_production);\ncal_max_inverter_discharge_power = Math.min(max_discharge_power_inverter,configured_max_inverter_power);\n\n// variables for hold_min_soc controller\nBatterySelfDischargePower=150;//W\nHoldSocZone=3;\nP_CONST = 0.2;\nsoc = msg.payload.lowest_soc;\nmin_soc = msg.payload.min_soc;\na=-2*BatterySelfDischargePower*n_batteries/HoldSocZone;\nb=-a*(min_soc+HoldSocZone);\ntarget_dc_power_to_hold_min_soc=soc*a+b;\n\n// set batterylife state\nbatterylife_state = msg.payload.batterylife_state;\nif(soc <= min_soc -5){\n    batterylife_state = 12;\n}else if(min_soc -5 < soc && soc < min_soc){\n    batterylife_state = 11;\n}else{\n    batterylife_state = 10;\n}\n\n// calibration charge\nif(global.get('start_calibration_charge_now_button','file') == true || global.get('start_calibration_charge_now','file')==1){\n    inverter_setpower = AC_out+max_charge_power;\n    msg.payload.inverter_setpower = Math.floor(inverter_setpower/num_phases);\n    msg.payload.max_inverter_discharge_power = PV_production;\n    msg.payload.ess_mode = 3;\n    msg.payload.batterylife_state = batterylife_state;\n    msg.payload.controller_info  = \"Calibration charge\";\n    return msg;\n}\n\ntest = target_dc_power_to_hold_min_soc;\nif(min_soc<=soc&&soc<=min_soc+HoldSocZone){// hold min SOC controller\n    inverter_setpower = inverter_power_setpoint+P_CONST*target_dc_power_to_hold_min_soc;\n    max_inverter_discharge_power = PV_production;\n    ess_mode =1;\n    controller_info = \"Hold min SOC\";\n}else if(soc<min_soc){// charge to min SOC controller\n    inverter_setpower = AC_out+max_charge_power;\n    max_inverter_discharge_power = PV_production;\n    ess_mode =3;\n    controller_info = \"Charge to min SOC\";\n}else if(msg.payload.BatteryCold.some(value => value === true)){ // heat battery controller\n    inverter_setpower = AC_out+max_charge_power;\n    max_inverter_discharge_power = PV_production;\n    ess_mode =3;\n    controller_info = \"Heat Battery\";\n}else{// ESS self-consumption controller\n    inverter_setpower = inverter_power_setpoint;\n    max_inverter_discharge_power = cal_max_inverter_discharge_power;\n    ess_mode =1;\n    controller_info = \"ESS self-consumption\";\n}\n\npowerperphase = Math.floor(inverter_setpower/num_phases);\n\nmsg.payload.inverter_setpower = powerperphase;\nmsg.payload.ess_mode = ess_mode;\nmsg.payload.controller_info  = controller_info;\nmsg.payload.max_inverter_discharge_power = max_inverter_discharge_power;\nmsg.payload.batterylife_state = batterylife_state;\nmsg.payload.test = test;\n\nreturn msg;",
         "outputs": 1,
         "timeout": 0,
         "noerr": 0,
@@ -1888,9 +1835,9 @@
                 "b4b77872b62e2859",
                 "8575f4390d7502bb",
                 "2066c1a0f48b4e2c",
+                "e121ac014fa242c5",
                 "52f0fa857f1d3a3c",
-                "283f5123601abd28",
+                "283f5123601abd28"
-                "e121ac014fa242c5"
             ]
         ]
     },
@@ -2294,7 +2241,7 @@
             ],
             [
                 "bcfea00921e46714",
-                "664a018fc9f6bbc6"
+                "ae0a6a009c8b9781"
             ]
         ]
     },
@@ -2329,7 +2276,7 @@
         "id": "bcfea00921e46714",
         "type": "debug",
         "z": "58aeeaac02a3a4c7",
-        "name": "Main Switch is on or there are >=2 limb strings",
+        "name": " >=2 limb strings",
         "active": false,
         "tosidebar": true,
         "console": false,
@@ -2338,7 +2285,7 @@
         "targetType": "msg",
         "statusVal": "payload",
         "statusType": "auto",
-        "x": 2120,
+        "x": 2020,
         "y": 540,
         "wires": []
     },
@@ -2431,7 +2378,7 @@
         "path": "/Ac/NumberOfPhases",
         "serviceObj": {
             "service": "com.victronenergy.vebus/276",
-            "name": "MultiPlus-II 48/3000/35-32"
+            "name": "MultiGrid 48/3000/35-50"
         },
         "pathObj": {
             "path": "/Ac/NumberOfPhases",
@@ -2440,7 +2387,7 @@
         },
         "name": "",
         "onlyChanges": false,
-        "x": 200,
+        "x": 190,
         "y": 1560,
         "wires": [
             [
@@ -2473,7 +2420,7 @@
         "path": "/Dc/0/Voltage",
         "serviceObj": {
             "service": "com.victronenergy.vebus/276",
-            "name": "MultiPlus-II 48/3000/35-32"
+            "name": "MultiGrid 48/3000/35-50"
         },
         "pathObj": {
             "path": "/Dc/0/Voltage",
@@ -2483,7 +2430,7 @@
         "name": "",
         "onlyChanges": false,
         "roundValues": "0",
-        "x": 220,
+        "x": 210,
         "y": 660,
         "wires": [
             [
@@ -2499,7 +2446,7 @@
         "path": "/Hub4/L1/AcPowerSetpoint",
         "serviceObj": {
             "service": "com.victronenergy.vebus/276",
-            "name": "MultiPlus-II 48/3000/35-32"
+            "name": "MultiGrid 48/3000/35-50"
         },
         "pathObj": {
             "path": "/Hub4/L1/AcPowerSetpoint",
@@ -2508,7 +2455,7 @@
         },
         "name": "",
         "onlyChanges": false,
-        "x": 240,
+        "x": 230,
         "y": 760,
         "wires": [
             [
@@ -2524,7 +2471,7 @@
         "path": "/Hub4/L2/AcPowerSetpoint",
         "serviceObj": {
             "service": "com.victronenergy.vebus/276",
-            "name": "MultiPlus-II 48/3000/35-32"
+            "name": "MultiGrid 48/3000/35-50"
         },
         "pathObj": {
             "path": "/Hub4/L2/AcPowerSetpoint",
@@ -2533,7 +2480,7 @@
         },
         "name": "",
         "onlyChanges": false,
-        "x": 240,
+        "x": 230,
         "y": 840,
         "wires": [
             [
@@ -2549,7 +2496,7 @@
         "path": "/Hub4/L3/AcPowerSetpoint",
         "serviceObj": {
             "service": "com.victronenergy.vebus/276",
-            "name": "MultiPlus-II 48/3000/35-32"
+            "name": "MultiGrid 48/3000/35-50"
         },
         "pathObj": {
             "path": "/Hub4/L3/AcPowerSetpoint",
@@ -2558,7 +2505,7 @@
         },
         "name": "",
         "onlyChanges": false,
-        "x": 240,
+        "x": 230,
         "y": 920,
         "wires": [
             [
@@ -2574,7 +2521,7 @@
         "path": "/Hub4/L3/AcPowerSetpoint",
         "serviceObj": {
             "service": "com.victronenergy.vebus/276",
-            "name": "MultiPlus-II 48/3000/35-32"
+            "name": "MultiGrid 48/3000/35-50"
         },
         "pathObj": {
             "path": "/Hub4/L3/AcPowerSetpoint",
@@ -2584,7 +2531,7 @@
         },
         "name": "",
         "onlyChanges": false,
-        "x": 3100,
+        "x": 3090,
         "y": 460,
         "wires": []
     },
@@ -2596,7 +2543,7 @@
         "path": "/Hub4/L2/AcPowerSetpoint",
         "serviceObj": {
             "service": "com.victronenergy.vebus/276",
-            "name": "MultiPlus-II 48/3000/35-32"
+            "name": "MultiGrid 48/3000/35-50"
         },
         "pathObj": {
             "path": "/Hub4/L2/AcPowerSetpoint",
@@ -2606,7 +2553,7 @@
         },
         "name": "",
         "onlyChanges": false,
-        "x": 3100,
+        "x": 3090,
         "y": 400,
         "wires": []
     },
@@ -2618,7 +2565,7 @@
         "path": "/Hub4/L1/AcPowerSetpoint",
         "serviceObj": {
             "service": "com.victronenergy.vebus/276",
-            "name": "MultiPlus-II 48/3000/35-32"
+            "name": "MultiGrid 48/3000/35-50"
         },
         "pathObj": {
             "path": "/Hub4/L1/AcPowerSetpoint",
@@ -2628,7 +2575,7 @@
         },
         "name": "",
         "onlyChanges": false,
-        "x": 3100,
+        "x": 3090,
         "y": 340,
         "wires": []
     },
@@ -2650,7 +2597,7 @@
         "wires": []
     },
     {
-        "id": "664a018fc9f6bbc6",
+        "id": "ae0a6a009c8b9781",
         "type": "change",
         "z": "58aeeaac02a3a4c7",
         "name": "Please replace battery first!",
@@ -2676,6 +2623,78 @@
             ]
         ]
     },
+    {
+        "id": "53bdfc638f96e640",
+        "type": "victron-input-custom",
+        "z": "58aeeaac02a3a4c7",
+        "service": "com.victronenergy.battery/1",
+        "path": "/BatteryCold",
+        "serviceObj": {
+            "service": "com.victronenergy.battery/1",
+            "name": "FZS 48TL200 x2 (1)"
+        },
+        "pathObj": {
+            "path": "/BatteryCold",
+            "name": "/BatteryCold",
+            "type": "object"
+        },
+        "name": "",
+        "onlyChanges": false,
+        "x": 180,
+        "y": 440,
+        "wires": [
+            [
+                "4c26a8ddb2e1881c"
+            ]
+        ]
+    },
+    {
+        "id": "4c26a8ddb2e1881c",
+        "type": "function",
+        "z": "58aeeaac02a3a4c7",
+        "name": "Parse BatteryCold list",
+        "func": "BatteryCold_list = [];\n\nBatteryCold = msg.payload;\n\n//equals to the number of battery\nn=BatteryCold.length;\n\nfor (i = 0; i < n; i++) {\n    BatteryCold_list.push(BatteryCold[i][1][0]);\n}\n\nmsg.payload = BatteryCold_list;\nreturn msg;",
+        "outputs": 1,
+        "timeout": 0,
+        "noerr": 0,
+        "initialize": "",
+        "finalize": "",
+        "libs": [],
+        "x": 480,
+        "y": 440,
+        "wires": [
+            [
+                "0f50a64d808a5b06"
+            ]
+        ]
+    },
+    {
+        "id": "0f50a64d808a5b06",
+        "type": "change",
+        "z": "58aeeaac02a3a4c7",
+        "name": "BatteryCold",
+        "rules": [
+            {
+                "t": "set",
+                "p": "topic",
+                "pt": "msg",
+                "to": "BatteryCold",
+                "tot": "str"
+            }
+        ],
+        "action": "",
+        "property": "",
+        "from": "",
+        "to": "",
+        "reg": false,
+        "x": 690,
+        "y": 440,
+        "wires": [
+            [
+                "464455af5139ee7f"
+            ]
+        ]
+    },
     {
         "id": "bf31818b5561403e",
         "type": "comment",