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Air-to-water heat pump interface · BACnet points list
Mitsubishi Electric Procon MelcoBEMS MINI (A1M+) - Air-To-Water (Ecodan) units BACnet points list
Updated 11 November 2026
Short answer
For air-to-water (Ecodan) systems the MelcoBEMS MINI (A1M+) serves a large object set on BACnet MS/TP or BACnet IP: system on/off, operating mode, DHW and zone setpoints, prohibit and forced-DHW commands, then many read-only analog inputs for temperatures, flow, heat pump frequencies, run hours, error codes, energy produced and consumed, and FTC configuration. Many status values are coded integers in analog inputs rather than binary or multistate objects.
This page lists 259 BACnet objects for the Mitsubishi Electric Procon MelcoBEMS MINI (A1M+) - Air-To-Water (Ecodan) units — 27 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Mitsubishi Electric’s own free documentation, linked below.
- Manufacturer
- Mitsubishi Electric
- Model
- Procon MelcoBEMS MINI (A1M+) - Air-To-Water (Ecodan) units
- Equipment
- Air-to-water heat pump interface
- Equipment type
- Heat pumps
- BACnet objects
- 259 (27 writable)
- Transport
- BACnet IP, BACnet MS/TP
- Firmware
- 4.1.1
- Also known as
- A1M+ ATW, MelcoBEMS MINI A1M PLUS Ecodan, Procon A1M+ Ecodan
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Reference only, provided as-is: verify against Mitsubishi Electric’s current documentation and the live device before use. Not official Mitsubishi Electric information. Terms of use.
BMS integration notes: Mitsubishi Electric Procon MelcoBEMS MINI (A1M+) - Air-To-Water (Ecodan) units
Integration in brief
Select BACnet with DIP switch 7, then write system on/off, the operating mode, DHW tank and zone setpoints, and read flow, return and tank temperatures plus the error objects.
Minimum points to map
The short list most integrators start with — enough to run the unit from a BMS. Map more as the job needs.
| Object | Name | Why | Access |
|---|---|---|---|
| BO 0 | ATW Drive OFF/ON Setup | System on/off command | Command |
| MO 1 | ATW Mode Setup | Operating mode command | Command |
| AV 5 | ATW Tank Setpoint Int | DHW tank setpoint | Command |
| AV 6 | ATW Zone1 HC Target Temperature Int | Zone 1 target temperature | Command |
| MO 3 | ATW Zone 1 Operation Mode AC | Zone 1 operation mode (room/flow/curve) | Command |
| AI 51 | ATW Flow Temperature Int | Flow temperature | Read |
| AI 52 | ATW Return Temperature Int | Return temperature | Read |
| AI 53 | ATW Water Temperature Int | Water (tank) temperature | Read |
| AI 29 | ATW Refrigerant Error Info | Refrigerant error state, 0 = normal | Read |
Enable & remote start
No separate enable; the Setup objects command the FTC directly. Prohibit objects (BO 11-15, AV 8) lock functions at the unit's remote controller.
Network setup
- DIP switch 7 OFF selects BACnet (MS/TP and BACnet IP); ON selects Modbus RTU.
- DIP switches 1-5 set the RS-485 node address 1-30 (all OFF = 1, all ON = set in software); it is the MS/TP station ID.
- DIP switch 6 ON fixes RS-485 at 9600 baud, no parity; OFF uses the software baud rate (MS/TP up to 76800).
- Default IP address 192.168.92.114; network settings are changed on the adapter's web page.
- Device instance, Max Master and Max Info Frames are set through Modbus holding registers 272-275.
Watch out for
- AV 8 (MRC prohibit) is bit-packed and the guide says it must not be written to Shizuoka-designed models.
- Zone 2 objects only apply to two-zone systems; slave and refrigerant-address objects only apply to cascaded systems.
Mitsubishi Electric Procon MelcoBEMS MINI (A1M+) - Air-To-Water (Ecodan) units BACnet objects
Type: AI, AO, AV, BI, BO, BV, MI/MO/MV (multi-state) · Access: Read read-only, Write writable, Command writable with a priority array.
Note: the source document has no read/write column, so access here is inferred from the object type (inputs read-only, values writable). Confirm on the live controller before writing.
| Description | States | |||||
|---|---|---|---|---|---|---|
| BOmin | 0 | ATW Drive OFF/ON Setup | Command | 0=System OFF, 1=System ON | ||
| MOmin | 1 | ATW Mode Setup | Command | 1=Stop, 2=Hot Water, 3=Heating, 4=Cooling, 5=No voltage contact input (hot water storage), 6=Freeze Stat, 7=Legionella, 8=Heating-Eco, 9=Mode 1, 10=Mode 2, 11=Mode 3, 12=No voltage contact input (heating up) | ||
| BO | 2 | ATW DHW Mode Setup | Command | 0=Normal, 1=Eco | ||
| MOmin | 3 | ATW Zone 1 Operation Mode AC | Command | 1=Heating Room Temp, 2=Heating Flow Temp, 3=Heating Heat Curve, 4=Cooling Room Temperature (not on 13K model), 5=Cooling Flow Temp, 6=Floor Dryup | ||
| MO | 4 | ATW Zone 2 Operation Mode AC | Command | 1=Heating Room Temp, 2=Heating Flow Temp, 3=Heating Heat Curve, 4=Cooling Room Temperature (not on 13K model), 5=Cooling Flow Temp, 6=Floor Dryup | ||
| AVmin | 5 | ATW Tank Setpoint Int | °C/°F | Command | ||
| AVmin | 6 | ATW Zone1 HC Target Temperature Int | °C/°F | Command | ||
| AV | 7 | ATW Zone2 HC Target Temperature Int | °C/°F | Command | ||
| AV | 8 | ATW MRC OperationProhibit | Bit packed value | Command | ||
| BO | 9 | ATW Forced DHW Setup | Command | 0=Normal, 1=Force DHW | ||
| BO | 10 | ATW Holiday Setup | Command | 0=Normal, 1=Holiday | ||
| BO | 11 | ATW DHW ON Prohibit Setup | Command | 0=On, 1=Prohibit | ||
| BO | 12 | ATW ZONE1 Heating ON Setup | Command | 0=On, 1=Prohibit | ||
| BO | 13 | ATW ZONE1 Cooling ON Setup | Command | 0=On, 1=Prohibit | ||
| BO | 14 | ATW ZONE2 Heating ON Setup | Command | 0=On, 1=Prohibit | ||
| BO | 15 | ATW ZONE2 Cooling ON Setup | Command | 0=On, 1=Prohibit | ||
| BO | 16 | ATW Capacity Mode Setup | Command | 0=COP priority, 1=Capacity priority | ||
| AV | 17 | ATW Capacity Control Ratio | 0-100 % | % | Command | |
| BO | 18 | ATW Fan Mode Setup | Command | 0=Ordinary, 1=Coercion | ||
| AV | 19 | ATW Current Hour | Command | |||
| AV | 20 | ATW Current Minute | Command | |||
| AV | 21 | ATW Outdoor Air Temperature Int | °C/°F | Command | ||
| AV | 22 | ATW Setting Water Temperature Int | °C/°F | Command | ||
| AV | 23 | ATW Therm Target Temperature Int - Zone 1 | °C/°F | Command | ||
| AV | 24 | ATW Therm Target Temperature Int - Zone 2 | °C/°F | Command | ||
| MO | 25 | ATW HC Control Type | Command | 1=Heating, 2=Cooling | ||
| AI | 26 | ATW Own Refrigerant Address | Read | |||
| AI | 27 | ATW Defrost | Read | 0=Normal, 1=Standby, 2=Defrost, 3=Waiting Restart | ||
| AI | 28 | ATW Residual Heat Removal | Read | 0=Normal, 1=Prepared, 2=Residual Heat Removal | ||
| AImin | 29 | ATW Refrigerant Error Info | Read | 0=Normal, 1=Error (System), 2=Error (Startup), 3=Maintenance Error | ||
| AI | 30 | ATW 7-Segment Display Error Code Digit 1 | Read | 0=A, 1=b, 2=E, 3=F, 4=J, 5=L, 6=P, 7=U | ||
| AI | 31 | ATW 7-Segment Display Error Code Digit 2 | 7-segment error code digit (code table in guide) | Read | ||
| AI | 32 | ATW Status Of Heating | Read | FTC4: 0=No type, 1=Heating C1, 2=Heating C2, 3=Heating C3; FTC5/6/7: 0=No type, 1=Heating/Cooling A1/B1/C1, 2=Heating/Cooling A2/B2/C2, 3=Heating/Cooling A3/B3/C3 | ||
| AI | 33 | ATW HeatPumpFreq Master | Hz | Read | ||
| AI | 34 | ATW HeatPumpFreq Slave1 | Hz | Read | ||
| AI | 35 | ATW HeatPumpFreq Slave2 | Hz | Read | ||
| AI | 36 | ATW HeatPumpFreq Slave3 | Hz | Read | ||
| AI | 37 | ATW HeatPumpFreq Slave4 | Hz | Read | ||
| AI | 38 | ATW HeatPumpFreq Slave5 | Hz | Read | ||
| AI | 39 | ATW HeatPumpFreq Slave6 | Hz | Read | ||
| AI | 40 | ATW Heat Source Status | Read | 0=H/P, 1=IH, 2=BH, 3=IH + BH, 4=Boiler | ||
| AI | 41 | ATW Zone1 Temperature Setpoint Int | °C/°F | Read | ||
| AI | 42 | ATW Zone2 Temperature Setpoint Int | °C/°F | Read | ||
| AI | 43 | ATW Zone1 Flow Temperature Setpoint Int | °C/°F | Read | ||
| AI | 44 | ATW Zone2 Flow Temperature Setpoint Int | °C/°F | Read | ||
| AI | 45 | ATW Legionella Temperature Setpoint Int | °C/°F | Read | ||
| AI | 46 | ATW Dhw Temperaturedrop Int | °C/°F | Read | ||
| AI | 47 | ATW Zone1roomtemperature Int | °C/°F | Read | ||
| AI | 48 | ATW Zone2roomtemperature Int | °C/°F | Read | ||
| AI | 49 | ATW Refrigerant Liquid Temperature Int | °C/°F | Read | ||
| AI | 50 | ATW Ambient Temperature Int | °C/°F | Read | ||
| AImin | 51 | ATW Flow Temperature Int | °C/°F | Read | ||
| AImin | 52 | ATW Return Temperature Int | °C/°F | Read | ||
| AImin | 53 | ATW Water Temperature Int | °C/°F | Read | ||
| AI | 54 | ATW Flow Temperature Zone1 Int | °C/°F | Read | ||
| AI | 55 | ATW Return Temperature Zone1 Int | °C/°F | Read | ||
| AI | 56 | ATW Flow Temperature Zone2 Int | °C/°F | Read | ||
| AI | 57 | ATW Return Temperature Zone2 Int | °C/°F | Read | ||
| AI | 58 | ATW Flow Temperature Boiler Int | °C/°F | Read | ||
| AI | 59 | ATW Return Temperature Boiler Int | °C/°F | Read | ||
| AI | 60 | ATW Roomthermo1 IN1 | Read | 0=OFF, 1=ON | ||
| AI | 61 | ATW Roomthermo2 IN6 | Read | 0=OFF, 1=ON | ||
| AI | 62 | ATW Flow SW1 IN2 | Read | 0=OFF, 1=ON | ||
| AI | 63 | ATW Flow SW2 IN3 | Read | 0=OFF, 1=ON | ||
| AI | 64 | ATW Flow SW3 IN7 | Read | 0=OFF, 1=ON | ||
| AI | 65 | ATW Demand IN4 | Read | 0=OFF, 1=ON | ||
| AI | 66 | ATW Outdoorthermo IN5 | Read | 0=OFF, 1=ON | ||
| AI | 67 | ATW DipSwitch SW2 | DIP switch SW2 bits | Read | ||
| AI | 68 | ATW Heatpump Master ONOFF | Read | 0=Stop, 1=Run | ||
| AI | 69 | ATW Heatpump Slave ONOFF 0 | Read | 0=Stop, 1=Run | ||
| AI | 70 | ATW Heatpump Slave ONOFF 1 | Read | 0=Stop, 1=Run | ||
| AI | 71 | ATW Heatpump Slave ONOFF 2 | Read | 0=Stop, 1=Run | ||
| AI | 72 | ATW Heatpump Slave ONOFF 3 | Read | 0=Stop, 1=Run | ||
| AI | 73 | ATW Heatpump Slave ONOFF 4 | Read | 0=Stop, 1=Run | ||
| AI | 74 | ATW Heatpump Slave ONOFF 5 | Read | 0=Stop, 1=Run | ||
| AI | 75 | ATW Heatpump Slave ONOFF 6 | Read | 0=Stop, 1=Run | ||
| AI | 76 | ATW Heatpump Slave ONOFF 7 | Read | 0=Stop, 1=Run | ||
| AI | 77 | ATW Heatpump Runtime Hours | h | Read | ||
| AI | 78 | ATW Heatpump Runtime Hours x100 | h | Read | ||
| AI | 79 | ATW Heatpump Refaddr1 Runtime Hours x100 | h | Read | ||
| AI | 80 | ATW Heatpump Refaddr2 Runtime Hours x100 | h | Read | ||
| AI | 81 | ATW Heatpump Refaddr3 Runtime Hours x100 | h | Read | ||
| AI | 82 | ATW Heatpump Refaddr4 Runtime Hours x100 | h | Read | ||
| AI | 83 | ATW Heatpump Refaddr5 Runtime Hours x100 | h | Read | ||
| AI | 84 | ATW Heatpump Refaddr6 Runtime Hours x100 | h | Read | ||
| AI | 85 | ATW Boiler ONOFF | Read | 0=Stop, 1=Run | ||
| AI | 86 | ATW Boosterheater1 ONOFF | Read | 0=Stop, 1=Run | ||
| AI | 87 | ATW Boosterheater2 ONOFF | Read | 0=Stop, 1=Run | ||
| AI | 88 | ATW Boosterheater2plus ONOFF | Read | 0=Stop, 1=Run | ||
| AI | 89 | ATW Immersionheater ONOFF | Read | 0=Stop, 1=Run | ||
| AI | 90 | ATW Waterpump1 ONOFF | Read | 0=Stop, 1=Run | ||
| AI | 91 | ATW Waterpump2 ONOFF | Read | 0=Stop, 1=Run | ||
| AI | 92 | ATW Waterpump3 ONOFF | Read | 0=Stop, 1=Run | ||
| AI | 93 | ATW 3wayvalve ONOFF | Read | 0=Stop, 1=Run | ||
| AI | 94 | ATW 2wayvalve2 ONOFF | Read | 0=Stop, 1=Run | ||
| AI | 95 | ATW Mixingvalvestep | Read | |||
| AI | 96 | ATW Ref1 Errcode Upper Digit | 7-segment error code digit (code table in guide) | Read | ||
| AI | 97 | ATW Ref1 Errcode Lower Digit | 7-segment error code digit (code table in guide) | Read | ||
| AI | 98 | ATW Ref2 Errcode Upper Digit | 7-segment error code digit (code table in guide) | Read | ||
| AI | 99 | ATW Ref2 Errcode Lower Digit | 7-segment error code digit (code table in guide) | Read | ||
| AI | 100 | ATW Ref3 Errcode Upper Digit | 7-segment error code digit (code table in guide) | Read | ||
| AI | 101 | ATW Ref3 Errcode Lower Digit | 7-segment error code digit (code table in guide) | Read | ||
| AI | 102 | ATW Ref4 Errcode Upper Digit | 7-segment error code digit (code table in guide) | Read | ||
| AI | 103 | ATW Ref4 Errcode Lower Digit | 7-segment error code digit (code table in guide) | Read | ||
| AI | 104 | ATW Ref5 Errcode Upper Digit | 7-segment error code digit (code table in guide) | Read | ||
| AI | 105 | ATW Ref5 Errcode Lower Digit | 7-segment error code digit (code table in guide) | Read | ||
| AI | 106 | ATW Ref6 Errcode Upper Digit | 7-segment error code digit (code table in guide) | Read | ||
| AI | 107 | ATW Ref6 Errcode Lower Digit | 7-segment error code digit (code table in guide) | Read | ||
| AI | 108 | ATW Heatpump Freq 0 | Hz | Read | ||
| AI | 109 | ATW Heatpump Freq 1 | Hz | Read | ||
| AI | 110 | ATW Heatpump Freq 2 | Hz | Read | ||
| AI | 111 | ATW Heatpump Freq 3 | Hz | Read | ||
| AI | 112 | ATW Heatpump Freq 4 | Hz | Read | ||
| AI | 113 | ATW Heatpump Freq 5 | Hz | Read | ||
| AI | 114 | ATW Heatpump Freq 6 | Hz | Read | ||
| AI | 115 | ATW Heatpump Freq 7 | Hz | Read | ||
| AI | 116 | ATW Heatpump Freq 8 | Hz | Read | ||
| AI | 117 | ATW Heatpump Operation 0 | Read | 0=Stop, 1=Run | ||
| AI | 118 | ATW Heatpump Operation 1 | Read | 0=Stop, 1=Run | ||
| AI | 119 | ATW Heatpump Operation 2 | Read | 0=Stop, 1=Run | ||
| AI | 120 | ATW Heatpump Operation 3 | Read | 0=Stop, 1=Run | ||
| AI | 121 | ATW Heatpump Operation 4 | Read | 0=Stop, 1=Run | ||
| AI | 122 | ATW Heatpump Operation 5 | Read | 0=Stop, 1=Run | ||
| AI | 123 | ATW Heatpump Operation 6 | Read | 0=Stop, 1=Run | ||
| AI | 124 | ATW Heatpump Operation 7 | Read | 0=Stop, 1=Run | ||
| AI | 125 | ATW Heatpump Operation 8 | Read | 0=Stop, 1=Run | ||
| AI | 126 | ATW Heatpump Operation 9 | Read | 0=Stop, 1=Run | ||
| AI | 127 | ATW Heatpump Operation 10 | Read | 0=Stop, 1=Run | ||
| AI | 128 | ATW Heatpump Operation 11 | Read | 0=Stop, 1=Run | ||
| AI | 129 | ATW Heatpump Operation 12 | Read | 0=Stop, 1=Run | ||
| AI | 130 | ATW Heatpump Operation 13 | Read | 0=Stop, 1=Run | ||
| AI | 131 | ATW Heatpump Operation 14 | Read | 0=Stop, 1=Run | ||
| AI | 132 | ATW Heatpump Operation 15 | Read | 0=Stop, 1=Run | ||
| AI | 133 | ATW Heatpump Operation 16 | Read | 0=Stop, 1=Run | ||
| AI | 134 | ATW Heatpump Operation 17 | Read | 0=Stop, 1=Run | ||
| AI | 135 | ATW Heatpump Operation 18 | Read | 0=Stop, 1=Run | ||
| AI | 136 | ATW Heatpump Operation 19 | Read | 0=Stop, 1=Run | ||
| AI | 137 | ATW Heatpump Operation 20 | Read | 0=Stop, 1=Run | ||
| AI | 138 | ATW Heatpump Operation 21 | Read | 0=Stop, 1=Run | ||
| AI | 139 | ATW Heatpump Operation 22 | Read | 0=Stop, 1=Run | ||
| AI | 140 | ATW Externalheater Operation | Read | 0=Stop, 1=Run | ||
| AI | 141 | ATW Waterpump Operation 0 | Read | 0=Stop, 1=Run | ||
| AI | 142 | ATW Waterpump Operation 1 | Read | 0=Stop, 1=Run | ||
| AI | 143 | ATW Waterpump Operation 2 | Read | 0=Stop, 1=Run | ||
| AI | 144 | ATW Waterpump Operation 3 | Read | 0=Stop, 1=Run | ||
| AI | 145 | ATW Waterpump Operation 4 | Read | 0=Stop, 1=Run | ||
| AI | 146 | ATW Waterpump Operation 5 | Read | 0=Stop, 1=Run | ||
| AI | 147 | ATW Waterpump Operation 6 | Read | 0=Stop, 1=Run | ||
| AI | 148 | ATW Waterpump Operation 7 | Read | 0=Stop, 1=Run | ||
| AI | 149 | ATW Waterpump Operation 8 | Read | 0=Stop, 1=Run | ||
| AI | 150 | ATW Waterpump Operation 9 | Read | 0=Stop, 1=Run | ||
| AI | 151 | ATW Waterpump Operation 10 | Read | 0=Stop, 1=Run | ||
| AI | 152 | ATW Waterpump Operation 11 | Read | 0=Stop, 1=Run | ||
| AI | 153 | ATW Waterpump Operation 12 | Read | 0=Stop, 1=Run | ||
| AI | 154 | ATW Drainpan Operation or Antifreeze piping heater operation ON/OFF | Read | 0=Stop, 1=Run | ||
| AI | 155 | ATW Evaporating Temperature Int | °C/°F | Read | ||
| AI | 156 | ATW Condensing Temperature Int | °C/°F | Read | ||
| AI | 157 | ATW Electric Energy 1 | Electric energy part 1 (0.01 kWh steps) | Read | ||
| AI | 158 | ATW Electric Energy 2 | Electric energy part 2 (0.01 kWh steps) | Read | ||
| AI | 159 | ATW Electric Energy 3 | Electric energy part 3 (0.01 kWh steps) | Read | ||
| AI | 160 | ATW Electric Energy 4 | Electric energy part 4 (0.01 kWh steps) | Read | ||
| AI | 161 | ATW Electric Energy 5 | Read | |||
| AI | 162 | ATW Electric Energy 6 | Read | |||
| AI | 163 | ATW Electric Energy 7 | Read | |||
| AI | 164 | ATW Electric Energy 8 | Read | |||
| AI | 165 | ATW Electric Energy 9 | Read | |||
| AI | 166 | ATW Electric Energy 10 | Read | |||
| AI | 167 | ATW Electric Energy 11 | Read | |||
| AI | 168 | ATW Electric Energy 12 | Read | |||
| AI | 169 | ATW Electric Energy 13 | Read | |||
| AI | 170 | ATW Electric Energy 14 | Read | |||
| AI | 171 | ATW Electric Energy 15 | Read | |||
| AI | 172 | ATW Electric Energy 16 | Read | |||
| AI | 173 | ATW Brine Inlet Temperature Int | °C/°F | Read | ||
| AI | 174 | ATW Brine Outlet Temp1 Int | °C/°F | Read | ||
| AI | 175 | ATW Brine Outlet Temp2 Int | °C/°F | Read | ||
| AI | 176 | ATW Condensing Temp2 Int | °C/°F | Read | ||
| AI | 177 | ATW Water Outlet Temp2 Int | °C/°F | Read | ||
| AI | 178 | ATW Evaporating Temp2 Int | °C/°F | Read | ||
| AI | 179 | ATW PWM Duty Of Waterpump1 | Duty value in % | Read | ||
| AI | 180 | ATW PWM Duty Feedback Waterpump1 | Duty value in % | Read | ||
| AI | 181 | ATW 3way Valve 1 | Read | 0=OFF (stop), 1=ON (run) | ||
| AI | 182 | ATW Protocol Version Upper | Version of Protocol is a value in BCD e.g | Read | ||
| AI | 183 | ATW Protocol Version Lower | Version of Protocol is a value in BCD e.g | Read | ||
| AI | 184 | ATW Model Version Upper | Version of Model is a value in BCD e.g | Read | ||
| AI | 185 | ATW Model Version Lower | Version of Model is a value in BCD e.g | Read | ||
| AI | 186 | ATW Capacity Of Supply Electricity | Value x0.1 W | Read | ||
| AI | 187 | ATW Model Profile 1 | Read | 0=FTC2B, 1=FTC4, 2=FTC5, 3=FTC6, 128=CAHV1A, 129=CAHV1B, 130=CRHV1A, 131=CRHV1B, 132=EAHV1A, 133=EAHV1B, 134=QAHV1A, 135=QAHV1B, 144=PWFY1 | ||
| AI | 188 | ATW Model Profile 2 | Read | |||
| AI | 189 | ATW EnergyConsumptionYear | Date of last energy consumption measurement – Year | Read | ||
| AI | 190 | ATW EnergyConsumptionMonth | Date of last energy consumption measurement – Month | Read | ||
| AI | 191 | ATW EnergyConsumptionDay | Date of last energy consumption measurement – Day | Read | ||
| AI | 192 | ATW EnergyConsumptionHeatingKwh | Last measured heating energy consumption - kWh part of the value | Read | ||
| AI | 193 | ATW EnergyConsumptionHeatingWh | Read | |||
| AI | 194 | ATW EnergyConsumptionCoolingKwh | Last measured cooling energy consumption - kWh part of the value | Read | ||
| AI | 195 | ATW EnergyConsumptionCoolingWh | Read | |||
| AI | 196 | ATW EnergyConsumptionDHWKwh | Last measured DHW energy consumption - kWh part of the value | Read | ||
| AI | 197 | ATW EnergyConsumptionDHWWh | Read | |||
| AI | 198 | ATW EnergyConsumptionTotalKwh | Read | |||
| AI | 199 | ATW EnergyProducedYear | Date of last energy produced measurement – Year | Read | ||
| AI | 200 | ATW EnergyProducedMonth | Date of last energy produced measurement – Month | Read | ||
| AI | 201 | ATW EnergyProducedDay | Date of last energy produced measurement – Day | Read | ||
| AI | 202 | ATW EnergyProducedHeatingKwh | Last measured heating energy produced - kWh part of the value | Read | ||
| AI | 203 | ATW EnergyProducedHeatingWh | Read | |||
| AI | 204 | ATW EnergyProducedCoolingKwh | Last measured cooling energy produced - kWh part of the value | Read | ||
| AI | 205 | ATW EnergyProducedCoolingWh | Read | |||
| AI | 206 | ATW EnergyProducedDHWKwh | Last measured DHW energy produced - kWh part of the value | Read | ||
| AI | 207 | ATW EnergyProducedDHWWh | Read | |||
| AI | 208 | ATW EnergyProducedTotalKwh | Last measured total energy produced in Kwh | Read | ||
| AI | 209 | ATW FlowRate 1 | L/min | Read | ||
| AI | 210 | ATW Date Year | Date(year) | Read | ||
| AI | 211 | ATW Date Month | Date(month) | Read | ||
| AI | 212 | ATW Date Day | Date(day) | Read | ||
| AI | 213 | ATW Time Hour | Time(hour) | Read | ||
| AI | 214 | ATW Time Min | Time(minute) | Read | ||
| AI | 215 | ATW Time Sec | Time(sec) | Read | ||
| AI | 216 | ATW Version Main SW | Version of Software | Read | ||
| AI | 217 | ATW Version Subcode | Sub-code Version of Software | Read | ||
| AI | 218 | ATW Demand Leg Prevention | Read | 0=Normal, 1=Legionella Prevention | ||
| AI | 219 | ATW Type Emergency Op | Read | 0=Normal, 1=Standby, 2=Backup | ||
| AI | 220 | ATW Zone1 Sensor Setting | Read | 0=Main RC, 1-8=RoomRC1-8, 15=TH1 | ||
| AI | 221 | ATW Zone2 Sensor Setting | Read | 0=Main RC, 1-8=RoomRC1-8, 15=TH1 | ||
| AI | 222 | ATW Freeze Stat Func Outdoor Unit | Read | 0=Normal, 1=Freeze stat | ||
| AI | 223 | ATW Boiler Protection | Read | 0=Normal, 1=Prepared, 2=Protected | ||
| AI | 224 | ATW Auto Restart PWR Failure | Read | 0=Normal, 1=Standby, 2=IT initial setting standby | ||
| AI | 225 | ATW Demand of Heater | Read | 0=No demand, 1=Run, 2=Prohibit | ||
| AI | 226 | ATW Type Heating Cooling | Read | 0=Type A, 1=Type B, 2=Type C | ||
| AI | 227 | ATW Zone1 HP Thermo Diff Adj Control | Read | 0=Normal, 1=discriminating, 2=adjustment ᵅ, 3=ᵝ, 4=ᵞ | ||
| AI | 228 | ATW Zone2 HP Thermo Diff Adj Control | Read | 0=Normal, 1=discriminating, 2=adjustment ᵅ, 3=ᵝ, 4=ᵞ | ||
| AI | 229 | ATW Slave Unit Connecting | Slave Unit Connection Status | Read | ||
| AI | 230 | ATW Slave Unit Operating Status | Slave Unit Operation Status | Read | ||
| AI | 231 | ATW HPFREQ4 Status | Hz | Read | ||
| AI | 232 | ATW Heatsource Phase DHW | Read | 0=Normal, 1=H/P Phase, 2=Heater Phase | ||
| AI | 233 | ATW Heatsource Type | Read | 0=Fixed, 1=Auto | ||
| AI | 234 | ATW Heatsource Judgement condition | Read | |||
| AI | 235 | ATW Boiler Operation Hybrid Settings | Read | 0=Ambient, 1=Cost, 2=CO2 | ||
| AI | 236 | ATW CP Boiler | CP boiler | Read | ||
| AI | 237 | ATW CO2 Boiler | CO2 boiler | Read | ||
| AI | 238 | ATW Energyprice Electricity | Energy Price Electricity | Read | ||
| AI | 239 | ATW OC Connection Error | OC Connection Error | Read | ||
| AI | 240 | ATW RC Connection Error | RC Connection Error | Read | ||
| AI | 241 | ATW Consumed Electric Power | Consumed electric power/energy | Read | ||
| AI | 242 | ATW Produced Power | Produced heat power/energy | Read | ||
| AI | 243 | ATW Calc Func Consumed Electrical Energy | Read | 0=no function, 1=with function | ||
| AI | 244 | ATW Calcfunc Produced Energy | Read | 0=no function, 1=with function | ||
| AI | 245 | ATW Heatingfunction OnOff | Read | 0=OFF (inactive), 1=ON (active) | ||
| AI | 246 | ATW Ext Outdoor AmbTemp | Read | 0=OFF, 1=ON | ||
| AI | 247 | ATW Mixtank Water Tempint | °C/°F | Read | ||
| AI | 248 | ATW Condensing Tempint | °C/°F | Read | ||
| AI | 249 | ATW Dipswitch SW1 | DipSW setting (SW1) lower byte | Read | ||
| AI | 250 | ATW Dipswitch SW3 | DipSW setting (SW3) lower byte | Read | ||
| AI | 251 | ATW Dipswitch SW4 | DipSW setting (SW4) lower byte | Read | ||
| AI | 252 | ATW Dipswitch SW5 | DipSW setting (SW5) lower byte | Read | ||
| AI | 253 | ATW Dipswitch SW6 | DipSW setting (SW6) lower byte | Read | ||
| AI | 254 | ATW Flow Rate 2 | L/min | Read | ||
| AI | 255 | ATW Waterpump4 OnOff | Read | 0=Stop, 1=Run | ||
| AI | 256 | ATW 2WayValve 2a OnOff | Read | 0=Stop, 1=Run | ||
| AI | 257 | ATW 2WayValve 2b OnOff | Read | 0=Stop, 1=Run | ||
| MO | 258 | Temperature Units | Command | 1=ºC, 2=ºF |
No points match these filters.
Object ID lookup: Mitsubishi Electric MelcoBEMS MINI Ecodan point IDs by name
BO0ATW Drive OFF/ON SetupMO1ATW Mode SetupBO2ATW DHW Mode SetupMO3ATW Zone 1 Operation Mode ACMO4ATW Zone 2 Operation Mode ACAV5ATW Tank Setpoint IntAV6ATW Zone1 HC Target Temperature IntAV7ATW Zone2 HC Target Temperature IntAV8ATW MRC OperationProhibitBO9ATW Forced DHW SetupBO10ATW Holiday SetupBO11ATW DHW ON Prohibit SetupBO12ATW ZONE1 Heating ON SetupBO13ATW ZONE1 Cooling ON SetupBO14ATW ZONE2 Heating ON SetupBO15ATW ZONE2 Cooling ON SetupBO16ATW Capacity Mode SetupAV17ATW Capacity Control RatioBO18ATW Fan Mode SetupAV19ATW Current HourAV20ATW Current MinuteAV21ATW Outdoor Air Temperature IntAV22ATW Setting Water Temperature IntAV23ATW Therm Target Temperature Int - Zone 1AV24ATW Therm Target Temperature Int - Zone 2MO25ATW HC Control TypeAI26ATW Own Refrigerant AddressAI27ATW DefrostAI28ATW Residual Heat RemovalAI29ATW Refrigerant Error InfoAI30ATW 7-Segment Display Error Code Digit 1AI31ATW 7-Segment Display Error Code Digit 2AI32ATW Status Of HeatingAI33ATW HeatPumpFreq MasterAI34ATW HeatPumpFreq Slave1AI35ATW HeatPumpFreq Slave2AI36ATW HeatPumpFreq Slave3AI37ATW HeatPumpFreq Slave4AI38ATW HeatPumpFreq Slave5AI39ATW HeatPumpFreq Slave6AI40ATW Heat Source StatusAI41ATW Zone1 Temperature Setpoint IntAI42ATW Zone2 Temperature Setpoint IntAI43ATW Zone1 Flow Temperature Setpoint IntAI44ATW Zone2 Flow Temperature Setpoint IntAI45ATW Legionella Temperature Setpoint IntAI46ATW Dhw Temperaturedrop IntAI47ATW Zone1roomtemperature IntAI48ATW Zone2roomtemperature IntAI49ATW Refrigerant Liquid Temperature IntAI50ATW Ambient Temperature IntAI51ATW Flow Temperature IntAI52ATW Return Temperature IntAI53ATW Water Temperature IntAI54ATW Flow Temperature Zone1 IntAI55ATW Return Temperature Zone1 IntAI56ATW Flow Temperature Zone2 IntAI57ATW Return Temperature Zone2 IntAI58ATW Flow Temperature Boiler IntAI59ATW Return Temperature Boiler IntAI60ATW Roomthermo1 IN1AI61ATW Roomthermo2 IN6AI62ATW Flow SW1 IN2AI63ATW Flow SW2 IN3AI64ATW Flow SW3 IN7AI65ATW Demand IN4AI66ATW Outdoorthermo IN5AI67ATW DipSwitch SW2AI68ATW Heatpump Master ONOFFAI69ATW Heatpump Slave ONOFF 0AI70ATW Heatpump Slave ONOFF 1AI71ATW Heatpump Slave ONOFF 2AI72ATW Heatpump Slave ONOFF 3AI73ATW Heatpump Slave ONOFF 4AI74ATW Heatpump Slave ONOFF 5AI75ATW Heatpump Slave ONOFF 6AI76ATW Heatpump Slave ONOFF 7AI77ATW Heatpump Runtime HoursAI78ATW Heatpump Runtime Hours x100AI79ATW Heatpump Refaddr1 Runtime Hours x100AI80ATW Heatpump Refaddr2 Runtime Hours x100AI81ATW Heatpump Refaddr3 Runtime Hours x100AI82ATW Heatpump Refaddr4 Runtime Hours x100AI83ATW Heatpump Refaddr5 Runtime Hours x100AI84ATW Heatpump Refaddr6 Runtime Hours x100AI85ATW Boiler ONOFFAI86ATW Boosterheater1 ONOFFAI87ATW Boosterheater2 ONOFFAI88ATW Boosterheater2plus ONOFFAI89ATW Immersionheater ONOFFAI90ATW Waterpump1 ONOFFAI91ATW Waterpump2 ONOFFAI92ATW Waterpump3 ONOFFAI93ATW 3wayvalve ONOFFAI94ATW 2wayvalve2 ONOFFAI95ATW MixingvalvestepAI96ATW Ref1 Errcode Upper DigitAI97ATW Ref1 Errcode Lower DigitAI98ATW Ref2 Errcode Upper DigitAI99ATW Ref2 Errcode Lower DigitAI100ATW Ref3 Errcode Upper DigitAI101ATW Ref3 Errcode Lower DigitAI102ATW Ref4 Errcode Upper DigitAI103ATW Ref4 Errcode Lower DigitAI104ATW Ref5 Errcode Upper DigitAI105ATW Ref5 Errcode Lower DigitAI106ATW Ref6 Errcode Upper DigitAI107ATW Ref6 Errcode Lower DigitAI108ATW Heatpump Freq 0AI109ATW Heatpump Freq 1AI110ATW Heatpump Freq 2AI111ATW Heatpump Freq 3AI112ATW Heatpump Freq 4AI113ATW Heatpump Freq 5AI114ATW Heatpump Freq 6AI115ATW Heatpump Freq 7AI116ATW Heatpump Freq 8AI117ATW Heatpump Operation 0AI118ATW Heatpump Operation 1AI119ATW Heatpump Operation 2AI120ATW Heatpump Operation 3AI121ATW Heatpump Operation 4AI122ATW Heatpump Operation 5AI123ATW Heatpump Operation 6AI124ATW Heatpump Operation 7AI125ATW Heatpump Operation 8AI126ATW Heatpump Operation 9AI127ATW Heatpump Operation 10AI128ATW Heatpump Operation 11AI129ATW Heatpump Operation 12AI130ATW Heatpump Operation 13AI131ATW Heatpump Operation 14AI132ATW Heatpump Operation 15AI133ATW Heatpump Operation 16AI134ATW Heatpump Operation 17AI135ATW Heatpump Operation 18AI136ATW Heatpump Operation 19AI137ATW Heatpump Operation 20AI138ATW Heatpump Operation 21AI139ATW Heatpump Operation 22AI140ATW Externalheater OperationAI141ATW Waterpump Operation 0AI142ATW Waterpump Operation 1AI143ATW Waterpump Operation 2AI144ATW Waterpump Operation 3AI145ATW Waterpump Operation 4AI146ATW Waterpump Operation 5AI147ATW Waterpump Operation 6AI148ATW Waterpump Operation 7AI149ATW Waterpump Operation 8AI150ATW Waterpump Operation 9AI151ATW Waterpump Operation 10AI152ATW Waterpump Operation 11AI153ATW Waterpump Operation 12AI154ATW Drainpan Operation or Antifreeze piping heater operation ON/OFFAI155ATW Evaporating Temperature IntAI156ATW Condensing Temperature IntAI157ATW Electric Energy 1AI158ATW Electric Energy 2AI159ATW Electric Energy 3AI160ATW Electric Energy 4AI161ATW Electric Energy 5AI162ATW Electric Energy 6AI163ATW Electric Energy 7AI164ATW Electric Energy 8AI165ATW Electric Energy 9AI166ATW Electric Energy 10AI167ATW Electric Energy 11AI168ATW Electric Energy 12AI169ATW Electric Energy 13AI170ATW Electric Energy 14AI171ATW Electric Energy 15AI172ATW Electric Energy 16AI173ATW Brine Inlet Temperature IntAI174ATW Brine Outlet Temp1 IntAI175ATW Brine Outlet Temp2 IntAI176ATW Condensing Temp2 IntAI177ATW Water Outlet Temp2 IntAI178ATW Evaporating Temp2 IntAI179ATW PWM Duty Of Waterpump1AI180ATW PWM Duty Feedback Waterpump1AI181ATW 3way Valve 1AI182ATW Protocol Version UpperAI183ATW Protocol Version LowerAI184ATW Model Version UpperAI185ATW Model Version LowerAI186ATW Capacity Of Supply ElectricityAI187ATW Model Profile 1AI188ATW Model Profile 2AI189ATW EnergyConsumptionYearAI190ATW EnergyConsumptionMonthAI191ATW EnergyConsumptionDayAI192ATW EnergyConsumptionHeatingKwhAI193ATW EnergyConsumptionHeatingWhAI194ATW EnergyConsumptionCoolingKwhAI195ATW EnergyConsumptionCoolingWhAI196ATW EnergyConsumptionDHWKwhAI197ATW EnergyConsumptionDHWWhAI198ATW EnergyConsumptionTotalKwhAI199ATW EnergyProducedYearAI200ATW EnergyProducedMonthAI201ATW EnergyProducedDayAI202ATW EnergyProducedHeatingKwhAI203ATW EnergyProducedHeatingWhAI204ATW EnergyProducedCoolingKwhAI205ATW EnergyProducedCoolingWhAI206ATW EnergyProducedDHWKwhAI207ATW EnergyProducedDHWWhAI208ATW EnergyProducedTotalKwhAI209ATW FlowRate 1AI210ATW Date YearAI211ATW Date MonthAI212ATW Date DayAI213ATW Time HourAI214ATW Time MinAI215ATW Time SecAI216ATW Version Main SWAI217ATW Version SubcodeAI218ATW Demand Leg PreventionAI219ATW Type Emergency OpAI220ATW Zone1 Sensor SettingAI221ATW Zone2 Sensor SettingAI222ATW Freeze Stat Func Outdoor UnitAI223ATW Boiler ProtectionAI224ATW Auto Restart PWR FailureAI225ATW Demand of HeaterAI226ATW Type Heating CoolingAI227ATW Zone1 HP Thermo Diff Adj ControlAI228ATW Zone2 HP Thermo Diff Adj ControlAI229ATW Slave Unit ConnectingAI230ATW Slave Unit Operating StatusAI231ATW HPFREQ4 StatusAI232ATW Heatsource Phase DHWAI233ATW Heatsource TypeAI234ATW Heatsource Judgement conditionAI235ATW Boiler Operation Hybrid SettingsAI236ATW CP BoilerAI237ATW CO2 BoilerAI238ATW Energyprice ElectricityAI239ATW OC Connection ErrorAI240ATW RC Connection ErrorAI241ATW Consumed Electric PowerAI242ATW Produced PowerAI243ATW Calc Func Consumed Electrical EnergyAI244ATW Calcfunc Produced EnergyAI245ATW Heatingfunction OnOffAI246ATW Ext Outdoor AmbTempAI247ATW Mixtank Water TempintAI248ATW Condensing TempintAI249ATW Dipswitch SW1AI250ATW Dipswitch SW3AI251ATW Dipswitch SW4AI252ATW Dipswitch SW5AI253ATW Dipswitch SW6AI254ATW Flow Rate 2AI255ATW Waterpump4 OnOffAI256ATW 2WayValve 2a OnOffAI257ATW 2WayValve 2b OnOffMO258Temperature Units
Integration notes
- Access is not printed per object; it follows the guide's property table (AV, BO and multistate outputs have a writable present value and priority array; inputs are read-only).
- The adapter detects the connected unit type and only serves the matching object list (Air-To-Air, Air-To-Water or Lossnay).
- Temperature objects read in °C or °F according to the Temperature Units multistate output.
- Several analog inputs carry coded values (0/1 flags, bit-packed DIP switch states, 7-segment error digits); the codes are in the states field where the guide lists them.
- Some temperatures are documented as value x10 (e.g. AV 21 outdoor air temperature).
Check it against the live device. A points list tells you what the controller can expose; the unit in front of you may differ by firmware or installed options. This list is provided as-is for reference only and may contain mistakes — confirming it before you write, map or commission anything is up to you (terms). Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the Procon MelcoBEMS MINI (A1M+) - Air-To-Water (Ecodan) units and exports what it actually has to Excel — free. New to BACnet? Start with what a BACnet points list is and what the object types mean.
Questions about the Mitsubishi Electric Procon MelcoBEMS MINI (A1M+) - Air-To-Water (Ecodan) units
How many BACnet points does the Mitsubishi Electric Procon MelcoBEMS MINI (A1M+) - Air-To-Water (Ecodan) units have?
This list has 259 BACnet objects: 232 analog inputs, 11 analog values, 11 binary outputs, 5 multi-state outputs. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Mitsubishi Electric Procon MelcoBEMS MINI (A1M+) - Air-To-Water (Ecodan) units BACnet points are writable?
27 of the 259 objects accept a write. Points marked Command have a priority array: a write holds until it is released, so release it back to automatic when you are done. The source has no read/write column, so this is inferred from object type.
Where is the official Mitsubishi Electric Procon MelcoBEMS MINI (A1M+) - Air-To-Water (Ecodan) units BACnet documentation?
The source is Procon MelcoBEMS MINI (A1M+) Installation Manual (manual 1.0.3, firmware 4.1.1), published free by Mitsubishi Electric at https://library.mitsubishielectric.co.uk/pdf/download_full/5538.
What are the minimum BACnet points to integrate the Mitsubishi Electric Procon MelcoBEMS MINI (A1M+) - Air-To-Water (Ecodan) units?
Start with BO 0 ATW Drive OFF/ON Setup (System on/off command); MO 1 ATW Mode Setup (Operating mode command); AV 5 ATW Tank Setpoint Int (DHW tank setpoint); AV 6 ATW Zone1 HC Target Temperature Int (Zone 1 target temperature); MO 3 ATW Zone 1 Operation Mode AC (Zone 1 operation mode (room/flow/curve)); AI 51 ATW Flow Temperature Int (Flow temperature); AI 52 ATW Return Temperature Int (Return temperature); AI 53 ATW Water Temperature Int (Water (tank) temperature); AI 29 ATW Refrigerant Error Info (Refrigerant error state, 0 = normal).
How do I enable BMS control of the Mitsubishi Electric Procon MelcoBEMS MINI (A1M+) - Air-To-Water (Ecodan) units?
No separate enable; the Setup objects command the FTC directly. Prohibit objects (BO 11-15, AV 8) lock functions at the unit's remote controller.
How do I check these points on the real Procon MelcoBEMS MINI (A1M+) - Air-To-Water (Ecodan) units?
Scan the network with a BACnet IP browser such as Easy BACnet, open the device and compare its object list with this table. Anything missing is usually an option that isn't installed or a point that is disabled in the controller's configuration.
More Mitsubishi Electric BACnet points lists
- VRF central controller with BACnet IP
Mitsubishi Electric AE-200J / AE-50J / EW-50J BACnet (Japan)
Japan-market CITY MULTI building air conditioning groups, Lossnay ventilators, DT-R, hot water heat pumps and brine coolers managed by an AE-200J, AE-50J or EW-50J.
Also known as: AE-200J, AE-50J, EW-50J, AE-200J BACnet, 三菱電機 AE-200J BACnet機能 - VRF central controller with BACnet IP
Mitsubishi Electric AE-C400 / EW-C50 BACnet (BACS-AP50)
CITY MULTI VRF indoor unit groups, Lossnay, OA processing units, Air To Water and chiller units managed by an AE-C400 or EW-C50.
Also known as: AE-C400, AE-C400E, EW-C50, EW-C50E, BACS-AP50, BACS-AP50E, AE-C/EW-C BACnet - VRF BACnet IP gateway
Mitsubishi Electric BAC-HD150 BM Adapter
CITY MULTI VRF indoor unit groups, Lossnay, and Air To Water (PWFY) units on M-NET, up to 50 groups.
Also known as: BAC-HD150, BAC-HD/150, BACHD150, BM ADAPTER, CMCN BACnet points list, MEAPP0002 - Variable frequency drive (inverter)
Mitsubishi Electric FR-E800 inverter (BACnet IP, Ethernet models)
Mitsubishi Electric FR-E800 compact inverters with the built-in Ethernet port (FR-E8xx-E and safety/IP67 Ethernet variants) set to BACnet/IP.
Also known as: FR-E800, FR-E800-E, FR-E820, FR-E840, FR-E860, IB-0600871ENG - Variable frequency drive (HVAC fan and pump)
Mitsubishi Electric FR-F800 inverter (BACnet MS/TP; FR-F800-E BACnet IP)
Mitsubishi Electric FR-F800 fan and pump inverters (FR-F820/F840/F842/F846) on the RS-485 terminals, and FR-F800-E models on the built-in Ethernet port.
Also known as: FR-F800, FR-F800-E, FR-F820, FR-F840, FR-F842, FR-F846, FR-F820-E, FR-F840-E, FR-F842-E, FR-F846-E, Mitsubishi FR-F800 BACnet, IB-0600547ENG, IB-0600628ENG - VRF BACnet IP interface (legacy)
Mitsubishi Electric PAC-YG31CDA BACnet Interface
CITY MULTI indoor unit groups managed by up to ten G-50A central controllers.
Also known as: PAC-YG31CDA, G-50A BACnet, BACnet Interface for G-50A - Split air conditioner BACnet IP gateway (legacy)
Mitsubishi Electric Procon BAC-A/50 (Mr. SLIM)
Mitsubishi Electric Mr. SLIM (A-control) split air conditioners, up to 50 outdoor units each fitted with a Sub I/F board.
Also known as: BAC-A/50, BACA50, Procon BAC A 50, RM2428 - VRF BACnet IP gateway (legacy)
Mitsubishi Electric Procon BAC-IP/50
CITY MULTI indoor units, Lossnay/OA units and heat-pump boilers connected to one G-50 central controller (up to 50 units).
Also known as: BAC-IP/50, BACIP50, Procon BAC IP 50 - Split / VRF indoor unit interface (single unit)
Mitsubishi Electric Procon MelcoBEMS MINI (A1M+) - Air-To-Air units
Mitsubishi Electric air-to-air split and indoor units connected one per adapter through the CN105 connector.
Also known as: A1M+, MelcoBEMS MINI A1M PLUS, MelcoBEMS MINI (A1M), Procon A1M - Energy recovery ventilator interface
Mitsubishi Electric Procon MelcoBEMS MINI (A1M+) - Lossnay units
Mitsubishi Electric Lossnay energy recovery ventilators supported by the A1M+ (listed in the manual appendix).
Also known as: A1M+ Lossnay, MelcoBEMS MINI A1M PLUS Lossnay - VRF central controller gateway
Mitsubishi Electric Procon MelcoBEMS2 (centralised controller BEMS gateway)
Mitsubishi Electric City Multi and split systems managed by an AE-C400/EW-C50, AE-200/EB50, AG-150A or GB-50ADA centralised controller (up to 50 groups).
Also known as: MelcoBEMS2, MelcoBEMS, Procon MelcoBEMS, MELCOBEMS
Source: Procon MelcoBEMS MINI (A1M+) Installation Manual (manual 1.0.3, firmware 4.1.1). Object names, instances and units are reproduced as published; descriptions are our own.