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Water heater controller via ProtoNode gateway · BACnet points list
AERCO ECS and SmartPlate water heaters (ProtoNode RER) BACnet points list
Updated 28 October 2026
The AERCO ProtoNode RER profile for four ECS/SmartPlate systems serves 7 analog values per heater on BACnet IP or BACnet MS/TP: control output, setpoint in use, a writable remote setpoint, outlet and feedback temperatures, an alarm bit field and flow rate.
This page lists 28 BACnet objects for the AERCO ECS and SmartPlate water heaters (ProtoNode RER) — 4 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from AERCO’s own free documentation, linked below.
- Manufacturer
- AERCO
- Model
- ECS and SmartPlate water heaters (ProtoNode RER)
- Equipment
- Water heater controller via ProtoNode gateway
- Equipment type
- Boilers & water heaters
- BACnet objects
- 28 (4 writable)
- Transport
- BACnet IP, BACnet MS/TP
- Firmware
- Not stated
- Default device instance
- Node_Offset + A-bank DIP switch value (MAC); the manual's example uses Node_Offset 50,000
- Also known as
- ECS, Electronic Control System, SmartPlate, SmartPlate water heater, E Valve, ProtoNode RER, 64084, GF-129, OMM-0080
BMS integration notes: AERCO ECS and SmartPlate water heaters (ProtoNode RER)
Set S2 On (S0, S1, S3, A1 Off) for the BACnet profile with 4 ECS/SP systems, give the heaters addresses 29-32, and for remote setpoint set Rmt = SP and L-r = rmt on each heater. Then write 03-RmSetpt and read outlet temperature, control output and the alarm bit field.
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 |
|---|---|---|---|
| AV 81 | 03-RmSetpt | Heater 1 remote setpoint, 40-180 °F | Write |
| AV 80 | 02-Setpoint | Heater 1 setpoint in use, °F | Read |
| AV 84 | 04-Outlet Temp | Heater 1 outlet temperature, °F | Read |
| AV 11 | 01-Cntl Output Signal | Heater 1 control output, % | Read |
| AV 86 | 06-Over Temp Alarm | Heater 1 alarm bits; bit 0-3 = alarm 1-4 | Read |
Enable & remote start
For remote setpoint control set Rmt = SP and L-r = rmt on the heater, then write its 03-RmSetpt. There is no start/stop object.
Network setup
- S2 On, S0/S1/S3 Off, A1 Off = BACnet IP / MS/TP profile with 4 ECS/SP systems.
- Device instance = Node_Offset (set in the Web Configurator) + A-bank DIP value; MS/TP MAC is 1-127 on A0-A7, baud on B0-B3.
- Default IP 192.168.1.24; change it in the ProtoNode web GUI.
- Modbus side: every AERCO unit at 9600 baud, 8 data bits, 1 stop bit, no parity.
- ECS/SmartPlate controller address (Addr) 29-32.
Watch out for
- Heater object IDs are scattered (heater 1 setpoint is AV 80-81, heater 2 is AV 3-4); use the table, not a pattern.
AERCO ECS and SmartPlate water heaters (ProtoNode RER) 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.
| Description | States | |||||
|---|---|---|---|---|---|---|
| AVmin | 11 | 01-Cntl Output Signal | Heater 1: control output signal (0-100) | % | Read | |
| AVmin | 80 | 02-Setpoint | Heater 1: setpoint in use (40-180) | °F | Read | |
| AVmin | 81 | 03-RmSetpt | Heater 1: remote setpoint written over the network (40-180) | °F | Write | |
| AVmin | 84 | 04-Outlet Temp | Heater 1: outlet temperature (40-205) | °F | Read | |
| AV | 1 | 05-FBk Sensor Temp | Heater 1: feedback sensor temperature (40-180) | °F | Read | |
| AVmin | 86 | 06-Over Temp Alarm | Heater 1: alarm bit field (alarms 1-4, manual, sensor/loop break, heater fail) | Read | Bit 0-3=Alarm 1-4 (1=alarm), Bit 4=Manual mode, Bit 5=Sensor break, Bit 6=Loop break, Bit 7=Heater fail | |
| AV | 2 | 07-Flow Rate | Heater 1: flow rate | GPM | Read | |
| AV | 12 | 01-Cntl Output Signal | Heater 2: control output signal (0-100) | % | Read | |
| AV | 3 | 02-Setpoint | Heater 2: setpoint in use (40-180) | °F | Read | |
| AV | 4 | 03-RmSetpt | Heater 2: remote setpoint written over the network (40-180) | °F | Write | |
| AV | 5 | 04-Outlet Temp | Heater 2: outlet temperature (40-205) | °F | Read | |
| AV | 6 | 05-FBk Sensor Temp | Heater 2: feedback sensor temperature (40-180) | °F | Read | |
| AV | 7 | 06-Over Temp Alarm | Heater 2: alarm bit field (alarms 1-4, manual, sensor/loop break, heater fail) | Read | Bit 0-3=Alarm 1-4 (1=alarm), Bit 4=Manual mode, Bit 5=Sensor break, Bit 6=Loop break, Bit 7=Heater fail | |
| AV | 8 | 07-Flow Rate | Heater 2: flow rate | GPM | Read | |
| AV | 9 | 01-Cntl Output Signal | Heater 3: control output signal (0-100) | % | Read | |
| AV | 150 | 02-Setpoint | Heater 3: setpoint in use (40-180) | °F | Read | |
| AV | 151 | 03-RmSetpt | Heater 3: remote setpoint written over the network (40-180) | °F | Write | |
| AV | 152 | 04-Outlet Temp | Heater 3: outlet temperature (40-205) | °F | Read | |
| AV | 153 | 05-FBk Sensor Temp | Heater 3: feedback sensor temperature (40-180) | °F | Read | |
| AV | 154 | 06-Over Temp Alarm | Heater 3: alarm bit field (alarms 1-4, manual, sensor/loop break, heater fail) | Read | Bit 0-3=Alarm 1-4 (1=alarm), Bit 4=Manual mode, Bit 5=Sensor break, Bit 6=Loop break, Bit 7=Heater fail | |
| AV | 155 | 07-Flow Rate | Heater 3: flow rate | GPM | Read | |
| AV | 10 | 01-Cntl Output Signal | Heater 4: control output signal (0-100) | % | Read | |
| AV | 158 | 02-Setpoint | Heater 4: setpoint in use (40-180) | °F | Read | |
| AV | 159 | 03-RmSetpt | Heater 4: remote setpoint written over the network (40-180) | °F | Write | |
| AV | 160 | 04-Outlet Temp | Heater 4: outlet temperature (40-205) | °F | Read | |
| AV | 161 | 05-FBk Sensor Temp | Heater 4: feedback sensor temperature (40-180) | °F | Read | |
| AV | 156 | 06-Over Temp Alarm | Heater 4: alarm bit field (alarms 1-4, manual, sensor/loop break, heater fail) | Read | Bit 0-3=Alarm 1-4 (1=alarm), Bit 4=Manual mode, Bit 5=Sensor break, Bit 6=Loop break, Bit 7=Heater fail | |
| AV | 157 | 07-Flow Rate | Heater 4: flow rate | GPM | Read |
No points match these filters.
Integration notes
- Older document (OMM-0080_0H, November 2014) for the ProtoNode RER gateway.
- Object IDs are fixed per profile and do not follow a formula; heaters 1-4 are ECS/SmartPlate Modbus addresses 29-32.
- Point names repeat for each heater; the heater number is in the description.
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. Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the ECS and SmartPlate water heaters (ProtoNode RER) 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 AERCO ECS and SmartPlate water heaters (ProtoNode RER)
How many BACnet points does the AERCO ECS and SmartPlate water heaters (ProtoNode RER) have?
This list has 28 BACnet objects: 28 analog values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which AERCO ECS and SmartPlate water heaters (ProtoNode RER) BACnet points are writable?
4 of the 28 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.
Where is the official AERCO ECS and SmartPlate water heaters (ProtoNode RER) BACnet documentation?
The source is AERCO ProtoNode Gateway User Manual (ProtoNode-RER / ProtoNode-LER), GF-129 (OMM-0080_0H), revision 2014-11-06, published free by AERCO at https://www.aerco.com/dfsmedia/0533dbba17714b1ab581ab07a4cbb521/58249-source/637395359810000000/omm-0080-0h-gf-129-protonode-ler-rer-11-06-14.pdf.
What are the minimum BACnet points to integrate the AERCO ECS and SmartPlate water heaters (ProtoNode RER)?
Start with AV 81 03-RmSetpt (Heater 1 remote setpoint, 40-180 °F); AV 80 02-Setpoint (Heater 1 setpoint in use, °F); AV 84 04-Outlet Temp (Heater 1 outlet temperature, °F); AV 11 01-Cntl Output Signal (Heater 1 control output, %); AV 86 06-Over Temp Alarm (Heater 1 alarm bits; bit 0-3 = alarm 1-4).
How do I enable BMS control of the AERCO ECS and SmartPlate water heaters (ProtoNode RER)?
For remote setpoint control set Rmt = SP and L-r = rmt on the heater, then write its 03-RmSetpt. There is no start/stop object.
How do I check these points on the real ECS and SmartPlate water heaters (ProtoNode RER)?
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 AERCO BACnet points lists
- Boiler controller
AERCO Benchmark E / Edge X
AERCO Benchmark E (BMK E) condensing boilers with the Edge X controller, including BST cascade plants; the table also lists the legacy Benchmark (BMK) Edge equivalents.
Also known as: BMK E, BMKE, Benchmark, Edge X, Edge controller, OMM-0173 - Boiler and water heater plant controller via ProtoNode gateway
AERCO C-More boilers / water heaters with BST or WHM (ProtoNode RER SSD)
AERCO C-More boilers running on-board BST sequencing and C-More water heaters (KC, Innovation) running WHM, up to 8 units, through the ProtoNode RER SSD profile.
Also known as: C-More, BST, Boiler Sequencing Technology, WHM, Water Heater Management, SSD, Slave/Slave Device, Innovation, KC, Benchmark, ProtoNode RER, 64084, GF-129, OMM-0080 - Boiler controller and plant sequencer via ProtoNode gateway
AERCO C-More boilers with ACS / BMS II (ProtoNode RER)
AERCO boilers with the C-More controller plus an ACS or BMS II plant sequencer, read through the AERCO ProtoNode RER.
Also known as: C-More, C-More controller, ACS, BMS II, BMS, ProtoNode RER, ProtoNode-RER, 64084, FPC-N34, GF-129, OMM-0080 - Commercial water heater controller
AERCO Edge [ii] water heater controller (standalone / WHM)
AERCO Innovation 1600-2000 water heaters with the Edge [ii] controller, run standalone or as a WHM (Water Heater Management) manager or client.
Also known as: Edge [ii], Edge ii, Edge 2, WHM, Water Heater Management, Centurion, OMM-0176, Innovation 1600-2000 - Boiler controller and plant sequencer via ProtoNode gateway
AERCO Modulex boilers with BCM and ACS / BMS II (ProtoNode RER)
AERCO Modulex boilers with a BCM, up to four, plus an ACS or BMS II sequencer, read through the AERCO ProtoNode RER.
Also known as: Modulex, MLX, Modulex E8, BCM, ACS, BMS II, ProtoNode RER, 64084, GF-129, OMM-0080
Source: AERCO ProtoNode Gateway User Manual (ProtoNode-RER / ProtoNode-LER), GF-129 · OMM-0080_0H · rev. 2014-11-06. Object names, instances and units are reproduced as published; descriptions are our own.