Integrated energy management gateways

HMI2004-EMS(RK3568)

Collects, bills, stores and classifies water, electricity, gas and heating/cooling energy data, with time-of-use electricity records and charts for reviewing building or equipment consumption. Provides 2 Ethernet ports, 4 serial ports, 2048-point capacity. Acquisition covers more than 500 protocols; check the driver against each connected device. This page covers the RK3568 hardware edition.

Serial ports4

RS485 ports4

Ethernet ports2

Forwarding protocolsBACnet / Modbus / MQTT / OPC UA

Physical interfacesRS485 / Ethernet

Point capacity2048

Device capacity128

Built-in touchscreen—

HMI configuration—

USB Type-C power—

4G connectivity—

WiFi—

LoRaWAN—

Model notes · More than 500 protocols.

Start using this model

Review the model documents, then prepare the files needed for connection and commissioning.

HMI2004-EMS(RK3568)

No related files are listed in this language. Contact technical support to confirm the documents you need.

General commissioning guide

Connection, point mapping, live-value checks and troubleshooting.

View general steps Confirm required files

Connection and configuration preparation

Review how devices connect, then prepare the field point list and supporting files.

01
Field devices
- Confirm the driver against the device brand, full model and communication documentation
02
Device-side acquisition
- To confirm
03
HMI2004-EMS(RK3568)
- Ethernet × 2
- RS485 × 4
04
System-side forwarding
- BACnet
- Modbus
- MQTT
- OPC UA
05
Compatible system types
- BACnet building management system
- Modbus system
- MQTT platform
- OPC system

Arrows show connection order. Check model wiring instructions and the project point list for terminals, port assignments and read/write directions.

Communication roles

Acquisition side: Not specified in the records; verify against the field device and supervisory system
Forwarding side: Not specified in the records; verify against the field device and supervisory system

Recorded capacity

2048 points / 128 devices

Check before connecting

Check the device brand, model, driver version and interface. Use the wiring diagram to confirm terminals and port assignments.
Prepare a point list with addresses or objects, data types, byte order, units and read/write permissions.
Confirm the role at each end and the device address, serial settings, or IP address and port.
Check point count, device count and physical port count separately, then confirm capacity for the actual data volume.

Files for configuration

Model documentsNo dedicated file listed
Request
User manualNo dedicated file listed
Request
Wiring diagramNo dedicated file listed
Request
Configuration tools and supporting filesNo dedicated file listed
Request

Statuses reflect files associated in the current language. Contact technical support with this model to confirm other supporting resources.

How to choose within a series

Match device-side protocols and the host system first, then check ports, wireless connections and capacity. Candidates below use confirmed model specifications.

Current model groupHMI2004

You need multiple serial and Ethernet protocols

Check models confirmed to cover all acquisition protocols for serial and Ethernet connections. Check protocol scope and physical port counts separately. Confirm dedicated CAN, KNX TP and 2-wire MBus connections for the specific model.

Confirmed candidates9 models

HMI2004-A9
All serial and Ethernet acquisition protocols
Forwarding: Database
HMI2004-A9-4G
All serial and Ethernet acquisition protocols
Forwarding: BACnet / Modbus / MQTT / Database / OPC UA
HMI2004-A9-4G(Custom)
All serial and Ethernet acquisition protocols
Forwarding: BACnet / Modbus / MQTT / Database / OPC UA

Show 5 more models

HMI2004-A9-WiFi
All serial and Ethernet acquisition protocols
Forwarding: BACnet / Modbus / MQTT / Database / OPC UA
HMI2004-A9(OPC)
All serial and Ethernet acquisition protocols
Forwarding: BACnet / Modbus / MQTT / Database / OPC UA
HMI2004-ARM
All serial and Ethernet acquisition protocols
Forwarding: Database
HMI2004-ARM-4G
All serial and Ethernet acquisition protocols
Forwarding: BACnet / Modbus / MQTT / Database / OPC UA
HMI2004-ARM-E
All serial and Ethernet acquisition protocols
Forwarding: BACnet / Modbus / MQTT / Database / OPC UA

8 of 9 models listed; continue filtering and checking full specifications.

View full group specifications

The device protocol is fixed

Check each model’s listed acquisition protocols and the required host-system protocol. A model suffix alone does not establish equivalent acquisition capability.

Confirmed candidates3 models

HMI2004-BMS(RK3568)
Listed acquisition protocols: GB/T 28181 / RTSP
Forwarding: BACnet / Modbus / MQTT / OPC UA
HMI2004-Lite-E
Listed acquisition protocols: Modbus RTU / Modbus TCP
Forwarding: BACnet / Modbus / MQTT / OPC UA
HMI2004-Scada(RK3568)
Listed acquisition protocols: OPC UA / OPC XML-DA / OPC DA / BACnet/IP / Modbus TCP / Siemens S7 / EtherNet/IP / SNMP
Forwarding: BACnet / Modbus / MQTT / Database / OPC UA

View full group specifications

Acquisition scope needs confirmation

These models have no listed acquisition scope suitable for this decision. Check their model notes and provide device make, model and protocol documentation.

Models to verify4 models

HMI2004-A55(RK3568)
Acquisition scope unconfirmed
Forwarding: BACnet / Modbus / MQTT / Database / OPC UA
HMI2004-EMS-4G
Acquisition scope unconfirmed
Forwarding: BACnet / Modbus / MQTT / OPC UA
HMI2004-EMS(RK3568)
Acquisition scope unconfirmed
Forwarding: BACnet / Modbus / MQTT / OPC UA

Show 1 more models

HMI2004-Lite
Acquisition scope unconfirmed
Forwarding: Database

View full group specifications

This guidance narrows the candidates. Confirm communication roles, read/write direction, the point list, wiring and model-specific resources before final selection.

“Unconfirmed” means documentation does not establish a value; it does not mean zero or unsupported.

Overview & technical information Selection checklist FAQ (1)Related content

Product overview

Key functions

Energy metering and tariffs

Collects water, electricity, gas and heating/cooling data for metering, billing and classified storage, including time-of-use electricity records.

Dashboards and historical trends

Review energy breakdowns, live changes and historical records, and compare devices or energy systems in charts.

Alarm notifications

Supports alarm notifications through WeChat, SMS, DingTalk; configure the required channels for the project.

Connections and integration

System-side interfaces: BACnet, Modbus, MQTT, OPC UA. Configure the documented acquisition protocols so supervisory systems can access field data through these interfaces.

Typical applications

Building and equipment energy management.

Model selection essentials

Model configuration: 2 Ethernet ports, 4 RS485 channels, 2048 points, 128 devices.

Current product specifications

Specifications are sourced from the supplied 2026 product catalog. Unspecified values remain unconfirmed.

Parameter	Specification
Total serial ports	4
RS485 ports	4
Ethernet ports	2
Point capacity	2048
Device capacity	128
Forwarding protocols	BACnet / Modbus / MQTT / OPC UA
Physical interfaces	RS485 / Ethernet

Model notes: More than 500 protocols.

Model datasheets

File unavailable in this language

Selection checklist

Confirm before selecting

Protocol compatibility is the first step. Check the device model, communication roles, point count and wiring. Capabilities that are not documented require confirmation.

Not yet documented：Acquisition protocols / Acquisition roles / Output roles / RS232 ports / CAN ports / KNX TP ports / Two-wire MBus ports / DI digital inputs / DO digital outputs / AI analog inputs / AO analog outputs / USB Type-C power / 4G connectivity / WiFi / LoRaWAN / HMI configuration / Built-in touchscreen / Product type

Continue filtering and comparing

Related FAQs

Find configuration and usage guidance linked to this content. Refer to documentation for the exact model and version.

What does X mean, and how do acquisition and forwarding protocols differ?

X denotes the acquisition-side protocols. Also check forwarding protocols, communication roles, physical interface types and port counts.

Read the full answer

HMI2004-EMS(RK3568)

Start using this model

General commissioning guide

Field devices

Device-side acquisition