CGate-03 Front Modbus gateway
CGate-03 Front-left Modbus gateway
CGate-03 Front-right Modbus gateway
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CGate-03

The CGate series are dedicated IoT gateways purpose-built for Modbus devices. With complete device-management services built in, you can monitor every field point in real time through the web interface and sync to the cloud or your back-end.

Ethernet×1RS-485×1Cellular (4G)Total points (max)512Devices per RS-4858 devices (≤256 pts)Max networked devices16 devices (≤512 pts)Modbus Agent serviceExpandable storage

Product Highlights

Low-Power Compute Core

Low-Power Compute Core

Broadcom BCM2837 1.2GHz — low power draw, stable in continuous operation.

Proactive Alarming

Proactive Alarming

An abnormal reading on a monitored point triggers a proactive report — writing a log entry, sending email, and driving a DO output.

Local Storage & Cloud Upload

Local Storage & Cloud Upload

Runtime data is stored locally for historical queries and published to the cloud over MQTT — two independent channels.

Web Real-Time Monitoring

Web Real-Time Monitoring

No extra software to install — open a browser to see field devices and every monitoring point.

Modbus Agent

Modbus Agent

Define where polled data is stored in the Modbus map — one unified data source, served over Modbus-TCP.

Field Environment Suitability

Field Environment Suitability

Operating temperature 0 to 50 °C at 20–80 % RH — suited to ordinary indoor plant rooms and control cabinets.

I/O Interfaces

CGate-03 end-face callouts (Ethernet / USB ×2 / DIP / power) Modbus gateway
Network / USB / Power End

Ethernet (LAN)

10/100 Mbps port

USB ×2

USB 2.0 (480 Mbps)

DIP Switch

Mode select

Power In

DC power input

Hardware Specifications

Full datasheet (PDF) →
COMMUNICATION
Ethernet×1
RS-485×1
Cellular (4G)
MONITORING
Total points (max)512
Points per device32
Devices per RS-4858 devices (≤256 pts)
Max networked devices16 devices (≤512 pts)
Modbus Agent service
Modbus-TCP Master connections4
FUNCTIONS
Web real-time monitoring
Parameter import / export
Alarm | Log
Alarm | DO trigger
Alarm | Email
MQTT Publish
MQTT Subscribe
LOG
Device records1M records
Local records (CGate)10,000 records
Expandable storage
File export

Refer to the official datasheet for detailed electrical specifications.

Downloads

CGate-03 Datasheet

Download