


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.
Product Highlights

Low-Power Compute Core
Broadcom BCM2837 1.2GHz — low power draw, stable in continuous operation.

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

Web Real-Time Monitoring
No extra software to install — open a browser to see field devices and every monitoring point.

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

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

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 device | 32 |
| Devices per RS-485 | 8 devices (≤256 pts) |
| Max networked devices | 16 devices (≤512 pts) |
| Modbus Agent service | ✓ |
| Modbus-TCP Master connections | 4 |
FUNCTIONS | |
| Web real-time monitoring | ✓ |
| Parameter import / export | ✓ |
| Alarm | Log | ✓ |
| Alarm | DO trigger | ✓ |
| Alarm | Email | ✓ |
| MQTT Publish | ✓ |
| MQTT Subscribe | ✓ |
LOG | |
| Device records | 1M records |
| Local records (CGate) | 10,000 records |
| Expandable storage | — |
| File export | ✓ |
Refer to the official datasheet for detailed electrical specifications.
Downloads
CGate-03 Datasheet
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Product line: CGate Dedicated Gateway · Viewing: CGate-03







