Modbus gateway_Ethernet gateway_Support MQTT protocol

Modbus gateway generally refers to a device that can support multiple serial devices and forward them to a remote network. Generally based on Modbus serial communication protocol. For example, through the TCP/IP protocol, the remote serial device is virtually connected to the local computer, as if the remote device is directly connected to the local computer. There are also Modbus gateways that only support multi-channel device switching.

Modbus gateway device

The functions of the following devices are almost the same. The difference lies in different networks and different interfaces. You can choose the interface according to your own needs. Some products support the MQTT protocol. If you want to know more, you can consult through the phone number at the top of the website. The following devices all support special functions such as local logic processing operations, automatic collection and active reporting, Modbus RTU/TCP adaptation, automatic calibration threshold reporting, configuration software docking, and wet and dry node IO detection.

GPRS network

Nome/Modello Network Interface
GPRS RTU (ZHC2931) RS485/RS232/2DI/DO/AI
GPRS DTU (ZHC2921) RS485/4DO/4DI/4AI

Full Netcom 4G network

Nome/Modello Network Interface
4G RTU (ZHC4661) 1RS485/4AI/2AO
4G RTU (ZHC4921) 1RS485/4DI/4DO/4AI
4G RTU (ZHC4922) 4DI/4DO/4AI/1RS485
4G RTU (ZHC4941) 8DO/8DI/8AI/485/232

LoRa network

Nome/Modello Network Interface
LoRa RTU (ZHC0561) 1RS485/2DI/2DO
LoRa RTU (ZHC0661) RS485/4AI/2AO

Ethernet network

Nome/Modello Network Interface
Ethernet RTU (ZHC1661) RS485/4AI/2AO
Ethernet RTU (ZHC1921) RS485/4DI/2PIN/4DO/4AI

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