Chengdu Zongheng Intelligence Control Technology Co., Ltd.
Internet of Things Devices and Solutions Provider
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Digital Input Output MQTT Modem Modbus Gateway Rs485 To 4g GSM Controller
Manuals for MQTT Modem ZHC492C
ZHC492C_Register address table.xlsx
Parameters of MQTT Modem
ZHC492C support 4-channel dry (wet) node detection, 4-channel relay (COM, NO, NC) Output, 4 channel analog quantity (current 4~20mA) detection, 1 channel RS485 transparent network IO products, compatible with Modbus RTU/TCP protocol. With remote control as the core function, it is highly easy to use, users can easily and quickly integrate into their own systems to realize remote and local control based on LTE, RS485.
Client can send Modbus commands to ZHC492C through the network and serial port to read and write DO status.
DO of ZHC492C support active reporting, restarting the holding relay status, output holding time, timing flip.
ZHC492C can realize long-distance data transmission of one to one, one to many and many to many.
Customers do not need to develop the server, but configure the cloud networking function of the device.
Application of MQTT Modem
1. Automatic soil moisture monitoring
Establish a soil information system to master the overall quantity, quality and spatial distribution of soil resources.
2. Automatic weather monitoring
Improve the accuracy of weather forecasts to provide a scientific basis for governments at all levels to prevent and reduce disasters.
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| ZHC492C |
| RS485 Modbus | √ |
| RS485 Automatic Acquisition | √ |
| Virtual Serial Port | √ |
| Connfiguration Software | √ |
| Threshold Report | √ |
| 4 Channel Socket | √ |
| 8 Alarm Clocks | √ |
| Customize the Follow Logic of Ports | √ |
| JSON/Modbus RTU/TCP | √ |