Digital Input Module IOT Cellular Modem Rs485 Modbus Server For Data Monitoring
- Introduction of IOT Cellular Modem
- 4G IOT Cellular Modem ZHC4941 is an industrial-grade 4G RTU that provides 8 DI, 8 DO, 8 AI and 1 RS485/232 interface, supports local logic processing operations, automatic acquisition and active reporting, Modbus RTU/TCP adaptation, and automatic threshold calibration Special functions such as reporting, configuration software docking, dry and wet node IO detection, support one-to-one, many-to-one network.
Parameters of IOT Cellular Modem
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| Number of ports | RS485*1 | Number of interfaces | 8 Relay output |
| Standard | RS485: A, B | Standard | DO*8, COM*2 |
| Baud rate | 600～921600bps | Mechanical durability | 10^7 |
| Data bit | 8, 9 | Electrical durability | 10^5 |
| Stop bit | 0.5, 1, 1.5, 2 | Capacity | 5A 250VAC 30VDC |
| Check Bit | NONE EVEN ODD | |
| | Number of interfaces | 8 Relay input |
| Voltage | 9~36V | Standard | DI*8, COM*2 |
| Current | 60mA(aver) @9V
30mA(aver) @36V | Detection range (wet node) | 5~50V->High0~2V->Low |
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| ESD | IEC61000-4-2, Level 4 | Number of Interfaces | 8 Analog input |
| Surge | IEC61000-4-2, Level 3 | Standard | AI*8, COM*2 |
| Group pulse | IEC61000-4-2, Level 3 | Scope of test | 4~20mA |
Working Mode of IOT Cellular Modem
1.HTTP Client
Support serial data transmission to designated server via HTTP.
2. TCP Client
The serial server actively initiates a TCP connection to the server. If it fails, it will continue to reconnect until it succeeds. If the connection is successful, the server and the serial device can perform two-way transparent data transmission.
- Application
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- IOT Cellular Modem
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- ZHC4941 can be used in water quality online monitoring system. It sends water quality monitoring information and data to the monitoring center through GPRS/4G/LORA and other communication networks, which can realize automatic online sampling of water quality and real-time grasp of water quality; water quality parameters are automatically collected by monitoring points With remote communication and transmission, the computer control center of the central station conducts data collection, sorting and comprehensive analysis; monitoring information can be transmitted to relevant water conservancy and water management departments to provide an effective basis for supervision and management of water quality. Applicable to: water source monitoring, online river water quality monitoring, environmental monitoring stations, municipal water treatment process, municipal pipeline network water quality supervision, rural tap water monitoring; circulating cooling water, swimming pool water operation management, industrial water recycling, industrial aquaculture, etc.
| | ZHC4941 |
| RS485 Modbus | √ |
| RS485 Automatic Acquisition | √ |
| Virtual Serial Port | √ |
| Connfiguration Software | √ |
| Threshold Report | √ |
| Configuration Software Docking | √ |
| Modbus RTU/TCP | √ |
