Serial To 2G IOT Cellular Modem With 4DO 4DI 4AI Ports For remote Control
- Introduction of IOT Cellular Modem
ZHC2921 is a network IO product that supports 4-channel dry (wet)
node detection, 4-channel relay (COM, NO, NC) output, 4-channel
analog (current 4~20mA) detection, and 1-way serial port
passthrough transmission. It is compatible with Modbus RTU/TCP
protocol.With the function of "remote control" as the core, it is
highly easy to use, and users can easily and quickly integrate into
their own system to realize the remote control based on GPRS
network.
Parameters of IOT Cellular Modem
| |
Number of ports | RS485*1 | Number of interfaces | 4 Relay output |
Standard | RS485: A, B | Standard | DO*4, 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 | 4 Relay input |
Voltage | 9~36V | Standard | DI*4, COM*2 |
Current | 60mA(aver) @9V
30mA(aver) @36V | Detection range (wet node) | 5~50V->High0~2V->Low |
| |
ESD | IEC61000-4-2, Level 4 | Number of Interfaces | 4 Analog input |
Surge | IEC61000-4-2, Level 3 | Standard | AI*4, COM*2 |
Group pulse | IEC61000-4-2, Level 3 | Scope of test | 4~20mA |
- Solution of IOT Cellular Modem
Greenhouse
With the rapid development of the national economy, modern
agriculture has made considerable progress. The cultivation of
greenhouse crops has brought great convenience to people's lives,
and has been rapidly promoted and applied.
Zongheng Intelligent Control uses the Internet of Things technology
and adopts the remote measurement and control terminal RTU product
to launch an intelligent environmental monitoring system for
agricultural greenhouses to achieve informatization and intelligent
remote management of greenhouses, and give full play to the role of
Internet of Things technology in agricultural production. Ensure
that the environment in the greenhouse is the most suitable for
crop growth, realize refined management, create conditions for
high-yield, high-quality, high-efficiency, ecological, and safe
crops, and help users improve efficiency, reduce costs, and
increase profits.
| ZHC2921 |
RS485 Modbus | √ |
RS485 Automatic Acquisition | √ |
Virtual Serial Port | √ |
Connfiguration Software | √ |
Threshold Report | √ |
| Configuration Software Docking | √ |
Modbus RTU/TCP | √ |
