4 20mA MQTT Modbus Protocol 4G RTU Relay Control Data Receiver for
Sensors
Parameters of 4G RTU
| |
Number of ports | RS485*1 | Number of interfaces | 4 Relay output |
Standard | RS485: A, B | Standard | DO*1, 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 |
| Equipment Port |
| SIM Card | 1.8V/3V |
| LTE Antenna | SMA |
ZHC4922 is an industrial-grade 4G RTU, providing 4 DI, 4 DO, 4 AI
and 1 RS485 interface, supporting local logic processing
operations, automatic acquisition and active reporting, MQTT
RTU/TCP adaptive, dry and wet node IO detection and other
functions.
Support MQTT communication based on modbus protocol, and connect
seamlessly with Ali-Cloud IoT platform in the future.
·Connect the inverter, PLC industrial instrument and meter remote
alarm
·Connect temperature and humidity sensors, water level, liquid
level meter, etc.
·Connect analog signal sensors, current, voltage transmitters, etc.
·Remote control of water pumps, motors, power supplies, relays,
etc.
·Connect human body sensor, smoke sensor, water sensor and other
sensors
·Other instruments
Smart Meter Reading
Traditional manual meter reading is time-consuming and laborious,
and accuracy and timeliness cannot be reliably guaranteed. This
leads to the failure of relevant marketing and business management
software to obtain sufficiently detailed and accurate original
data; general manual meter reading is performed on a monthly basis
It is feasible for user metering, but it is not enough for relevant
supply departments to conduct deeper analysis and management
decision-making. The actual demand of the industry has given birth
to the continuous development of automatic meter reading system
technology and application.
| 4G RTU |
RS485 Modbus | √ |
RS485 Automatic Acquisition | √ |
Virtual Serial Port | √ |
Connfiguration Software | √ |
Threshold Report | √ |
| Configuration Software Docking | √ |
Modbus RTU/TCP | √ |
