Modbus TCP 4G RTU Industrial Cellular Modem with RS485 DI Ports
4G RTU, ZHC4922 is a very cost-effective industrial-grade wireless
data terminal product. It uses LTE 4G wireless network as the
bearer network, provides users with wireless data transmission
channels through TCP/IP, and can complete the monitoring of remote
monitoring station serial devices and centers. Wireless data
communication between monitoring systems enables remote equipment
monitoring. This product is especially suitable for data collection
and monitoring of distributed unattended on-site equipment, such
as: environmental monitoring, intelligent water supply services,
weather monitoring, street lamp monitoring, heating and heating
monitoring, self-service terminal networking.
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 |
Features of 4G RTU
-Collection function:
- Acquisition of analog standard signals, such as pressure and
water level transmitters, 4-20mA signals (default)
- Collect data from 485 meters such as flow meters and electricity
meters
- Support fixed-point/timing acquisition, freely configure
acquisition/frequency
- Incompatible instrument protocols can be developed by instrument
drivers
Analog Automatic Calibration Threshold Report
Support preset range of collected values, device can perform
different control actionsaccording to the collected data.
Support MQTT Protocol
ZHC4922 can be connected to Aliyun and support the standard
MQTTprotocol owned IOT platform.
Adaptive ModBus RTU/TCP Protocol
The data format ofZHC4922 reply is the same as the data format sent
by the cloud.
The serial server actively initiates a TCP connection to the
server.If it fails, it will continueto reconnect until it succeeds.
If the connection is successful, the server and the serial
devicecan perform two-way transparent data transmission.
| 4G RTU |
RS485 Modbus | √ |
RS485 Automatic Acquisition | √ |
Virtual Serial Port | √ |
Connfiguration Software | √ |
Threshold Report | √ |
| Configuration Software Docking | √ |
Modbus RTU/TCP | √ |
