Industrial Modbus IO RTU Module 4G Wireless Modem for Data
Transmission
Parameters of ZHC4921
| |
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 |
ZHC4921 is an industrial-grade 4G RTU that provides 4 DI, 4 DO, 4
AI and 1 RS485 interface, supports local logic processing
operations, automatic acquisition and active reporting, Modbus
RTU/TCP adaptation, automatic calibration threshold reporting, dry
and wet node IO detection, and support one-to-one, many-to-one
network connection.
ZHC4921 has an RS485 interface, which supports the standard Modbus
RTU/TCP protocol. The configuration software can directly read data
and realize command control to ZHC4921 through the RS485 interface.
ZHC4921 is ideal for M2M and IoT applications including
distribution automation, smart metering, water & wastewater,
heating, street light monitoring and etc.
Reliable Serial to 4G Cellular Communication. With RS485
interfaces, full network coverage, wide temperature and wide
voltage, multi center transmission.Provides wireless data
communications between field serial devices and the central control
system to enable remote control of industrial field sites.
| ZHC4921 |
RS485 Modbus | √ |
RS485 Automatic Acquisition | √ |
Virtual Serial Port | √ |
Connfiguration Software | √ |
Threshold Report | √ |
| Configuration Software Docking | √ |
Modbus RTU/TCP | √ |
