bi-directional transparent data transmission between RS485 and Ethernet
Installation Method
Support Rail-Mount and Wall-Mount, compact size, cost-effective
Transparent Basic functions
Connect to virtual serial port Vircom, cloud server (MQTT+JSON), Configuration software (Modbus or TCP)
Modbus gateway support
Suitable for Modbus networking upgrade
Multi communication modes
supports TCP server / TCP client / UDP multicast / UDP mode, Dual-channel, each channel supports in below functions are separately
Model
Serial Port Type
Power Supply
Voltage Range
Dimensions (L × W × H)
1CH-RS485-ETH
Single serial port server
Screw terminal
DC 9~24V
89*37*59mm
1CH-RS232/485/422-ETH (V)
RS232/485/422 choose one, single serial port server
Screw terminal + DC 5.5 power port
DC 9~24V
94*65*25mm
1CH-RS232/485/422-ETH
RS232/485/422 choose one, single serial port server
Screw terminal + DC 5.5 power port
DC 9~24V
94*65*25mm
2CH-RS485-ETH
Dual serial ports server
Screw terminal
DC 9~24V
37*83*89mm
2CH-RS485-ETH(V)
Dual serial ports server
Screw terminal
DC 9~24V
150*105*41mm
2CH-RS232/485/422-ETH
RS232/485/422 choose one, Dual serial ports server
Screw terminal + DC 5.5 power port
DC 9~24V
94*65*25mm
4CH-RS485-ETH (V)
4 serial ports server
Screw terminal
DC 9~24V
150*105*41mm
4CH-RS485-ETH
4 serial ports server
Screw terminal
DC 9~24V
37*83*89mm
4CH-RS232/485/422-ETH
RS232/485/422 choose one, 4 serial ports server
Screw terminal + DC 5.5 power port
DC 9~24V
92*197*25mm
8CH-RS485-ETH (V)
8 serial ports server
Screw terminal
DC 9~24V
270*105*26mm
8CH-RS485-ETH
8 serial ports server
Screw terminal
DC 9~24V
37*83*89mm
8CH-RS232/485-ETH
8 serial ports server
Screw terminal + DC 5.5 power port
DC 9~24V
270*105*26mm
16CH-RS232/485/422-ETH
16 serial ports server
AC 220V power port
AC 220V
480*180*44mm
32CH-RS232/485/422-ETH
32 serial ports server
AC 220V power port
AC 220V
480*180*44mm
Product model
2CH-RS485-ETH (V)
4CH-RS485-ETH (V)
4CH-RS485-ETH (VI)
8CH-RS485-ETH (V)
8CH-RS485-ETH (VI)
Product Type
Serial server, Modbus Gateway, MQTT Gateway
Main Function
Bi-directional transparent data transmission between RS485 and Ethernet
Interface
RS485 port x 2, Ethernet port x 1
RS485 port x 4, Ethernet port x 2
RS485 port x 4, Ethernet port x 2
RS485 port x 8, Ethernet port x 2
RS485 port x 8, Ethernet port x 2
Power supply
9 ~ 24V DC screw terminal
9 ~ 24V DC screw terminal
18 ~ 36V DC screw terminal
9 ~ 24V DC screw terminal
18 ~ 36V DC screw terminal
Optocoupler isolation
With isolation
Without isolation
With isolation
Without isolation
With isolation
Communication
Ethernet
RJ45 port, 10M/100M, 2KV surge protection
Serial port
2xRS485
4xRS485
8xRS485
Serial specification
Baudrate
300~921600bps
Parity bit
none, odd, even, mark, space
Data bit
5 ~ 9 bits
Flow control
XON/XOFF, NONE
Software
Protocol
ETHERNET、IP、TCP、UDP、HTTP、ARP、ICMP、DHCP、DNS
Configuration
Vircom, WEB browser, device management library, Serial port AT command configuration
Communication method:
TCP/IP direct communicate, Virtual serial
Operating mode
TCP server, TCP client, UDP, UDP multicast
POWER REQUIREMENT
Input voltage
9~24V DC
9~24V DC
18~36V DC
9~24V DC
18~36V DC
Input current
30mA@12V DC
30mA@12V DC
120mA@24V DC
30mA@12V DC
120mA@24V DC
Environment
Operating temperature
-40~85℃
Storage temperature
-45~120℃
Humidity range
5~95% relative humidity
Dimensions
L x W x H =8.8cm×6.2cm×3.3cm
L x W x H =15cm×10.5cm×4.1m
2CH-RS485-ETH (V) is an RS485 edge computing IoT gateway specifically designed for industrial environments. It delivers deep system integration by combining a serial server, Modbus gateway, MQTT gateway, and RS485 to JSON converter. It has 2 Channels RS485 interfaces and an Ethernet interface, with optocoupler isolation, isolation voltage 1500V.
Supplied with mounting ears and rail buckles, it accommodates 3 installation methods for control cabinets. The network architecture supports advanced IP management: devices can use the same IP address, and different serial ports are distinguished by ports; alternatively, each serial port can use different IP addresses. It can not only save IP resources through shared addresses, but also enable independent network communication through different IP address.
The devices supports bi-directional transparent transmission and Modbus RTU to Modbus TCP function, has advanced storage Modbus gateway characteristics, and also supports MQTT protocol. Furthermore, it parses MODBUS RTU and 645 protocol conversion to JSON, facilitating scheduled telemetry upload function through MQTT/HTTP POST to enterprise platforms.
When used as a Modbus gateway, it supports Modbus TCP to Modbus RTU, so that central SCADA or the host computer can use the Modbus TCP protocol to collect data from RS485 Modbus RTU devices. On the contrary, if the RS485 end is used as a master station, it can also be used. It supports more advanced Modbus gateway functions, including configurable Modus gateways, storage-type Modbus gateways, etc., which fully meet various configurations and usages of Modbus gateways. The multi-host function it supports allows multiple computer master stations to access an RS485 slave device at the same time.
When used as an MQTT edge computing gateway, the device can transparently upload serial port data to the MQTT server using the MQTT protocol. Supported cloud servers include Baidu Cloud MQTT, Alibaba Cloud MQTT, China Mobile OneNet platform, etc. It supports parsing the collected Modbus RTU or non-standard serial port data into JSON format and encapsulating it in an MQTT data packet for secure telemetry uploading.
Supports uploading collected data in JSON format, automatic data collection, and supports Modbus RTU, 645 instrument version 97, 645 instrument version 07, and various non-standard RS485 protocols. Users can use Vircom to configure the uploaded data format and JSON keywords. When uploading, it can support MQTT protocol, HTTP POST protocol, HTTP GET protocol, transparent transmission protocol, and various non-standard network protocols.