Send Modbus TCP commands over Ethernet / WiFi to get Modbus RTU data

CPU : A53 CPU , 1.2 GHz
RAM : 1G Bytes SDRAM
ROM : 8G Bytes Flash ROM ( Micro sd card )
Built-in Raspberry Pi Controller
OS : Linux OS

Ethernet
Port Type : RJ-45 Connector
Speed : 10 /100 M bps ( Auto Detecting )
Protocol : ARP , IP , ICMP , UDP , TCP , HTTP , DHCP
Protocol ：PPPoE , DDNS , NTP , FTP , Telnet
Mode : TCP Server / TCP Client / UDP
Setup : HTTP Browser Setup (IE & Netscape) , Console
Security : Setup Password
Protection : Built-in 1.5KV Magnetic Isolation

Software : RTU Slave, RTU Master, ASCII Slave, ASCII Master
Master TCP : 4 simultaneous TCP Master, 8 simultaneous Request for each TCP Master

Serial Port – 4 x RS232/422/485
Select any mixed 4 ports from 4 ports of RS232 and 4 ports of RS422/485
4 x RS232 ( Full function )
4 x RS422/485 ( Surge Protect )
Speed : 300 bps ~ 921.6 K bps
Parity : None , Odd , Even , Mark , Space
Data Bit : 5 , 6 , 7 , 8
Stop Bit : 1 , 2
RS232 Pins : Rx , Tx , GND , RTS , CTS , DTR , DSR , DCD
RS422 : Rx+ , Rx- , Tx+ , Tx- ( Surge Protect )
RS485 : Data+ , Data- ( Surge Protect )
15KV ESD for all signals

HDMI for Video / Audio
SD Interface : micro SD card ( 8G storage )
USB ( Host x 2 port ) : for WiFi Dongle (WiFi Lan) , Bluetooth Dongle, Memory Storage
RTC : Real Time Clock x 1
Buzzer x 1
Watch Dog Function
Power : DC 9~30 V , 1000 mA 1000mA@12V, support DC Jack & Terminal Input
Led Lamp : SYS (PWR) , LAN , LED 1 , LED 2 ( User Define )
Operating Temperature : 0°C ~ 70°C
Storage Temperature : -10°C ~ 80°C
Dimensions : 180 x 110 x 30 mm ( W x D x H )
Weight : 350 g
RoHS : Compliant with RoHS
Regulatory Approvals : EMC : FCC Class A, CE Class A
Warranty : 1 year