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

CPU : MT7688AN MIPS CPU , 580 MHz
RAM : 128M Bytes DDR2 RAM
ROM : 32M Bytes Flash ROM
OS : OpenWRT Linux OS

Ethernet
Port Type : RJ-45 Connector
Number of Port : 4 LAN
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

WiFi port
2.4G WiFi IEEE 802.11 b/g/n
Support AP / Station

Serial Ports
RS-232/422/485 * 2 Port ( RS-232 supports RX/TX only )
RS-422/485 ( Surge Protect )
Speed：300 bps ~ 230.4 K bps
Parity：None , Odd , Even , Mark , Space
Data Bit：5 , 6 , 7 , 8
Stop Bit : 1 , 2
RS-232 Pins : Rx , Tx , GND
RS-422 : Rx+ , Rx- , Tx+ , Tx- ( Surge Protect )
RS-485 : Data+ , Data- ( Surge Protect )
15KV ESD for all signals

Modbus Software
Modbus TCP to RTU Slave
Modbus RTU Master to TCP Slave
Modbus TCP to ASCII Slave
Modbus ASCII Master to TCP Slave

Master TCP : 8 simultaneous TCP Master, 32 simultaneous Request for each TCP Master
RTC : Real Time Clock * 1
Buzzer * 1
Watch Dog Function
Power : DC 9~32 V , 1000 mA 1000mA@12V, support DC Jack & Terminal Input
LED Lamp : SYS (PWR) , LAN , RX , TX
Operating Temperature: -20℃~70℃
Storage Temperature : -25℃~80℃
Dimension : 180 x 110 x 30 mm ( W x D x H estimated )
Weight : 350 g ( Estimated )
RoHS : Compliant with RoHS
Regulatory Approvals : EMC : FCC Class A, CE Class A
Warranty : 1 year

Modbus MQTT Model Comparison