22/09/2021
WEIDOS Quick Start Guide
Version: 00.00.01
Page 33 / 52
See RS485 and ModbusRTU examples of use in ArduinoIDE
File > Examples > Examples for WEIDOS-XXX >
RS485 / ArduinoModbus.
Ethernet
Ethernet port location on the Weidos PLC Family products (Top Cover):
Weidos Ethernet port is based on W5500 IC.
Ethernet libraries for Arduino and ESP32 shields are compatible with the Weidos controllers. Ethernet shield
communicates to the Internal CPU via SPI bus.
You can choose among multiple different protocols such as HTTP, HTTPS, MQTT, MQTTS, Modbus TCP and
most of the Industrial Standards.
Using the Weidos boards in Arduino IDE, there is a library that simplifies the use of Ethernet port and also
the protocol implementation.
Typical connection:
See Ethernet configuration examples in ArduinoIDE
File > Examples > Examples for WEIDOS-XXX >
ETHERNET.
