How to Network RS-232 Devices over Ethernet with the PLATYPUS PP-Ethernet-RS232 (WIZnet W55RP20)
PLATYPUS PP-Ethernet-RS232 is a compact WIZnet W55RP20 converter that bridges RS-232 serial devices to Ethernet with Modbus and MQTT, from about JPY 3,190.
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Components
Hardware components
WIZnet - W55RP20
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RP2040 + W5500 SiP; engine of the RS-232 to Ethernet converter
Project description
📌 Overview PLATYPUS is a South Korean maker of compact, WIZnet-based serial-to-Ethernet converters, and shares them on Qiita through the account PLATYPUS_oriana. This product is their PP-Ethernet-RS232, a small module that puts legacy RS-232 equipment onto a modern Ethernet network. The PP-Ethernet-RS232 is built around the WIZnet W55RP20 (an RP2040 plus W5500 system-in-package). It converts RS-232 serial data to Ethernet and back, so a serial PLC, sensor, or meter can be reached over TCP/IP, Modbus TCP, or MQTT without changing the original device. It is about 58 by 52 mm, has a D-Sub 9…
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