GitHub - ethicstechOSS/Modbus-Slave: A library that allows your Arduino or MSP to communicate via Modbus protocol, acting as a slave. Supports serial (RS-232, RS-485), LoRa RN-2483 and IP via Ethernet (Modbus IP).
Using the Modbus Master Protocol Library (v1.2 : Free Download, Borrow, and Streaming : Internet Archive
![Libreria gestione dispositivi Modbus (eLLabMdbDevsLib) — Programmazione IEC 61131-3 (LogicLab) documentazione Libreria gestione dispositivi Modbus (eLLabMdbDevsLib) — Programmazione IEC 61131-3 (LogicLab) documentazione](https://support.elsist.biz/wp-content/uploads/logiclab-manual/_images/image260.jpg)