Modbus TCP library for Arduino family v1.0.0

Author: Abraxas666

The library includes the main functionalities to read and write Coil Status, Input Status, Holding registers and Input registers

Bill of Materials (BOM)

Qty	Component	Description
1	Ethernet shield	W5100 ethernet shield for arduino
1	Arduino Uno

✅ Example

The example transform Arduino in a Modbus-TCP slave device. The following functions code have been implemented

Modbus Function Codes Summary

Code	Name	Description
1	Read Coils	Reads the ON/OFF status of discrete outputs (coils).
2	Read Discrete Inputs	Reads the ON/OFF status of discrete inputs.
3	Read Holding Registers	Reads the contents of holding registers (read/write).
4	Read Input Registers	Reads the contents of input registers (read-only).
5	Write Single Coil	Forces a single coil to ON or OFF.
6	Write Single Register	Writes a single holding register.
15	Write Multiple Coils	Forces multiple coils to ON or OFF.
16	Write Multiple Registers	Writes multiple holding registers.
22	Mask Write Register	Modifies specific bits in a holding register using AND/OR masks.
23	Read/Write Multiple Registers	Reads and writes multiple holding registers in one transaction.

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