Modbus

R2026b

Communicate with Raspberry Pi^® hardware using Modbus^® protocol

Use the Modbus request-response protocol to implement a client-server architectural system that facilitates communication between Raspberry Pi hardware and peripheral devices.

Blocks

	Modbus TCP/IP Client Read	Client device reads data from server device register(s) over TCP/IP network
	Modbus TCP/IP Client Write	Client device writes data to server device register(s) over TCP/IP network
	Modbus TCP/IP Server Read	Server device reads data from server device register over TCP/IP network
	Modbus TCP/IP Server Write	Server device writes data to server device register over TCP/IP network

Model Settings

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Modbus Properties

Communication interface	Exchange data between host computer and target hardware
Mode	Modbus mode of operation for Simulink model
Remote Server IP port number	IP port number of client device
Local IP port number	IP port number of server device(s) connected on TCP/IP network
Configure Coils	Configure the starting address and number of coil registers
Start address	Starting address of the coil register
Quantity	Number of coil registers
Configure Discrete Inputs	Configure the starting address and number of discrete input registers
Start Address	Starting address of the discrete input register
Quantity	Number of discrete input registers
Configure Holding registers	Configure starting address and number of holding registers
Start address	Starting address of the holding register
Quantity	Number of holding registers
Configure Input registers	Configure starting address and number of input registers
Start address	Starting address of the input register
Quantity	Number of input registers
Received timeout (ms)	Maximum time in milliseconds that block should wait for response

Topics

Model Configuration Raspberry Pi Blockset
This section describes about the model configuration parameters.
Modularize Installation of Third-Party Packages and Libraries for Raspberry Pi Hardware
This section describes the workflow for downloading the core and optional application-based libraries and packages.

Featured Examples

MODBUS TCP/IP Communication Between Client and Server Devices Using Raspberry Pi Hardware

Use Raspberry Pi® Blockset to implement MODBUS® TCP/IP communication between MODBUS client and server devices. It also shows how to communicate between the two devices in four modes of operation, Client Read, Client Write, Server Read, and Server Write.

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