Siemens S7 300 Modbus RTU

Which hardware and software components do I need to use the Siemens S7 300 Modbus RTU? I am going to make a project in electronics so I need to attach it in my project. So please help me to understand the S7-300 Modbus RTU communications?

Hello sir, what is Siemens S7 300 Modbus RTU. Is there any one can provide me here PDF of Siemens S7 300 Modbus RTU?

[pooja]

The Siemens is provides products and solutions with industrial security functions that support the secure operation of plants, systems, machines and networks.

In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement and continuously maintain a holistic, state-of-the-art industrial security concept.

The Siemens is provides connectivity between S7 300 Modbus RTU. The Master-Slave Communication with Modbus RTU for S7-300 and ET 200S Systems is provides various connectivity.

This application demonstrates how the function of a Modbus RTU master as well as of several Modbus RTU slaves can be realized flexibly in an S7-300/ ET ET 200S automation system.

The application demonstrates:

The configuration of the CP 341 as Modbus RTU master
The configuration of the ET 200S 1SI module as Modbus RTU slave
The technical program implementation of a Modbus RTU master and slave program in the S7-300 CPU in STEP 7 V5.5 and STEP 7 (TIA Portal)


Table of contents:

Table of Contents
Warranty and Liability
Task
Solution
Solution overview
Hardware and software components used
Description of the Modbus RTU Protocol
Function mechanisms of Modbus RTU
Configuration in STEP 7 (TIA Portal)
Configuration of the CP 341 as Modbus master
Configuration of the ET 200S 1SI as Modbus slave
Description of the STEP program
Overview
Operation of the FB Master_Modbus
Call of the FB Master_Modbus
Initialization
Cyclic processing of the communication jobs
PLC data type Data_for_Master
Function mechanisms of the Modbus Slaves
Calling the FB S_MODB (FB81)
Data blocks
DB "Master_Data"
Configuration and Settings
Modifying communication settings
Modifying existing communication jobs
Adding further communication jobs
Procedure for Modbus master
Procedure for Modbus Slave
Adjusting the receive buffers
Commissioning of the application example
Hardware configuration
Configuring the hardware

Here is PDF for Notification of Master-Slave Communication with Modbus RTU Protocol for S7-300 and ET 200S Systems: