Related Manuals for Siemens SIMATIC 400
Summarization of Contents
Problem Overview and Description
1.1 Overview of the Automation Problem
Provides an overview of the automation problem addressed in the document.
1.2 Description of the Automation Problem
Details the specific scenarios for SMS messaging with the S7 PLC.
Solution Overview and Core Functionality
2.1 Overview of the Overall Solution
Presents the overall system architecture and components for SMS messaging.
2.2 Core Functionality Scenarios
Details the key scenarios for SMS messaging functionality.
2.3 Hardware and Software Components
Lists the hardware and software components required for the application.
2.4 Performance Data
Provides performance data for components and the application.
Functional Mechanisms of the Application
3.1 Program Overview
Shows the overall program structure and interaction of different blocks.
3.2 Generating and Sending SMS
Details the process of generating and sending SMS messages.
3.3 Sending SMS with Coefficient
Explains how to send SMS messages with an attached coefficient.
3.4 Receiving and Evaluating SMS Orders
Describes receiving and evaluating SMS messages as orders.
3.5 Receiving Remote Value Query
Explains receiving query SMS and sending value feedback.
Installation and Configuration
4.1 S7 Station Hardware Configuration
Details the hardware setup for various S7 PLC stations.
4.2 MD720-3 Hardware Configuration
Details the hardware setup for the MD720-3 modem.
4.3 Software Installation
Provides instructions for installing the necessary software.
Commissioning the Application
5.1 General Preparations
Outlines general preparatory steps before commissioning the application.
5.1.1 Installing Application Software
Provides step-by-step instructions for installing the sample application software.
5.1.2 Setting MD720-3 Baud Rate
Explains how to set the baud rate for the MD720-3 modem using AT commands.
5.1.3 Setting Modem Parameters
Details entering SIM PIN, SMSC number, and message texts for modem initialization.
CP 340 and CP 341 Configuration
Details configuration for CP 340 and CP 341 using the ASCII driver.
CP 441-2 Configuration
Explains parameterization and configuration for CP 441-2.
ET 200S 1SI Configuration
Details configuration for the ET 200S 1SI ASCII serial interface module.
5.2 Downloading STEP 7 Project
Instructions for downloading the STEP 7 project to the PLC.
Operation of the Application
6.1 Sending SMS (Scenarios 1/2)
Explains how to send SMS messages, including prerequisites.
6.1.1 Generating and Sending SMS
Provides step-by-step instructions for generating and sending an SMS.
6.1.2 Sending SMS with Coefficient
Details sending SMS with an attached coefficient, including variable setup.
6.2 Receiving SMS (Scenarios 3/4)
Explains how the S7 station receives and evaluates incoming SMS messages.
6.2.1 Receiving and Evaluating SMS
Details the process of receiving and evaluating incoming SMS messages.
6.2.2 Remote Value Query
Describes the process of receiving a query SMS and sending a value back.
Further Information
RS 232 Sniffer
Explains the RS232 interface and the need for a special cable for data traffic analysis.
RS 232 Connection Diagram
Shows the connection diagram for a full duplex RS232 sniffer cable.
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