Siemens Simatic SM331 User Manual

SIMATIC SIMATIC SM331; AI 8x12 Bit Getting Started part 1: 4 -20mA
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Preface
1
Requirements
2
Introduction
3
Mechanical setup of the
example station
4
Electrical connection
5
Configuration of the
SIMATIC Manager
6
Testing the user program
7
Diagnostic interrupt
8
Hardware interrupt
9
Appendix
A
SIMATIC
SM331; AI 8x12 Bit Getting Started
part 1: 4 -20mA
Getting Started
11/2006
A5E00253410-02

Siemens Simatic SM331 Specifications

General

Product Type	Analog Input Module
Product Family	SIMATIC S7-300
Number of Inputs	8
Supply Voltage	24 V DC
Input Types	Voltage, Current
Resolution	12 bits
Operating Temperature	0°C to +60°C
Dimensions (W x H x D)	40 mm x 125 mm x 120 mm
Isolation	Channel-to-channel and channel-to-backplane bus isolation

Summary

Preface

1.1 General

Purpose of the Getting Started guide and an overview of its content.

Requirements

2.1 Basics

Required knowledge and essential hardware/software for the project setup.

Introduction

3.1 Example of an application

Overview of the sample station setup including analog input devices.

Mechanical setup of the example station

4.1 Mounting the example station

Step-by-step instructions for assembling the basic hardware components of the station.

4.2 Mounting of analog module components

Details on preparing and physically installing the SM331 analog input module.

Electrical connection

5.2 Wiring the power supply module and the CPU

Detailed steps for connecting the power supply unit and the CPU to the system.

5.3 Wiring of the analog module

Guidance on connecting the analog measurement transducer to the SM331 module.

Configuration of the SIMATIC Manager

6.1 Creating a new STEP7 project

Steps to initiate and create a new project using the STEP7 wizard.

6.2 Hardware configuration

Creating the hardware configuration for the example station within SIMATIC Manager.

STEP 7 user program

6.3.1 Tasks of the user program

Overview of user program requirements for storing and processing analog input data.

6.3.2 Creating a user program

Methods for creating a user program, focusing on importing and compiling source files.

Testing the user program

7.1 Downloading system data and user program

Downloading the created system data and user program into the automation system.

7.2 Visualization of the sensor values

Inserting and using a variable table to monitor sensor input values.

Diagnostic interrupt

8.1 Reading diagnostic information from a PG

Methods for reading diagnostic information and identifying hardware errors from a programming device.

8.2 General diagnostics

Accessing general diagnostic information for the SM331 module via the diagnostic tab.

Hardware interrupt

9.1 Hardware interrupt

Utilizing the SM331's capability to trigger hardware interrupts via organization block OB40.

Appendix

A.1 Source of the user program

Provides the STL source code for the example user program, enabling review and understanding.