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Siemens LOGO! 24RC User Manual

Siemens LOGO! 24RC
236 pages
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LOGO! Manual
A5E00067781 01
Welcome to LOGO!
Dear customer,
Thank you for purchasing LOGO!, and congratulations on your
decision. In LOGO! you have acquired a logic module that meets
the stringent quality requirements of ISO 9001.
LOGO! is universal in application. Its comprehensive functionality
and great ease of use make it a highly cost–efficient solution for
virtually any application.
LOGO! documentation
This LOGO! manual tells you how to install, program and use
LOGO!.
You can find information on wiring in the LOGO! manual as well as
in the LOGO! product information that is supplied with each de-
vice. You can get further information on programming LOGO! via
the PC in the LOGO!Soft Comfort online help system. LOGO!Soft
Comfort is the programming software for PCs. It runs under
WINDOWS
and will help you get to know LOGO! and to write,
test, print out and archive programs independently of LOGO!.
Guide to the manual
We have subdivided this manual into 9 chapters:
Getting to Know LOGO!
Installing and Wiring LOGO!
Programming LOGO!
LOGO! Functions
Parameterizing LOGO!
LOGO!’s Program Modules
LOGO! Software
Applications
Appendices
Additional support
You can find answers to your LOGO! questions quickly and easily
on the Internet at http://www.ad.siemens.de/logo.

Table of Contents

Question and Answer IconNeed help?

Do you have a question about the Siemens LOGO! 24RC and is the answer not in the manual?

Siemens LOGO! 24RC Specifications

General IconGeneral
Power Supply24 V DC
Inputs8 digital inputs
Outputs4 relay outputs
Program Memory400 function blocks
WeightApprox. 250 g
Protection ClassIP20
Dimensions72 x 90 x 55 mm
Mounting TypeDIN rail mounting
Operating Temperature55 °C
Storage Temperature-40 to 70 °C

Summary

Getting to Know LOGO!

What is LOGO! ?

Defines LOGO! as a universal logic module and lists its integrated components and functions.

What can LOGO! do?

Describes diverse applications in domestic, installation, and industrial engineering tasks.

What device types are available?

Details the different LOGO! models based on voltage, inputs/outputs, and dimensions.

How LOGO! is structured

Illustrates the physical structure and components of LOGO! standard and bus variants.

Installing and Wiring LOGO!

General guidelines

Provides crucial safety and installation guidelines for wiring LOGO! devices correctly.

Installing/Removing LOGO!

Explains the process of mounting and dismounting LOGO! units onto a DIN rail.

Wiring LOGO!

Details connection procedures for power supply, inputs, and outputs of LOGO! devices.

Switching LOGO! On/Resumption of Power Supply

Describes how LOGO! behaves upon power-up based on program presence and module status.

Programming LOGO!

Connectors

Explains how inputs and outputs are identified and connected on LOGO!.

Blocks and Block Numbers

Defines blocks as functions and explains the role of block numbers in program structure.

From the Circuit Diagram to LOGO!

Guides users on translating conventional circuit diagrams into LOGO! programs using blocks.

The 4 Golden Rules for Working with LOGO!

Outlines four fundamental rules for efficient and correct LOGO! programming and operation.

Entering and Starting a Program

Details the steps to switch to programming mode and enter a basic program.

LOGO! Functions

Constants and Connectors – Co

Defines constants, inputs, analog inputs, ASi inputs, and outputs used in LOGO!.

List of Basic Functions – BF

Presents basic Boolean logic functions like AND, OR, NAND, NOR, XOR, NOT with representations.

Fundamentals of Special Functions

Provides an overview of special functions, their inputs, and background information.

On Delay

Explains the On Delay function, its inputs, timing, and operational behavior.

Off Delay

Describes the Off Delay function, its parameters, timing diagram, and function.

Latching Relay

Details the Latching Relay function, its set/reset inputs, and switching behavior.

Parameterizing LOGO!

Switching to Parameterization Mode

Guides users on entering parameterization mode for adjusting block parameters.

Selecting a Parameter

Details the steps to navigate and select a specific parameter for adjustment.

Changing a Parameter

Explains how to modify parameter values, similar to programming mode input.

LOGO! Software

LOGO!Soft Comfort

Introduces LOGO!Soft Comfort, its features like offline generation and simulation.

Connecting LOGO! to a PC

Explains how to establish a connection between LOGO! and a PC for program transfer.

Applications

Stairwell or Hall Lighting

Details requirements, previous solutions, and LOGO! implementation for stairwell lighting.

Automatic Door

Covers demands, previous solutions, and LOGO! based control for automatic doors.

Ventilation System

Outlines demands, previous solutions, and LOGO! implementation for ventilation systems.

Technical Specifications

General Technical Specifications

Lists general technical data including dimensions, weight, and environmental conditions.

Technical Specifications: LOGO! 230...

Provides detailed technical specifications for LOGO! 230 variants.

Technical Specifications: LOGO! 24 Basic

Details technical specifications for LOGO! 24 Basic variants.

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