Thank you for purchasing the Mitsubishi programmable controllerMELSEC-L series.© 2010 MITSUBISHI ELECTRIC CORPORATIONSafety GuidelinesPrior to use, please read this and relevant manuals thoroughly tofully understand the product.MODEL LJ72GF15-T2-U-HWMODELCODE 13J241IB(NA)-0800455-L(2110)MEE

Mitsubishi Electric MELSEC LJ72GF15-T2-U-HW Safety Manuallines

MELSEC L series

SAFETY PRECAUTIONS

INTRODUCTION

MANUALS

TERMS

CHAPTER 1 OVERVIEW

Features of Structured Programs

CHAPTER 2 STRUCTURED DESIGN OF SEQUENCE PROGRAMS

Structured Sequence Program

CHAPTER 3 PROCEDURE FOR CREATING PROGRAMS

CHAPTER 4 PROGRAM CONFIGURATION

Project

Tasks

POUs

Program

Function blocks

Operators

Ladder blocks

Programming languages for POUs

Functions, function blocks, and operators

Labels

Label classes

Setting labels

Data types

Expressing methods of constants

Method for Specifying Data

Bit data

Word (16 bits) data

Double word (32 bits) data

Single-precision real/double-precision real data

String data

Time data

Arrays

Structures

Device and Address

Address

Correspondence between devices and addresses

Index Setting

Libraries

User libraries

Precautions on Assigning a Name

CHAPTER 5 WRITING PROGRAMS

Operators in ST language

Syntax in ST language

Calling functions in ST language

Precautions when using conditional syntax and iteration syntax

Operations when the master control instruction is used

Structured Ladder/FBD

Ladder symbols in structured ladder/FBD language

Executing order

Ladder branches and compilation results

Precautions on creating programs with structured ladder/FBD

APPENDICES

Internal system device

Link direct device

Intelligent function module device

File register

Constant

Appendix 2 Character Strings That Cannot Be Used in Label Names and Data Names

Appendix 3 Recreating Ladder Programs

Example of creating a structured program

INDEX

REVISIONS

WARRANTY

TRADEMARKS

CONDITIONS OF USE FOR THE PRODUCT

RELEVANT MANUALS

DISCONTINUED MODELS

PART 1 MELSEC COMMUNICATION PROTOCOL

CHAPTER 1 ABILITY OF MC PROTOCOL

Features

CHAPTER 2 SUPPORTED DEVICES AND ACCESSIBLE RANGES

CHAPTER 3 COMMUNICATION PROCEDURE

Considerations

Considerations when connecting C24

Considerations when connecting E71

PART 2 MESSAGE FORMATS

CHAPTER 4 MESSAGES OF SERIAL COMMUNICATION MODULE

Message Formats of Each Protocol

Format 2

Format 3

Format 4

Format 5

Details of Setting Data

Number of data bytes

Block number

End code

CHAPTER 5 MESSAGES OF ETHERNET INTERFACE MODULE

Frame

Message Format

Request data length and response data length

CHAPTER 6 ACCESS ROUTE SETTINGS

C frame

E frame, 3E frame

E Frame

Network No., PC No

Request destination module I/O No., request destination module station No

Self-station No

PART 3 COMMAND

CHAPTER 7 COMMANDS AND FUNCTIONS

Commands for 4C/3C/4E/3E frame

Commands for 2C frame

CHAPTER 8 DEVICE ACCESS

Device code list

Number of device points

Number of blocks

Read data, write data

Set/reset

Monitor condition specification

Batch Read and Write

Batch read in bit units (command: 0401)

Batch write in word units (command: 1401)

Batch write in bit units (command: 1401)

Random Read and Write

Random write in word units (test) (command: 1402)

Random write in bit units (test) (command: 1402)

Batch Read and Write Multiple Blocks

Batch write multiple blocks (command: 1406)

Device Memory Monitor

Register monitor data (command: 0801)

Monitor (command: 0802)

CHAPTER 9 LABEL ACCESS

Abbreviation specification of label

Points

Data type ID

Data length, unit specification

Batch write array type labels (command: 141A)

Random write labels (command: 141B)

CHAPTER 10 BUFFER MEMORY ACCESS

Batch read (command: 0613)

Batch write (command: 1613)

Intelligent Function Module

Data to be specified in commands

Batch read (command: 0601)

Batch write (command: 1601)

CHAPTER 11 CONTROL MODULE OPERATION

Model name and model code

Remote password

Loopback data

Communication error information

Remote Operation

Remote STOP (command: 1002)

Remote PAUSE (command: 1003)

Remote latch clear (command: 1005)

Remote RESET (command: 1006)

Read CPU model name (command: 0101)

About Manuals

How to Use This Manual

Abbreviations and Generic Terms in This Manual

What Is the ST Language?

Features of ST Program in MELSEC-Q/L Series

ST Program Creating Procedure

Programming tool for ST program

Usable Characters

Data Handling

About ANY type

Array and structure

Data Representation Methods

Devices

Assignment Statement

Examples of using the operators

Control Syntaxes

Conditional statements

Repeat statement

Other control syntaxes

Precautions for use of control syntaxes

Call of Function Block

Comment

How the functions are described

Output

Bit Shift

Termination

Comparison Operation

Arithmetic Operation

Data Conversion

Data Transfer

Program Execution Control

I/O Refresh

Logical Operation Commands

Rotation

Shift

Bit Processing

Data Processing

Structuring

Buffer Memory Access

Character string processing

Special Functions

Data Control

Clock

Program Control

Others

Numerical Functions (General Functions)

Numeric Functions (Logarithm Functions)

Numerical Functions (Trigonometric Functions)

Arithmetic Operation Functions

Bit Shift Functions

Bit Type Boolean Functions

Selection Functions

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