Developing Structured Project; Overview Of Structured Project - Mitsubishi Electric M800VW Series Manual

M800V/M80V Series PLC Development Manual
5 Peripheral Development Environment (GX Works2)

5.7 Developing Structured Project

5.7 Developing Structured Project
This chapter provides the overview of simple projects and the development procedure focusing on those specific to Mitsubishi
Electric CNC.
For the user safety sequence, refer to "M800/M80 Series Smart safety observation Specification manual".
For details of the program types that can be used in structured project, refer to "5.2.1 Support Status of Project Types,
Program Types and POUs".
As unique features of structured project, function blocks (FBs), functions (FCs) and user library can be used. The nesting level
of FB within FB differs depending on the program language. (Refer to "5.11.4 Restrictions".) Programs cannot be input/output
in the CSV file format. For details on labels, refer to "5.10 Creating Label"; for details on FB, refer to "5.11 Creating Function
Block".
For details on how to use FCs and user library, refer to "GX Works2 Operating Manual (Common)" and "GX Works2
Operating Manual (Structured Project)".

5.7.1 Overview of Structured Project

Programs can be created based on structured programming in this project type. By segmenting the control functions and
creating components from commonly used parts of programs, this type of programming (structured programming) is easy to
understand visually, and created components are highly reusable to other programs.
In structured project, sequence programs can be created using ladder diagram or ST language.
Project
Sequence Program
(Program File)
Sequence Program
(Program File)
PLC message data
PLC message data
Device comment
Device comment
IB-1501614-B
Global Label
Task
Task
Parameter
Program Block
Local Label
Program Block
Local Label
156
Function Block
Local Label
Function
Local Label
Function Block
Local Label
Function
Local Label