Mitsubishi MELSEC-F FX-TRN-BEG-E - Ladder Program Development Guide; Ladder Programming Fundamentals; Ladder Programming Project Setup; Managing Ladder Programs

LADDER PROGRAMS
C-1
LADDER PROGRAMS
The method to write a PLC program in the ladder program area is explained in this section.
The key operations are mostly the same as those in GX Developer, the FX Series
Programming Software.
Contents
1. Outline..................................................................................................C-2
1.1 Role of ladder tool .............................................................................................. C-3
2. Preparation befor Operating.................................................................C-5
2.1 What is a Project ................................................................................................ C-5
2.2 Creating and Saving Project............................................................................... C-5
2.2.1 Creating a new project ............................................................................................. C-5
2.2.2 Saving of a Project with a Different Name................................................................ C-6
2.2.3 Overwriting of a project ............................................................................................ C-6
2.3 Opening a project ............................................................................................... C-7
2.4 Copying a project................................................................................................ C-8
3. Operation..............................................................................................C-9
3.1 Writing the program .......................................................................................... C-10
3.1.1 Basic instruction ..................................................................................................... C-10
3.1.2 Writing STL Instruction ........................................................................................... C-13
3.1.3 Application instruction ............................................................................................ C-14
3.1.4 Conversion ............................................................................................................. C-15
3.2 Editing the Program.......................................................................................... C-16
3.2.1 Insert and Delete .................................................................................................... C-16
3.2.2 Cut, Copy and Paste .............................................................................................. C-17
3.2.3 Undo.......................................................................................................................C-18
3.3 Display and input of comments ........................................................................ C-19
3.3.1 Display of comments .............................................................................................. C-19
3.3.2 Input of comments.................................................................................................. C-20
3.4 Communication with virtual PLC....................................................................... C-21
3.4.1 Write to PLC ........................................................................................................... C-21
3.4.2 Monitor display ....................................................................................................... C-22
3.4.3 Device test.............................................................................................................. C-22
3.5 Print .................................................................................................................. C-24
FX-TRN-BEG-E