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1 OVERVIEW
1.3 ST Program Creating Procedure
The following flowchart indicates the general procedure of ST programming.
In the following example, parts were created with the function block function and a
main program was then created in ST language.
Creation of new project
FB variable definition
FB definition
Define the variables used in an FB program.
For details, refer to the GX Developer Operating Manual
(Function Block).
Create an FB program.
For details, refer to the GX Developer Operating Manual
(Function Block).
Program label definition
ST programming
Define the global variables and local labels in a program.
For details, refer to the GX Developer Operating Manual.
Convert (compile) the ST program into a program that can be
executed by the PLC CPU.
For details, refer to the GX Developer Operating Manual
(Structured Text).
Convert (compile)
Write to PLC
Perform write to the PLC CPU.
For details, refer to the GX Developer Operating Manual
(Structured Text).
Confirm the program behavior by conducting a device test.
For details, refer to the GX Developer Operating Manual
(Structured Text).
Online debugging
End
For details, refer to the GX Developer Operating Manual
(Structured Text).
Call FB and create an ST program.
Described in this manual.
Содержание MELSEC L series
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