2
-
4
CHAPTER2 SEQUENCE PROGRAMS
2
2.2 Sequ
ence Pr
ogram C
onfig
uration
2.2.1 Ma
in r
outine progr
am
2.2.1 Main routine program
(1) Definition
Main routine program is an entire program from the step 0 to the END or FEND instruction.
(2) Program operation
A main routine program executes its operations from the step 0 to the END or FEND instruction and then
performs END processing.
After the END processing, the program restarts its operations from the step 0.
When multiple programs are executed, the main routine program operation after execution of the END or FEND instruction
varies depending on the preset execution conditions. (
Remark
For details of the END and FEND instructions, refer to the following.
MELSEC-Q/L Programming Manual (Common Instruction)
Figure 2.5 Main routine program
END/FEND
END/FEND
Main routine
program
Step 0
END
processing
Indicates execution of
the program.
The program operation
returns to the step 0.
Содержание 00JCPU
Страница 1: ......
Страница 2: ......
Страница 96: ...2 51 2 4 5 Character string data 1 Definition The CPU module uses shift JIS code character strings...
Страница 541: ......
Страница 542: ......