Mitsubishi Electric MELSEC FX Series - 7.1.7 FEND

7 Applied Instructions
7.1 Program Flow
133
FXCPU Structured Programming Manual
(Basic & Applied Instruction)
1
Outline
2
Instruction List
3
Configuration of Instruction
4
How to Read Explanation of Instructions
5
Basic Instruction
6
Step Ladder Instructions
7
Applied Instructions
8
Interrupt Function and Pulse Catch Function
A
Relationships between devices and addresses
7.1.7 FEND
Outline
This instruction indicates the end of the main program.
1. Format and operation, execution form
2. Set data
3. Applicable devices
Function and operation explanation
When FEND instruction is executed, output processing, input processing and watchdog timer refresh are
executed, and then the program execution returns to the step 0.
FEND instruction is required in creating subroutine programs and interrupt programs.
1. In the case of CJ instruction
FX3U(C) FX3G FX2N(C) FX1N(C) FX1S FXU/FX2C FX0N FX0(S)
Instruction
name
Operation
Execution
form
Expression in each language
Structured ladder ST
FEND 16 bits Continuous FEND(EN);
Variable Description Data type
Input
variable
EN Input condition Always TRUE
Output
variable
ENO Input status Bit
Operand
type
Bit Devices Word Devices Others
System User Digit Specification
System
User
Special
Unit
Index Constant
Real
Number
Character
String
Pointer
XYMTCS
D.b
KnX KnY KnM KnS T C D R
U\G
VZModifier K H E
""
P
- No target device is available.
FEND
EN ENO
X010
Main routine program
Main routine program
Main routine program
0
P20
When X010 is OFF
Jump
When X010 is ON
CJ
EN ENO
p
FEND
EN ENO
P20
FEND
EN ENO