Fnc 02 - Sret / Subroutine Return - Mitsubishi Electric MELSEC FX3U Programming Manual

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
8.3 FNC 02 – SRET / Subroutine Return
Outline
This instruction returns the program execution from a subroutine to the main program.
1. Instruction format
FNC 02
SRET
2. Set data
Operand type
–
3. Applicable devices
Bit Devices
Oper-
and System User
Type
X Y M T C S D .b KnX KnY KnM KnS T C D R U \G
–
Explanation of function and operation
When CALL instruction in the main program is executed, the program execution jumps to a subroutine.
SRET instruction returns the program execution to the main routine.
Mnemonic
Independent Inst.
1 step SRET
There is no set data.
Digit Specification
Operation Condition
This instruction is the independent type, and
Continuous
does not require drive contact.
Operation
Description
Word Devices
Special
System User
Unit
V Z Modify K H
There are no applicable devices.
8 Program Flow – FNC 00 to FNC 09
8.3 FNC 02 – SRET / Subroutine Return
Data type
Others
Con- Real Charac-
Index
stant Number ter String
E " "
→ Refer to Section 8.2.
1
2
3
–
4
Pointer
P
5
6
7
8
9
10
239