70
FX
3G
/FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
3 Instruction List
3.2 Step Ladder Instructions
3.2
Step Ladder Instructions
3.3
Applied Instructions ... in Ascending Order of FNC Number
Applied instructions such as Arithmetic operation, Rotation and Shift, Handy instructions etc. are used
especially when numeric data is handled.
Mnemonic
Name
Symbol
Function
Applicable devices Reference
STL
Step Ladder
Starts step ladder
S
Chapter 35
RET
Return
Completes step ladder
–
Chapter 35
*1: The instruction is provided in the FX
2N
/FX
2NC
Series Ver.3.00 or later. *5: The instruction is provided in the FX
3UC
Series Ver.2.20 or later.
*2: The function is changed in the FX
3UC
Series Ver.1.30 or later.
*6: The instruction is provided in the FX
3G
Series Ver.1.10 or later.
*3: The instruction is provided in the FX
3UC
Series Ver.1.30 or later.
*7: The instruction is provided in the FX
3U
/FX
3UC
Series Ver.2.61 or
*4: The function is changed in the FX
3UC
Series Ver.2.20 or later.
later.
FNC No. Mnemonic
Symbol
Function
FX
3U
FX
3U
C
FX
3G
Applicable PLC
Reference
FX
1S
FX
1N
FX
2N
FX
1N
C
FX
2N
C
Program Flow
00
CJ
Conditional Jump
3 3 3 3 3 3 3 3
Section
8.1
01
CALL
Call Subroutine
3 3 3 3 3 3 3 3
Section
8.2
02
SRET
Subroutine Return
3 3 3 3 3 3 3 3
Section
8.3
03
IRET
Interrupt Return
3 3 3 3 3 3 3 3
Section
8.4
04
EI
Enable Interrupt
3 3 3 3 3 3 3 3
Section
8.5
05
DI
Disable Interrupt
3 3 3 3 3 3 3 3
Section
8.6
06
FEND
Main Routine Program End
3 3 3 3 3 3 3 3
Section
8.7
07
WDT
Watchdog Timer Refresh
3 3 3 3 3 3 3 3
Section
8.8
08
FOR
Start a FOR/NEXT Loop
3 3 3 3 3 3 3 3
Section
8.9
09
NEXT
End a FOR/NEXT Loop
3 3 3 3 3 3 3 3
Section
8.10
Move and Compare
10
CMP
Compare
3 3 3 3 3 3 3 3
Section
9.1
STL Applicable devices
RET
Pn
CJ
Pn
CALL
SRET
IRET
EI
DI
FEND
WDT
FOR
S
NEXT
CMP
S1 S2 D