Download Q-series basic Course(for GX Developer)

Jump
Instruction
symbol
Symbol
Processing details
CJ
CJ
Pn
SCJ
SCJ
Pn
JMP
JMP
Pn
GOEND
Execution
condition
• Jumps to Pn when input conditions are met
2
• Jumps to Pn from the scan after the meeting
2
of input condition
• Jumps unconditionally to Pn
2
• Jumps to END instruction when input
GOEND
Subset
Category
Number of
basic steps
(5) Program branch instructions
1
condition is met
Disable
interrupts
Enable
interrupts
Instruction
symbol
Symbol
Processing details
DI
DI
EI
EI
Execution
condition
• Prohibits the running of an interrupt program
Subset
Category
Number of
basic steps
(6) Program execution control instructions
1
• Resets interrupt program execution
1
prohibition
Interrupt
disable/
enable
IMASK
IMASK
S
• Prohibits or permits interrupts for each
2
interrupt program
setting
Return
IRET
IRET
• Returns to sequence program following an
1
interrupt program
I/O
refresh
Instruction
symbol
RFS
Symbol
RFS
Processing details
D n
• Refreshes the relevant I/O area during scan
App - 22
Execution
condition
3
Subset
Category
Number of
basic steps
(7) I/O refresh instructions