Mitsubishi Electric MELSEC-Q/L - Program Branch Instructions

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2 INSTRUCTION TABLES
2.4 Basic Instructions
Program branch instructions
Program execution control instructions
I/O refresh instructions
Category Instruction
symbol
Symbol Processing details Execution
condition
Number
of basic
steps
Subset Reference
Jump CJ • Jumps to Pn when input
conditions are met.
2 ● Page 321
SCJ • Jumps to Pn from the scan
after the meeting of input
condition.
2 ●
JMP • Jumps unconditionally to Pn. 2 ●
GOEND • Jumps to END instruction
when input condition is met.
1  Page 324
Category Instruction
symbol
Symbol Processing details Execution
condition
Number
of basic
steps
Subset Reference
Disable
interrupts
DI • Prohibits the running of an
interrupt program.
1  Page 325
Enable
interrupts
EI • Resets interrupt program
execution prohibition.
1 
Interrupt
disable/
enable
setting
IMASK • Inhibits or permits interrupts
for each interrupt program.
2 
Return IRET • Returns to sequence
program from an interrupt
program.
1  Page 331
Category Instruction
symbol
Symbol Processing details Execution
condition
Number
of basic
steps
Subset Reference
I/O Refresh RFS • Refreshes the relevant I/O
area during scan.
3  Page 332
RFSP
CJ Pn
SCJ Pn
JMP Pn
GOEND
DI
EI
IMASK S
IRET
RFS nS
RFSP nS