Panasonic FP-XH M8N16PD User Manual page 352

Instruction Reference
 Comparison of RST instruction and DRST instruction
• DRST instruction is more suitable for requirement for high-speed response than RST
instruction.
＜For RST instruction＞
●Ladder diagram
R0
●Time chart
R0
Y0
External input
18-24
n-1 scanning
Execute RST Y0
Y0
<RST>
n scanning n+1 scanning