Mitsubishi Electric 700 Series Programming Manual page 133

Sequence Instructions
2) Program that resets the data register contents to 0.
3) Program that resets the 100ms retentive timer and counter.
・ Coding
128
Coding
Stores X10 to 1F contents into D8 when X0
turns on.
Resets D8 contents to 0 when X5 turns on.
When T5 is set as retentive timer, T5 turns on
when ON period of X4 reaches 30 minutes.
Counts the number of times T5 turned on.
Resets T5 when T5 turns on.
When C0 stops counting, Y5 turns on.
When X5 turns on, C0 is reset.