5. SEQUENCE INSTRUCTIONS
5 − 22
MELSEC-A
(3) Program which resets the 100ms retentive timer and counter.
• Coding
0 LD X004
1 OUT T225 K18000
2 LD T225
3 OUT C23 K16
4 RST T225
7 LD C23
8 OUT Y055
9 LD X005
10 RST C23
13 END
()
()
()
T225 turns on after X4 has been
on for 30 minutes.
The number of ON times of T225
is counted.
When T225 has turned on, T225 is reset.
When C23 has counted up, Y55 turnes on.
When X5 turns on, C23 is reset.
X004
T225
C23
X005
K18000
T225
K16
C23
RST T225
RST C23
Y055
0
2
7
9