316
In the following BLOCK, we add two impulse instructions:
9-3-3
.
Wait Item
‘Wait Item’: to wait coil flag or timer bit.
Open ‘Wait Item’ in the same way. There are two waiting modes: flag bit and timer wait.
(A) Flag bit
SEM corresponding ladder diagram is as below:
M30
POST SEM0
(B) Timer wait
(C) Corresponding ladder diagram: