FUNCTION
FBD:
5
．
Counting Control for Packing Machine
Requirement
：
1) The packing cycle is that it begins counting the finished products in the assemble
line, when the counting value reaches 12, it proceeds packing operation which
takes 5 seconds. After finished, it begins a new cycle.
2) It simultaneous counts the finished packs of product.
3) In case of power failure, the counting remains unchanged.
Analysis
：
1)
A transducer is employed to produce the pulse signal when the transducer
detects the arrival of a product. A counter generates an output when the counting
-
13
-
