Introduction to a detailed example. Schneider Electric Software PLC Application-Specific Functions, Electronic cam module, Junior/Pro, 4.5, PL7 Junior/Pro - Premium PLCs Electronic cam module TSXCCY1128 - Application implementation
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Examples
Introduction to a detailed example
General An automatic device controls the filling and storage of boxes of medicine. During filling, each box is wedged into a mechanical stop. Once they have been filled, the boxes are stored in lots of 5. Each lot is then sent to the storage area.
Illustration of automatic device
Note: This example is given for information only and is not an exact representation of an industrial application.
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TLX DS 57 PL7 xx
Cycle 1
Cycle 2
Cycle 3
Cycle 4
Description of the cycles
Examples
The machine is divided into 6 cycles of 1024 pulses: l l
5 filling cycles consisting of depositing the medicine into the box,
1 storage and grouping cycle.
The parts counter counts the parts to be grouped for entry to the storage area. If the storage area is full, grouping is transferred.
The application program manages the transient machine loading and unloading phases. During loading, the stations are activated one at a time according to the cycle number.
When the machine is fully loaded, all stations work in parallel during each cycle.
Filling the machine track 0 track 1 station 1 station 2 track 2 station 3 track 3 station 4 track 4 station 5 forward motion of the belt
Clearing track 5 station 6 track 6 station 7
Cycle 5
Cycle 6
5 times...
... parts counter increment
Grouping
Stations 1 to 5 are controlled by the outputs of tracks 0 to 4 and only have one output per cycle (1 cam). Track 5 performs operations on the indexer for station 6, track 6 performs operations on the grouping actuator at station 7.
TLX DS 57 PL7 xx
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