Develop PLC Programming Example using Limit Switch according to the logic given below,
Start/Stop PB latched with memory B3:0/0. Timer off delay is connected to stop conveyor motor after 10s once the end of work is pressed.
B3:0/0 enabled to turn on conveyer motor (O:0/0 ). Limit switch 1 (I:0/0) is connected to counter which counts all incoming items. Normally open contact of the timer is connected in series to stop the conveyor motor.
Limit switch 2 (I:0/1) is to count bigger items and enabling pneumatic ram 1 (O:0/1) to push bigger item to a bigger box.
Limit switch 3 (I: 0/2) is to count bigger items and enabling pneumatic ram 2 (O:0/2) to push bigger item to a bigger box.
Comparator block is used to compare counter (C5:1) with 2 to change the bigger box and to reset the counter to set to count from first.
Comparator block is used to compare counter (C5:2) with 2 to change the smaller box and to reset the counter to set to count from first.
Reset operation automatically happen, when Counter(C5:0 ) preset value reaches accumulator value,
We can use this example to understand the programming logic in AB Programmable Logic Controllers (PLC).
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Desa moulding machine ka program banya 450 ka plc ladder logic bniya
Dears,
Using limit switch for a manual door how the calculate its opening and closing timing without the help of plc
can you please help to get a solution in this