Skip to main content

Count the Number of Bottles in Packaging Carton PLC Logic

 Write a PLC program so that if the start PB is pressed the cartons conveyors runs until the cartons sensors senses the presence of a carton and then runs the bottles conveyors till the bottles sensors sense the presence of the bottles 5 times, then the bottles conveyor stops and the carton conveyors run till the presence of a new carton and then repeat the process of packing 5 bottles till the stop PB is pressed.

Count the Number of Bottles

Note the best practice to learn the PLC programming is to start writing the PLC program, take your time before you review the answer. 

Inputs & outputs
I0.0: Start Push Button (Normally open contact)

I0.1: Stop Push Button (Normally Closed Contact)

I0.2: photocell 01 (the photocell installed in the first conveyor).

I0.3: Photocell 02 (the photocell installed in the second conveyor).

Q0.0: conveyor 01.

Q0.1: Conveyor 02.

C1: Counter.

MW10: counter-current value.

M0.0: start-stop memory.

M1.0: carton full.

PLC Logic


Explanation
Network 01
When the Start PB has pressed, the set coil of the SR flip flop is energized and the start-stop memory bit is on.

If the stop PB is pressed, the reset coil of the SR flip flop is energized and the start-stop memory bit is off.

Network 02
When the start-stop memory bit positive edge is detected or when the carton box is full, the set bit in the SR flip flop is energized and runs conveyor 02.

When the stop PB is pressed or the positive edge of photocell 2 is energized the conveyor 02 is stopped.

Network 03
When the start-stop bit is on and the positive edge of photocell 02 is detected the set bit is energized and runs conveyor 01.

When the stop button is pressed or when the carton is full the reset bit is energized and stops conveyor 01.

Network 04
Photocell 01 increments the counts in the counter C01 by one.

The stop PB or the negative edge of the photocell 02 reset the counter’s counts to zero, to make sure when the full carton moves away from the photocell 02 the counter is reset to 0.

The counter’s counts are moved to MW10 counts memory.

When the counts memory MW10 is equal to 5 the carton full bit is energized.
Labels:

Comments

  1. JLS AutomationJuly 10, 2021 at 3:31 PM

    You have worked nicely with your insights that makes our work easy. The information you have provided is really factual and significant for us. Keep sharing these types of article, Thank you.Robotic Case Packaging Systems

    ReplyDelete
  2. NancyJanuary 9, 2023 at 12:59 PM

    If you don't do the packaging right, it can be a costly mistake. To do it right, hire a professional graphic designer or work with a marketing expert who knows how to package brands. PVC Cling Film

    ReplyDelete
  3. Dillin Automation SystemsNovember 21, 2024 at 1:25 AM

    You have given great content here.Air conveyors systems I am glad to discover this post as I found lots of valuable data in your article. Thanks for sharing an article like this.

    ReplyDelete
  4. Cutting Edge Packaging ProductsDecember 19, 2024 at 9:29 PM

    It is what I was looking for and is interesting. It is a consideration as well as a useful write-up for us. Thankful to you for sharing a post similar to this. lp mailers

    ReplyDelete

Post a Comment

Popular posts from this blog

Ferrules and Cross Ferruling

 Ferrules are identification labels provided for every wire terminations in an instrument, equipment, or electrical/instrumentation control panels. These tube-shaped sleeves can be inserted easily on each individual wire in a multi-core cable. In earlier days fixed digits/letters are used as ferrules, but now Instrumentation engineers/technicians prints out desired ferrules by using a ferrule printing machine. Typical Ferrule The numbers/ letters on the ferrules will be given as per the approved electrical hook up or loop diagrams. This helps technicians to easily identify a particular loop/wiring from a series of terminal blocks and to troubleshoot the desired terminal connection. Separate numbers on the ferrules distinguish the positive and negative polarities of wires, thus ensure the polarity protection of the instrument. Cross Ferruling  As a wire is connected on its both ends, it is quite useful to use a cross reference method for wire identification. Unlike normal ferru...
1 comment
Read more

What is a Torbar? – Averaging Pitot Tubes

 The Torbar is employed for flow measurement of liquids, gases, or steam in circular, square, or rectangular section ducts for large flow rates. The Torbar is an insertion type multi-port self-averaging primary sensor for flow measurement. Torbar TORBAR is a set of Pitot tubes mounted on a bar across the pipeline with no moving parts. An averaging Pitot tube is a technology, while TORBAR is a manufacturing brand name. There are several brands available in the market with VERABAR, ANNUBAR, etc. Averaging Pitot Tube Principle Purpose Averaging Pitot tube can be employed when the average velocity of the flow profile, rather than the velocity in a specific point in the cross-section is desired. Averaging Pitot Tubes Principle It measures the differential pressure between the static pressure tap and the tap of full pressure of a stream. Thus such magnitude of differential pressure is directly proportional to the square of the flow rate. Working The TORBAR is designed in such a way that ...
7 comments
Read more

Dissolved Oxygen Analyzer Working Principle

 What is dissolved oxygen ? Dissolved oxygen refers to oxygen dissolved in water. Its concentration is expressed as the amount of oxygen per unit volume and the unit is mg/L. Biologically, oxygen is an essential element for respiration of underwater life and also acts as a chemical oxidizer. The solubility of oxygen in water is affected by water temperature, salinity, barometric pressure, etc. and decreases as water temperature rises. Measurement of dissolved oxygen by the membrane electrode method The membrane electrode method measures a diffusion current or reduction current generated by the concentration of dissolved oxygen or partial pressure of oxygen to obtain the concentration of dissolved oxygen. This method is not affected by the pH value of water being measured, oxidation and reduction substances, color, turbidity, etc. and the measurement method offers good reproducibility. When a sensor is inserted into water, an air layer forms on the membrane (Teflon membrane). The ox...
1 comment
Read more