STUDENT QUESTION: LADSIM Bytronic Industrial Control Trainer (ICT3)

Hi gclshortt,


I have not started yet.


I am in shock just looking at the problem question.


Thank you for taking the time to post those links.


That information and methodology is missing from my notes!


I will take the time to read the links then approach the question.


It is a beast of a question!
 
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It only looks like a beast because you are looking at the entire program. Breaking it out into small bits is just part of the process.

Regards,
Garry
 
Thank you for the excellent advice, gclshortt.


I split the program into five sections:


1. Turning on both conveyors.

2. Ring chute control.

3. Assembly area control.

4. ID complete and NOT complete assemblies.

5. Rejection of NOT complete assemblies.


I am confounded by points 4 and 5.




Starting on point 4: ID complete and NOT complete assemblies.


I need to identify three possibilities:


A. Complete assembly = ring ON peg.

B. NOT complete assembly = peg ONLY.

C. NOT complete assembly = ring ONLY.


The excercise states:



  • Use the Belt Peg Detect sensor IP8 and the Ring Assembled sensor IP3 to determine whether the component is a correctly assembled part.


  • Use the Component Detect sensor IP4 as an index to allow for multiple components on the belt conveyor.


  • Use the Reject Area sensor IP5 to detect when a part is at the reject area and determine from the data captured previously whether the component needs to be accepted or rejected. Use the Reject Solenoid OP3 to reject bad components off the conveyor.


Initially, I tried:


--| |5--|/|3--( )3


I.E. EVERYTHING is rejected UNLESS it is correctly assembled.



When implemented:


The Complete assembly items are not rejected and are counted.


HOWEVER, the NOT complete assembly items are not rejected either!
 
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I need to differentiate between:


A. Complete assembly = ring ON peg.

B. NOT complete assembly = peg ONLY.

C. NOT complete assembly = ring ONLY.


The notes also state:


The inductive and capacitive sensors IP8 and IP3 simultaneously detect the properties of an item.


IP8 detects metal and so is activated by either single pegs or assembled pegs.


IP3 detects the presence of an object adjacent to the sensor and is positioned in such a way that it only detects an assembled ring.


Further down the belt, the through-beam sensor IP4 senses any passing item.


I have developed the following rungs to differentiate and ID each one:




A. Complete assembly = ring ON peg.



--| |3--| |8--


B. NOT complete assembly = peg ONLY.



--| |8--


C. NOT complete assembly = ring ONLY.


--| |4--


A. REQUIRES ||3 and will automatically trigger ||8
B. REQUIRES ||8 BUT will not trigger ||3
C. REQUIRES ONLY ||4 i.e. will not trigger ||3 and ||8


I'm not sure how to implement these with XIC and XIO, etc. or even if this is the right approach.
 
Hi tragic,


The question has been asked before but with a different simulator.


The link giving context to this is at the top of the thread.


Crack on with another thread :)
 

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