Problem
- Thread starter ross.s
- Start date
Martin T.
Member
ross.s said:
Easy, use a maintained pushbutton....
Or search this site for flip flop.
elevmike
Member
Flip flop - toggle
Ross,
This is a very common student question. And one of the 1st exercises. The idea is for you to do some thinking on yor own. What we as is that you give it a try and post your answer, then we will provide assitance and comments. Otherwise it'll be like doing last weeks crossword puzzle with the answers to it in this weeks paper...What's the point??
Now the usual response to this type of suggestion is to go elsware to find the answer..let's see if your different...
Mike.
Ross,
This is a very common student question. And one of the 1st exercises. The idea is for you to do some thinking on yor own. What we as is that you give it a try and post your answer, then we will provide assitance and comments. Otherwise it'll be like doing last weeks crossword puzzle with the answers to it in this weeks paper...What's the point??
Now the usual response to this type of suggestion is to go elsware to find the answer..let's see if your different...
Mike.
GregPLC
Member
cheating
I also think it's okay for a student to copy answers, speeds up classroom evolution a little.....it weeds out the bad ones in the first semester, leaving more room for the students who really want to learn.
I also think it's okay for a student to copy answers, speeds up classroom evolution a little.....it weeds out the bad ones in the first semester, leaving more room for the students who really want to learn.
GregPLC
Member
They need to do a little more upfront thinking for themselves...
Martin T.
Member
Re: Re: cheating
It's not re-inventing everything!!!! It's called learning!!!!
If they can't learn the basics like a simple flip flop toggle ladder,
then how are they going to understand something later that they have copied that's a lot more difficult???????
Polle said:
It's not re-inventing everything!!!! It's called learning!!!!
If they can't learn the basics like a simple flip flop toggle ladder,
then how are they going to understand something later that they have copied that's a lot more difficult???????
Martin T.
Member
It's about like anything else, there's more than one way to do it.
elevmike
Member
In my opinion the real prupose of higher education is not to memorize but to learn to think. I think it was Henry Ford I that had two great quotes I always liked.
1) "Wheather or not you think you can do something, you're probably right."
2) "The most diffuclt type of work is thinking."
I once had a quarter term test in a high school geometry class. One question: "Provide the equation for how many diagonals can be placed in any given polygon.
The issue hadnt been yet covered. The instructor later explained his purpose was to make us think, and not memorize. I provided the equation and the proof just as the timer went off, and the six studenents that did were moved to a different class...
1) "Wheather or not you think you can do something, you're probably right."
2) "The most diffuclt type of work is thinking."
I once had a quarter term test in a high school geometry class. One question: "Provide the equation for how many diagonals can be placed in any given polygon.
The issue hadnt been yet covered. The instructor later explained his purpose was to make us think, and not memorize. I provided the equation and the proof just as the timer went off, and the six studenents that did were moved to a different class...CaseyK
Member
RANT ON!
My lord, what are they teaching, or do they teach anything!
25 years ago, I thought about getting a federal grant to teach drafting. I ran across BSEE's who graduated ten years ago or more, that had no drafting, and couldn't read a schematic or even a blueprint for a mounting bracket.
I guess they just put questions on the black board, and the students self teach themselfs.
Figuring most students never find this site......
No I can start to understand when I go into a plant or get a frantic phone call, some of the really strange stupf I come across.
RANT OFF?
regards.....casey
My lord, what are they teaching, or do they teach anything!
25 years ago, I thought about getting a federal grant to teach drafting. I ran across BSEE's who graduated ten years ago or more, that had no drafting, and couldn't read a schematic or even a blueprint for a mounting bracket.
I guess they just put questions on the black board, and the students self teach themselfs.
Figuring most students never find this site......
No I can start to understand when I go into a plant or get a frantic phone call, some of the really strange stupf I come across.
RANT OFF?
regards.....casey
Last edited:
rsdoran
Lifetime Supporting Member
Regardless of what instructions in a plc are used its ALWAYS going to be a flip flop circuit.
Code:
| %I001 %M001
|-------] [----------------------------------------------(^)--
|
|
|
|
| %M001 %Q001 %Q001
+--] [-----]/[--+-----------------------------------------( )--
| |
|%Q0001 %M0001 |
+--] [-----]/[--+
|This is a GE (and other brand) example, the %M001 bit is technically a one shot (positive transition coil) which will fire for only one scan.
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