intelligent washing machine PLC-based

[mian]

I have a final year project to make "intelligent washing machine PLC-based" so I need help in STL programming.

 

[Lancie1]

Did you search this site for "washing machine"? There have been several programs posted over the years for washing machines.

http://www.plctalk.net/qanda/search.php?searchid=3737796

 

[Ronnie Sullivan]

STL in Mitsubishi programming?

 

[mian]

yes Ronnie Sullivan

 

[mian]

STL in Mitsubishi programming?

yes STL in mitsubishi

 

[Ronnie Sullivan]

And what help do you need?

You'll have to be more precise. I cannot know at what point you need help.

Explain more please. I am well versed in the do's and don'ts with Mitsubishi STL programming.

 

[shooter]

ronnie dont help him too much please as he has to do his exam.

 

[mian]

Ronnie
now I have done STL
but I got stuck in making ladder logic for washing machine
can you plz help me in programming
or give me any link in which i can understand about STL programming for washing machine
i have to program in such a way that
wash
rinse
spin
dry
stop
these are the main functions
and in this i have to show different functions according to time setting like i have to function in such a way that for cotton cloth motor rotate for 50sec and for wollen motor rotate for 70 sec and in this way i have to show nearly 5 functions

 

[Ronnie Sullivan]

You are fairly new to these forums and so I will inform you - we do not do your project/homework for you.
However we will always help you through your problems. (it's quid pro quo)

For this, you have to show us how far you have got and what you are stuck with.

I'll run some basics of STL programming with Mitsubishi

STL is a program within a program
It is used for moving from one stage to the next in sequence.
Only the 'active' step is scanned in the plc program. (all the inactive steps are ignored)
To start the first stage (or step) you have to initialize it

--| M0 |--------------------------[SET S20]

You then have to tell the plc that all that follows this next line is part of step 1 (or stage 1 whichever you prefer)

----------------------------[STL S20]

You put all your first step instructions (ladder) here
(in the case of a washing machine it is usually the wash settings you require)

Something like
--| X1 |----------------------[SET S30] SELECT COLD WASH
--| X2 |----------------------[SET S40] SELECT WARM WASH

The next step is like this

----------------------------[STL S30] When the STL program jumps from S20 to S30 (or S40) - S20 is now ignored automatically.

When you have written all you stages (or steps) you put the line

------------------------------------[RET] to signify this is the end of the stage programming

 

[mian]

thanks ronnie
the thing is i am totally new in this programming
i donot know that how to start the logic and how to prgrame by using timmer and delays etc i just need a start or any demo programe in which i can understand how to set a logic
i got knowledge about small programs but in this i have to use timers and other things which i dont know how to set in logic so plz help me or give me any other programe of any other machine through which i can understand about mcreating logic
it is not my exam it is my one year project
which i have to complete before april 2015

 

[boneless]

Important thing to begin with is to write down everything you know and need. Especially when dealing with projects like these. Look at a older machine and you will notice it is a clock ticking, switching on and off individual tasks. This is a state-machine, and is very easy to draw. From there you start programming, you got plenty of time, so begin simple:

I push start button.
Light comes on & timer started.
Timer runs for x time.
Light comes off.


Keep It Simple Stupid

 

[el greco]

take a look here for more help http://www.easyveep.com/modules.php?akt_modul=4&akt_Lang=2