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PostPosted: Wed 6. Oct 2010, 20:05 
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Joined: Tue 21. Sep 2010, 14:48
Posts: 4
Hi all,

I have some bad news. I was just playing around with homeVisu and my 1141 interface, when it suddenly stopped working.

HomeVisu keeps sending 02 05 00 00 0A 00 00 03 signal to the interface, and I hear soft buzzing sound when sending that.

However, the interface does not respond to this call. No data is received at all from the interface...

What can I do? Is it broken?

Thanks,

Jan


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PostPosted: Wed 6. Oct 2010, 21:43 
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Joined: Tue 11. Aug 2009, 13:18
Posts: 175
Hi Jan,

have you reset interface - that means unplug interface?

It could also be that the inductor inside the interface going hot when you playing too much.
Just waiting a few minutes and try again!

Code:
02 05 00 00 0A 00 00 03
homeVisu only check if interface is connected and powered on.
This is the blink command send to 00 00.
This command will not reach any module, only receive the bus echo.
You can reduce check time at setup. Normal Check time is 45 s while idle.


PLCBUSguru

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PostPosted: Wed 6. Oct 2010, 23:28 
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Joined: Tue 21. Sep 2010, 14:48
Posts: 4
Thank you very much for the suggestion.

I have opened up the interface, and indeed, the internals were too hot to touch :o
Luckily, leaving the interface unplugged for about 1,5 hours solved the issues.

Is there a maximum number commands this unit can process?
Or maybe anything else I can do, except not playing to much :lol:

Again, vielen malen dank! ;)


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PostPosted: Mon 11. Apr 2011, 13:06 
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Joined: Sat 16. Oct 2010, 22:30
Posts: 22
Location: Poland
Have you found a solution to this problem? I have experienced the same issues. I have not been playing long (~30 minutes) so it's quite bad news...

Using it without the case helps? Maybe I should add something to cool it down (radiator/fan)?
Summer's coming... :(

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QmQ


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PostPosted: Sat 16. Apr 2011, 23:29 
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Joined: Sat 20. Nov 2010, 23:51
Posts: 25
I was thinking about adding a heat sink, but the plastic cover isn't good for that, and I have no expertise in making an alternative casing.
I'm thinking about active cooling now, be happy to share ideas if you got any.


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PostPosted: Sun 17. Apr 2011, 15:10 
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Joined: Sat 16. Oct 2010, 22:30
Posts: 22
Location: Poland
I have never unassembled the interface (so far). When I do I shall take a lot inside and check which part gets so hot. Maybe a simple, small fan would do the trick...

The simplest solution I see is to try it in a cold place. Bad luck is when I NEED it to be cold the weather is nice :) - but maybe at night... I however require a bit of knowledge before. Can I damage the interface by constantly sending commands? I don't know what the typical limit of commands per minute (before it gets too hot) is... And I'm a bit afraid to try it - I wouldn't like to burn my interface...

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QmQ


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PostPosted: Thu 16. Jun 2011, 10:47 
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Joined: Thu 16. Jun 2011, 10:11
Posts: 2
It's seem i have the same issue...
I look for this problem since month.
Already replace, the rs232 converter with one using FTDI chips.
change the usb cable with an armored on.
Be carefull to move away usb cable and power cable...

and definitively the interface work fine about 1 to 2 hours, and after probe(pulse) message are not receive.

My polling is set each 120 seconds.

I don't find any hot component in the interface, so can someone post a picture identifying the "defective" component ?


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PostPosted: Mon 18. Jul 2011, 07:35 
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Joined: Tue 11. Aug 2009, 13:18
Posts: 175
Enclosed the picture of a 1141 USB interface.
I have marked the inductor that will get hot after lot of traffic.


You do not have the required permissions to view the files attached to this post.

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PostPosted: Mon 18. Jul 2011, 08:57 
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Joined: Thu 16. Jun 2011, 10:11
Posts: 2
thank for you answer !

Since i have try several thinks :
-change the max232 by an new one.
-installing a fan

After those hack, the interface receive ack for a little more time (about a night) but when the temperature increase on the morning, it still stop working.

I was very boring , so I bought a new interface, but a rs232 version this time, right now this one work fine....but for how long time ???


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PostPosted: Wed 20. May 2015, 14:50 
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Joined: Tue 5. May 2015, 14:17
Posts: 5
PLCBUSguru wrote:
Code:
02 05 00 00 0A 00 00 03
homeVisu only check if interface is connected and powered on.
This is the blink command send to 00 00.
This command will not reach any module, only receive the bus echo.

PLCBUSguru


Does this mean you can't have any other module with the address A1? Is this address reserved for the 1141?

tsts


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