FHT8W

[Guest]

Originally posted by: <email address deleted>

All,

I read that FHT8W is compatible with FHEM / CUL, and basically act
very similar to FHT8V with a similar instruction set.
I just saw in the device chassis that it's a RX/TX device, so seems to
be bi-directional.

It boosted my imaginaries
Do any of you know that
1., Is it possible to get the valve opening values in percentage via
FHEM / CUL through the FHT8W? (Assumed:Yes)
2., is it possible to set the valve opening values in percentage via
FHEM / CUL through the FHT8W? (Assumed: No)

if (2) would work out-of-the-box it would simplify my life a lot.

Please confirm these based on your personal experience.

Thank you all for your replies in advance and have a nice weekend to
everyone.

Szabi

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[Oskar]

                                                     

On 12 Nov., 16:45, Szabolcs Hodosi wrote:
> All,
>
> I read that FHT8W is compatible with FHEM / CUL, and basically act
> very similar to FHT8V with a similar instruction set.
Where did you read that? It is very different!
> I just saw in the device chassis that it's a RX/TX device, so seems to
> be bi-directional.
Ist is not. It receives Fht80b signalling to fht8v. And it can trigger
an FS20 device.
> It boosted my imaginaries
> Do any of you know that
> 1., Is it possible to get the valve opening values in percentage via
> FHEM / CUL through the FHT8W? (Assumed:Yes)
No.
> 2., is it possible to set the valve opening values in percentage via
> FHEM / CUL through the FHT8W? (Assumed: No)
No.
> if (2) would work out-of-the-box it would simplify my life a lot.

No offense intended, but what about Reading the Manual befördert
asking?

> Please confirm these based on your personal experience.

Done.

> Thank you all for your replies in advance and have a nice weekend to
> everyone.

The Same to you
Cheers
Oskar

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[Guest]

Originally posted by: <email address deleted>

Oscar,

i've read the manual, but as every ELV manual (like I experienced with
FHT8R) does not cover every use case.
User manuals describes the critical path, the most important things only.

I've read it here:
"Principle be used, *the instruction set is similar to the FHT8v*,
seeFHT 8V respond directly
<http://fhemwiki.de/index.php/FHT_8v_direkt_ansprechen>."

Source: The FHEM Wiki: http://fhemwiki.de/index.php/FHT8w

I was in believe it's bi-directoinal since:
1., FHT8R is send only, on the rear of the production I saw a
"TX-868...." - T=transmit
2., FHT8V is receive only, on the rear of the production I saw a
"RX-868...." - R=receive
3., FHT80B is bidirectional, I found "RX..." and "TX...." on the read on
Google photos (I haven't got one yet)
--> This seemed logical that if FHT8W also have "RX" and "TX" on the top
cover it means also bidirectional.

Thank you for your understanding, and the prompt answer.

2011.11.12. 17:35 keltezéssel, oskar írta:
>
> On 12 Nov., 16:45, Szabolcs Hodosi  wrote:
>> All,
>>
>> I read that FHT8W is compatible with FHEM / CUL, and basically act
>> very similar to FHT8V with a similar instruction set.
> Where did you read that? It is very different!
>> I just saw in the device chassis that it's a RX/TX device, so seems to
>> be bi-directional.
> Ist is not. It receives Fht80b signalling to fht8v. And it can trigger
> an FS20 device.
>> It boosted my imaginaries
>> Do any of you know that
>> 1., Is it possible to get the valve opening values in percentage via
>> FHEM / CUL through the FHT8W? (Assumed:Yes)
> No.
>> 2., is it possible to set the valve opening values in percentage via
>> FHEM / CUL through the FHT8W? (Assumed: No)
> No.
>> if (2) would work out-of-the-box it would simplify my life a lot.
> No offense intended, but what about Reading the Manual befördert
> asking?
>
>> Please confirm these based on your personal experience.
> Done.
>
>> Thank you all for your replies in advance and have a nice weekend to
>> everyone.
> The Same to you
> Cheers
> Oskar
>

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[Zrrronggg!]

                                                     

The FHT8W is checking the state of your FHT8Vs. If all of them are
above or below a threshold value (f.e. all are lower then 5% open),
the FHT8W sends an FS20 event. Therefore it must communicate with the
FHT8V to get the valve opening percentage. So it RECEIVES FHT8v states
and SENDS FS20 events. Thats all.
So yeah... it IS bi-directional to some extend, but ...

Basic idea is to shut down a heating / blower if all in your house
FHT8V are closed.

As this can be done with FHEM directly (FHEM knows all FHT8V states),
there is no real need to use a FHT8W in a FHEM environment.

Ways of doing this have been recently discussed in this (German)
thread:
http://groups.google.com/group/fhem-users/browse_thread/thread/90465d2ac505677b#




On 12 Nov., 21:34, Hodosi Szabolcs wrote:
> Oscar,
>
> i've read the manual, but as every ELV manual (like I experienced with
> FHT8R) does not cover every use case.
> User manuals describes the critical path, the most important things only.
>
> I've read it here:
> "Principle be used, *the instruction set is similar to the FHT8v*,
> seeFHT 8V respond directly
> <http://fhemwiki.de/index.php/FHT_8v_direkt_ansprechen>."
>
> Source: The FHEM Wiki:http://fhemwiki.de/index.php/FHT8w
>
> I was in believe it's bi-directoinal since:
> 1., FHT8R is send only, on the rear of the production I saw a
> "TX-868...." - T=transmit
> 2., FHT8V is receive only, on the rear of the production I saw a
> "RX-868...." - R=receive
> 3., FHT80B is bidirectional, I found "RX..." and "TX...." on the read on
> Google photos (I haven't got one yet)
> --> This seemed logical that if FHT8W also have "RX" and "TX" on the top
> cover it means also bidirectional.
>
> Thank you for your understanding, and the prompt answer.
>
> 2011.11.12. 17:35 keltez�ssel, oskar �rta:
>
>
>
>
>
>
>
>
>
> > On 12 Nov., 16:45, Szabolcs Hodosi  wrote:
> >> All,
>
> >> I read that FHT8W is compatible with FHEM / CUL, and basically act
> >> very similar to FHT8V with a similar instruction set.
> > Where did you read that? It is very different!
> >> I just saw in the device chassis that it's a RX/TX device, so seems to
> >> be bi-directional.
> > Ist is not. It receives Fht80b signalling to fht8v. And it can trigger
> > an FS20 device.
> >> It boosted my imaginaries
> >> Do any of you know that
> >> 1., Is it possible to get the valve opening values in percentage via
> >> FHEM / CUL through the FHT8W? (Assumed:Yes)
> > No.
> >> 2., is it possible to set the valve opening values in percentage via
> >> FHEM / CUL through the FHT8W? (Assumed: No)
> > No.
> >> if (2) would work out-of-the-box it would simplify my life a lot.
> > No offense intended, but what about Reading the Manual bef�rdert
> > asking?
>
> >> Please confirm these based on your personal experience.
> > Done.
>
> >> Thank you all for your replies in advance and have a nice weekend to
> >> everyone.
> > The Same to you
> > Cheers
> > Oskar

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[Zrrronggg!]

                                                     

btw: I wrote the original fhemwiki article, but the part "der
Befehlssatz ähnelt dem FHT8v, siehe FHT 8v direkt ansprechen." was
added by somebody else. I always wondered what that actually should
mean, as my understanding is, that you cannot "control" the FHT8W
directly via FHT commands / protocolls. It is actually a FS20 sensor/
sender, not triggert by movement, temp, light or other common FS20
sensor events, but by the collected FHT8v information.

On 12 Nov., 21:34, Hodosi Szabolcs wrote:
> Oscar,
>
> i've read the manual, but as every ELV manual (like I experienced with
> FHT8R) does not cover every use case.
> User manuals describes the critical path, the most important things only.
>
> I've read it here:
> "Principle be used, *the instruction set is similar to the FHT8v*,
> seeFHT 8V respond directly
> <http://fhemwiki.de/index.php/FHT_8v_direkt_ansprechen>."
>
> Source: The FHEM Wiki:http://fhemwiki.de/index.php/FHT8w
>
> I was in believe it's bi-directoinal since:
> 1., FHT8R is send only, on the rear of the production I saw a
> "TX-868...." - T=transmit
> 2., FHT8V is receive only, on the rear of the production I saw a
> "RX-868...." - R=receive
> 3., FHT80B is bidirectional, I found "RX..." and "TX...." on the read on
> Google photos (I haven't got one yet)
> --> This seemed logical that if FHT8W also have "RX" and "TX" on the top
> cover it means also bidirectional.
>
> Thank you for your understanding, and the prompt answer.
>
> 2011.11.12. 17:35 keltez�ssel, oskar �rta:
>
>
>
>
>
>
>
>
>
> > On 12 Nov., 16:45, Szabolcs Hodosi  wrote:
> >> All,
>
> >> I read that FHT8W is compatible with FHEM / CUL, and basically act
> >> very similar to FHT8V with a similar instruction set.
> > Where did you read that? It is very different!
> >> I just saw in the device chassis that it's a RX/TX device, so seems to
> >> be bi-directional.
> > Ist is not. It receives Fht80b signalling to fht8v. And it can trigger
> > an FS20 device.
> >> It boosted my imaginaries
> >> Do any of you know that
> >> 1., Is it possible to get the valve opening values in percentage via
> >> FHEM / CUL through the FHT8W? (Assumed:Yes)
> > No.
> >> 2., is it possible to set the valve opening values in percentage via
> >> FHEM / CUL through the FHT8W? (Assumed: No)
> > No.
> >> if (2) would work out-of-the-box it would simplify my life a lot.
> > No offense intended, but what about Reading the Manual bef�rdert
> > asking?
>
> >> Please confirm these based on your personal experience.
> > Done.
>
> >> Thank you all for your replies in advance and have a nice weekend to
> >> everyone.
> > The Same to you
> > Cheers
> > Oskar

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[Guest]

Originally posted by: <email address deleted>

Zrrronggg,

Thank you for sort this out this discussion.
I suspect "checking the state of your FHT8V" is done by simple listening
to radio communication and grab then messages by house code (device code?).
It triggers my boiler when the value gets over the treshold, so besides
it's sending an FS20 event too.. That's really cool, I hope I can grab it.
It's good to know when the heating is really take place and when it's not.

I know that due to FHEM logging its own executed statements it can track
the backlog to figure out the valve opening percentages (since no
feedback from the FHT8V, FS20 is just a luckily-hoping-it-will-be-good
type protocol). Not a big deal.

What drove my mind was that this can make me possible to read out if an
actuator command is really took place, or just expected to, but due to
this assumed listening logic, it wasn't a good idea of me.

Thinking all over these again cleared out that I can't get any benefit
from it really.

Unfortunately I can't speak german a word, I try to interpret them with
Google Translator, but it create such a smashed sentence heap I can
really don't understand....

Basically that's the particular reason I'm asking you guys here.

Oscar: Due to Zrrronggg comments it seemed the my brainstorm wasn't
wanton, at it was really pleased to see intelligent and helpful people
here like Zrrronggg are around here.

Thank you again, Zrrronggg, I can go further in my home project based on
your brain share. Was extremely helpful.


2011.11.12. 22:03 keltezéssel, Zrrronggg! írta:
> The FHT8W is checking the state of your FHT8Vs. If all of them are
> above or below a threshold value (f.e. all are lower then 5% open),
> the FHT8W sends an FS20 event. Therefore it must communicate with the
> FHT8V to get the valve opening percentage. So it RECEIVES FHT8v states
> and SENDS FS20 events. Thats all.
> So yeah... it IS bi-directional to some extend, but ...
>
> Basic idea is to shut down a heating / blower if all in your house
> FHT8V are closed.
>
> As this can be done with FHEM directly (FHEM knows all FHT8V states),
> there is no real need to use a FHT8W in a FHEM environment.
>
> Ways of doing this have been recently discussed in this (German)
> thread:
> http://groups.google.com/group/fhem-users/browse_thread/thread/90465d2ac505677b#
>
>
>
>
> On 12 Nov., 21:34, Hodosi Szabolcs  wrote:
>> Oscar,
>>
>> i've read the manual, but as every ELV manual (like I experienced with
>> FHT8R) does not cover every use case.
>> User manuals describes the critical path, the most important things only.
>>
>> I've read it here:
>> "Principle be used, *the instruction set is similar to the FHT8v*,
>> seeFHT 8V respond directly
>> <http://fhemwiki.de/index.php/FHT_8v_direkt_ansprechen>."
>>
>> Source: The FHEM Wiki:http://fhemwiki.de/index.php/FHT8w
>>
>> I was in believe it's bi-directoinal since:
>> 1., FHT8R is send only, on the rear of the production I saw a
>> "TX-868...." - T=transmit
>> 2., FHT8V is receive only, on the rear of the production I saw a
>> "RX-868...." - R=receive
>> 3., FHT80B is bidirectional, I found "RX..." and "TX...." on the read on
>> Google photos (I haven't got one yet)
>> -->  This seemed logical that if FHT8W also have "RX" and "TX" on the top
>> cover it means also bidirectional.
>>
>> Thank you for your understanding, and the prompt answer.
>>
>> 2011.11.12. 17:35 keltez�ssel, oskar �rta:
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>> On 12 Nov., 16:45, Szabolcs Hodosi    wrote:
>>>> All,
>>>> I read that FHT8W is compatible with FHEM / CUL, and basically act
>>>> very similar to FHT8V with a similar instruction set.
>>> Where did you read that? It is very different!
>>>> I just saw in the device chassis that it's a RX/TX device, so seems to
>>>> be bi-directional.
>>> Ist is not. It receives Fht80b signalling to fht8v. And it can trigger
>>> an FS20 device.
>>>> It boosted my imaginaries
>>>> Do any of you know that
>>>> 1., Is it possible to get the valve opening values in percentage via
>>>> FHEM / CUL through the FHT8W? (Assumed:Yes)
>>> No.
>>>> 2., is it possible to set the valve opening values in percentage via
>>>> FHEM / CUL through the FHT8W? (Assumed: No)
>>> No.
>>>> if (2) would work out-of-the-box it would simplify my life a lot.
>>> No offense intended, but what about Reading the Manual bef�rdert
>>> asking?
>>>> Please confirm these based on your personal experience.
>>> Done.
>>>> Thank you all for your replies in advance and have a nice weekend to
>>>> everyone.
>>> The Same to you
>>> Cheers
>>> Oskar

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[Oskar]

                                                     

Am 12.11.2011 um 22:03 schrieb Zrrronggg!:

> The FHT8W is checking the state of your FHT8Vs. If all of them are
> above or below a threshold value (f.e. all are lower then 5% open),
> the FHT8W sends an FS20 event. Therefore it must communicate with the
> FHT8V to get the valve opening percentage. So it RECEIVES FHT8v states
> and SENDS FS20 events. Thats all.

Even though it does not change anything effectively, it receives commands sent to FHT8V's it has been programmed to listen to.

> So yeah... it IS bi-directional to some extend, but ...
>
> Basic idea is to shut down a heating / blower if all in your house
> FHT8V are closed.
>
> As this can be done with FHEM directly (FHEM knows all FHT8V states),
> there is no real need to use a FHT8W in a FHEM environment.

apart from having a backup plan when your fhem installation is not working
> Ways of doing this have been recently discussed in this (German)
> thread:
> http://groups.google.com/group/fhem-users/browse_thread/thread/90465d2ac505677b#
>
>
>
>
> On 12 Nov., 21:34, Hodosi Szabolcs wrote:
>> Oscar,
>>
>> i've read the manual, but as every ELV manual (like I experienced with
>> FHT8R) does not cover every use case.
>> User manuals describes the critical path, the most important things only.

Having checked now that you mentioned it, it seems to me the manual provided is pretty explicit, though not as extensive as the one delivered with the do-it-yourself-kit.
>> I've read it here:
>> "Principle be used, *the instruction set is similar to the FHT8v*,
>> seeFHT 8V respond directly
>> <http://fhemwiki.de/index.php/FHT_8v_direkt_ansprechen>.

That should be changed.

Cheers
   Oskar

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