The info you provide is very terse.
“SF6” is probably http://www.sanfranroaster.com/sf-6lb <http://www.sanfranroaster.com/sf-6lb>
And “Watlow" I assume to mean http://www.watlow.com/products/controllers/temperature.cfm <http://www.watlow.com/products/controllers/temperature.cfm>
My hunch is you maybe just connected the cables without making sure that variables like baud speed, even/uneven, parity, stopbits are all set exactly the same on both ends.
SF should be providing that info / assistance in their manuals / service desk.
Frans
> Op 29 sep. 2015, om 02:28 heeft Nate White <wcrcompany(a)gmail.com> het volgende geschreven:
>
> Which is Modbus Error: readfloat() Modbus Error: [connection] failed to connect [rtu baud[9600]] Aline 23885
>
> This is on an SF6 with Watlow. I'm sure this is a stupid question, my apologies.
>
> Nate
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Peter I subscribed you to the list as only members can post.
Currently it is not possible to call an external program to write data. However, I have put this on the list for one of the next versions. One could call an external "program" with two parameters transporting the ET and BT of the background profile per each sampling event. Would that help?
M
> On 29.01.2016, at 18:26, Peter Zechmeister <office(a)dunkelhell.at> wrote:
>
> Hello Marko,
>
> I am using Artisan on my DIY-4Kg roaster. The machine itself is controlled by an ATmega CPU and connected to the PC/Artisan via USB. I read the values for six curves (BT, ET, AirT, HeaterT, Airflow, DesiredHeaterT) by "Program, Program_34, Program_56.
> Due the box is electrically heated and there is some time lag, I have to think ahead a lot during roasting. So I am looking for a function, which is able also to write live curve values to an external program, which then would be able to communicate with the roaster.
> I am thinking of using the ET-curve in Designer/Profile as target-T for the heater. But I do not knew how to get Its values out. If there is a possibility, would you tell me please.
>
> Regards
> Peter
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Hello Marko,
I am using Artisan on my DIY-4Kg roaster. The machine itself is controlled
by an ATmega CPU and connected to the PC/Artisan via USB. I read the values
for six curves (BT, ET, AirT, HeaterT, Airflow, DesiredHeaterT) by
"Program, Program_34, Program_56.
Due the box is electrically heated and there is some time lag, I have to
think ahead a lot during roasting. So I am looking for a function, which is
able also to write live curve values to an external program, which then
would be able to communicate with the roaster.
I am thinking of using the ET-curve in Designer/Profile as target-T for the
heater. But I do not knew how to get Its values out. If there is a
possibility, would you tell me please.
Regards
Peter
Hello,
I put a post on home-barista.com to try and get a better understanding of
the additional TC4 channels. I received the following response, but no
further explanation when asked.
*The TC4 supports 4 thermocouple inputs. Channels 3+4 can be selected as
extra device type choosing "ArduinoTC4_34". The Artisan device type
"ArduinoTC4_56" selects Heater (OT1) and Fan (IO3) duty levels and
"ArduinoTC4_78" the PID SV (set value) as well as the TC4 internal
temperature.*
So currently I have an SSR connected to OT1 and I've selected channel 1
(MET Probe) in the PID setup. Now, given that TC4_56 is related to OT1 and
TC4_78 is related to the PID, how should I be using those channels? Can
anyone explain?
Thank you in advance,
Dustin
Dear Rodrigo,
what you see is an effect of the smoothing algorithm. If you would apply even more smoothing, you would end up with a straight line (maximal information loss). I suggest to choose a lower value for the "Smooth Curves" parameter (menu Tools >> Extras, tab Graph).
Best,
Marko
> On 26.01.2016, at 19:50, Rodrigo Ramos <rodrigo.ramos.1978(a)gmail.com> wrote:
>
> Hello Marko
>
> I've tried to find info about that, but either I failed in my research or this has never been discussed online.
>
> In order to perform some experiments with my roaster, I'm creating few "template" profiles, formatting them in CSV so it can be imported by Artisan, so I can later on use them as background profiles.
>
> Unfortunately I'm running into a strange issue. The initial portion of the chart, from charge until TP, for some reason is not being plotted right. As you can see in the attached image, the BT line y-value is incorrectly positioned in the chart. From that point on, until the end of the roast, everything looks fine.
>
> I'm also attaching the CSV file I'm using for this exercise.<SSFF design1_1.png>
>
> Is this something you're aware of?
>
> Thanks in advance!
>
> Rodrigo
> <SSFF design1.txt>
Hello Marko
I've tried to find info about that, but either I failed in my research or
this has never been discussed online.
In order to perform some experiments with my roaster, I'm creating few
"template" profiles, formatting them in CSV so it can be imported by
Artisan, so I can later on use them as background profiles.
Unfortunately I'm running into a strange issue. The initial portion of the
chart, from charge until TP, for some reason is not being plotted right. As
you can see in the attached image, the BT line y-value is incorrectly
positioned in the chart. From that point on, until the end of the roast,
everything looks fine.
I'm also attaching the CSV file I'm using for this exercise.[image: SSFF
design1_1.png]
Is this something you're aware of?
Thanks in advance!
Rodrigo
I had no clue what you were talking about, but Google explained it is this:
http://users.rcn.com/erics/Quest_Thermocouples_05.pdf
Probes for the Quest M3 roaster, by Eric Svendson: erics(a)erols.com
If you have all probes on room temp, with the roaster off, and one does not show the same temp, then that probe is not good.
Unless you have configured an offset for the reading in the interface or software, but you will know that yourself.
Have you contacted the dealer himself? Or do you have reason to think it is the Artisan software? The PDF does not show hos the thermocouples are connected to a device and how this communicates with the USB of your computer so you could find more answers there maybe.
Frans
> Op 25 jan. 2016, om 03:37 heeft Dustin Betterly <dustin(a)dustinbetterly.net> het volgende geschreven:
>
> I bought all three of Eric S' probes, have had good luck for the most part with the exception of the alternate bean probe. I'm getting temperatures significantly lower on that probe, roughly 100-150 degrees below the standard bean temp probe. Any thoughts on why this might be happening? Bad signal? Bad Probe?
>
> Thanks!
> Dustin
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I bought all three of Eric S' probes, have had good luck for the most part
with the exception of the alternate bean probe. I'm getting temperatures
significantly lower on that probe, roughly 100-150 degrees below the
standard bean temp probe. Any thoughts on why this might be happening?
Bad signal? Bad Probe?
Thanks!
Dustin
Hi Fiona,
could you be more precise on your setup (eg. which operating system you are on) and the exact issue you have?
Do you get any readings on the Artisan side? Did you install the FTDI driver (not needed on more modern OS X or Linux installations)? Where are you struggling?
Marko
PS: I subscribed you to the list and forwarded your post that ended up in the lists spam folder to the list. Note that only subscribers are allowed to post to this mailing list.
> On 18.01.2016, at 09:07, Fiona Bretherton <fionabretherton(a)gmail.com> wrote:
>
> Hi,
>
> We have just purchased a hottop coffee roast KN-8828B-2K+.
>
> We are struggling with the setup of this to work with our laptop.
>
> We have installed the artisan software and driver and seen a few blogs on the internet to help us with the setup - but still we can't seem to get the software to talk to the hottop to control it (temperatures, fan etc)
>
> Do you have a recommended step by step guide to help us with the setup of the hottop machine we have?
>
> Any information or guidance would be appreciated.
>
> Thank you for your help.
>
> Kind regards,
> Fiona.
>
>
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