Beta 4 & Watlow PM6 w/ Modbus RTU
by Matthew Sewell
Hi all!
Thanks for developing Artisan! It's an amazing piece of software.
I am trying to configure a Watlow PM6 controller for Artisan Beta 4. I have limited PLC and controls knowledge, so please bear with me.
I have installed the requisite drivers for my 485 to usb converter. I am using RTD probes and can read the temperatures in the specified registers through modbus (Watlow modbus test program). I can configure and get Artisan to request the data from the Watlow registers and the Watlow communicates during each call for sample (at the correct intervals). Also, the Watlow is in Modbus mode, using the correct data map (map 2) and sends the data in lo-hi. Slaves are set to 1, reading from regsiters 360 and 450, baud rate set to 19200 and using the correct COM port (COM4 on my system).
I cannot get Artisan to display the temperatures read by the RTDs. It either displays nothing for both or seemingly random numbers which do not correlate. I'm not sure if there is an issue with my settings or if the Beta 4 has an issue with this specific controller?
Any help would be fantastic and much appreciated.
Best regards,Matt
6 years, 4 months
Re: [Artisan-user] Suggested Instrument
by zb
Hi.
Have you looked into getting an ungrounded probe? They are the best for noise problems but may add a small time delay.
http://www.omega.com/techref/themointro.html
You could get one with a stainless steel braided jacket that would prevent inductive noise. Then the jacket could be grounded to the same ground of the roaster.
People experiencing inductive noise usually use a naked thermocouple with the wire becoming a receiving antenna for all shorts of noises coming from nearby electric motors.
They may run about $40 each at Omega.com. I would get one with a long cable so as to keep the meter away from the roaster.
Rafael
--- On Fri, 5/31/13, John Brinkman <brinkman.john(a)gmail.com> wrote:
From: John Brinkman <brinkman.john(a)gmail.com>
Subject: [Artisan-user] Suggested Instrument
To: Artisan-User(a)lists.einfachkaffee.de
Date: Friday, May 31, 2013, 4:13 AM
Hi
I am considering using an Amprobe TMD-56 for collecting two temperature readings from my friends Barth roaster. We have been having issues with earth leakage on the roaster causing issues with the Arduino/TC4 system we currently have to the point that he is unable to use it.
Has anyone here got any experience with the TMD-56 and earth leakage? I am wondering how the USB connection works. We have a pair of Victor 56C DMM's that have an optical connection on the USB that isolates the DMM from the laptop and seems to sort out the issue. Any idea if the USB on the Amprobe is isolated as well? It doesn't say anything in the manual.
Thanks
JohnB
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6 years, 5 months
Suggested Instrument
by John Brinkman
Hi
I am considering using an Amprobe TMD-56 for collecting two temperature
readings from my friends Barth roaster. We have been having issues with
earth leakage on the roaster causing issues with the Arduino/TC4 system we
currently have to the point that he is unable to use it.
Has anyone here got any experience with the TMD-56 and earth leakage? I am
wondering how the USB connection works. We have a pair of Victor 56C DMM's
that have an optical connection on the USB that isolates the DMM from the
laptop and seems to sort out the issue. Any idea if the USB on the Amprobe
is isolated as well? It doesn't say anything in the manual.
Thanks
JohnB
6 years, 5 months
Mudbus Delta Dtb
by James Congdon
Do all the new fancy modbus features work with the delta dtb. It seems
everytime I change the pid from ascii to rtu and try setting it up for
modbus communication in artisan it refuses to work
-jim
Sent from my Windows Phone
6 years, 5 months
Re: [Artisan-user] [OT] Airflow measure
by Piet Dijk
Hello,
I have installed a Greisinger GMUD-MP-F-MR2 (range 0-20mb relative). http://www.greisinger.de/index.php?task=2 By measuring the relative air pressure between in the system you have a measurement of airflow. Drum should have a light underpressure (1-5 mbar) Relative cost effective ( around 250 euro) including analog output for data processing). Still in the commisioning phase expect in a 1-2 month time to share some experiences..
Airflow measurement by mechanical means in the airflow might prove costly because of the temperature range! But if you find a cost effective solution, would be very interesting.
Cheers,
Tj.P.
ps. underpressure is also a safety regarding regarding natural gas supply
----- Original Message -----
From: Rubens Gardelli <rubens.gardelli(a)yahoo.it>
To: "artisan-user(a)lists.einfachkaffee.de" <artisan-user(a)lists.einfachkaffee.de>
Cc:
Sent: Friday, May 24, 2013 10:09 AM
Subject: [Artisan-user] [OT] Airflow measure
Dear artisan users,
I would like your help: I'm looking for an instrument that is able to
measure airflow intensity/speed and display a digital value, placed in a
duct that is 8cm of diameter and where air is passing in a range of
temperatures between 50 and 300 Celsius.
I'm actually
using an Omega HH506RA multimeter.
Thank you very much for your suggestions.
--
Rubens Gardelli
Gardelli Coffee
via Balzella 28/A
47122 Forli FC Italy
www.gardellicoffee.com
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Artisan-User mailing list
Artisan-User(a)lists.einfachkaffee.de
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6 years, 5 months
[OT] Airflow measure
by Rubens Gardelli
Dear artisan users,
I would like your help: I'm looking for an instrument that is able to
measure airflow intensity/speed and display a digital value, placed in a
duct that is 8cm of diameter and where air is passing in a range of
temperatures between 50 and 300 Celsius.
I'm actually using an Omega HH506RA multimeter.
Thank you very much for your suggestions.
--
Rubens Gardelli
Gardelli Coffee
via Balzella 28/A
47122 Forli FC Italy
www.gardellicoffee.com
6 years, 5 months
MODBUS
by Lee McLaren
Thankyou for v0.6 RC2, I appreciate the enormous effort.
Would it be possible in the future to increase the number of channels
that MODBUS can read?
By the looks of things the current version can do channels 1,2,3 and 4.
Would it be possible to add an extra 2 or more channels?
I currently 'emulate' an Arduino TC4 but would prefer to use MODBUS due
to its standardisation and ease of bi directional communications.
many thanks
Lee
6 years, 6 months
Diedrich and Artisan
by chris holmes
Can anyone advise on the best method to attach artisan to a stock 2.5k
Diedrich? Would an additional probe need to be installed somewhere versus
using the existing one so that it can be plugged into a logger? Just
looking for the easiest and most affordable option ;) Thanks!
6 years, 6 months
Artisan RC2 released
by Marko Luther
Dear all,
we just uploaded the second release candidate of Artisan v0.6 to the Google Code repository at
<http://code.google.com/p/artisan/downloads/list>
For this release especially the Windows and Linux builds received some extra love. However, the biggest news is the extended localizations. Now you can use Artisan with an Arabic, Dutch, Japanese, Norsk and Greek UI. The support of some more languages is already underway. We like to thank Wa'il, Frans, Minoru, Runar and Savvas for this incredible work, translating the more than 1200 phrases, and the nice communications we had.
The list of changes w.r.t. RC1.
- adds translations for Arabic, Dutch, Japanese, Norsk and Greek
- adds full screen mode (via key f)
- fixes icons on Windows build
- fixes rendering of the event annotations (broken by RC1)
- improved Windows installer that includes the Microsoft Redistributable Package
- adds tiff, jpeg, and emf Windows image formats
- adds ET <-> BT swap configuration
- improves GTK support on Linux
- Modbus now respects timeout and slave id settings
I added two posts to the Artisan blog at <http://artisan-roasterscope.blogspot.de> entitled "More Modbus" and "Fighting Spikes". The first post explains the extended Modbus support, while the second one introduces the new spike filters that you requested.
We expect this RC2 to be close to the final v0.6 to be released later this month. As always, please report the issues you find and suggestions you have via this mailing list.
Best,
The Artisan team
6 years, 6 months
