New subject: Phidget extra device

12 Oct 2019

      Dear Ben,

I can see from the screenshot that the 1048 got first attached but soon after again
detached. Thus Artisan cannot access it any longer. Attach and detach of modules is
handled by the Phidget driver. I can only guess that your USB connection is
"weak". So either the cable is rotten or you are working in a highly EMV spammed
environment. USB wires easily catch EMV and this breaks communication. I assume the
Phidget driver observes communication errors to the module and detaches it. Do you have
un-shielded motors running next to the TC or USB wires? The cause could also a low USB
voltage. You could try to put a powered USB hub inbetween the Phidget and your computer.
Note that this is only to check for the USB power situation as a powered USB hub introduce
quite some noise to the data lines via different grounding levels. Do you run your
computer from battery or powered?

All external to Artisan. You could try to set the main device to DUMMY (thus not
connecting the MODBUS part) and see if this improves the situation.  

M

...
  On 12. Oct 2019, at 13:14, Ben Greenwood
&lt;ben(a)cafetechnica.com.au&gt; wrote:

 Hi Marko, many thanks for the prompt response. yes i have the current v22 driver
installed, build 1.4

 when i open the phidget control panel (with artisan off since only one program can access
at a time) I can see the temperature read by channel 0, its a real reasonable number

 Thanks, 
 Ben 

 Cafetechnica

 219B Murray Street
 Hobart TAS 7000

 0408 802 585
 ben(a)cafetechnica.com.au

 On Sat, Oct 12, 2019 at 7:41 PM Marko Luther &lt;marko.luther(a)gmx.net&gt; wrote:
 Dear Ben,

  On 12. Oct 2019, at 08:48, Ben Greenwood via
Artisan-User &lt;artisan-user(a)lists.einfachkaffee.de&gt; wrote:

 Hi Everyone,
 I'm using Artisan with a 1Kg gas roaster that supplies ET/BT via modbus to one USB
port, which works great.  I'm trying to add a TC using a Phidget 1048 to the other USB
port, but having difficulty.
 - In Config/Device ET/BT tab Modubus is selected since this is the primary input.
 - In Config/Device Extra Devices Tab, I've added the Phidget 1048 4x TC01 device and
ticked the LCD1 and Curve 1 boxes.  
 Correct

 My confusion comes from the ports configuration
 - The modbus settings have their own tab, that all works  
 Exactly

  - The ET/BT tab has a header "settings for
non-modbus devices"  Does this mean its that appropriate place to specify the phidget
connection?  
 Well, it should read "for non-modbus serial devices, not Phidgets"

  - The Extra tab, which seems like the right
place, shows that I've selected Phidget 1048, but has no settings (Comm port etc) and
is not editable  
 Phidgets do not need any serial setup. They communicate natively through USB (not serial
over USB).

  To add to my confusion, when i plug the USB cable
for the phidget in, the little notification bar above "Roaster Scope" shows that
its connected.  However when I click the ON button, the modbus temps show in the LCD, but
my BT2 shows as -1.0

 what am I doing wrong?  
 Did you install the current Phidgets driver (which is v22) from phidgets.com? Artisan
communicates to the Phidgets via this driver.

 Just install that driver for your platform and you should good to go.

 Best,
 Marko

 Any help appreciated

 Thanks, 
 Ben 

 Cafetechnica

 219B Murray Street
 Hobart TAS 7000

 0408 802 585
 ben(a)cafetechnica.com.au
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Re: Phidget extra device