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Author Topic: Interface Weather Display with Nanhua anemometer  (Read 1304 times)

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Offline vinc86

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Interface Weather Display with Nanhua anemometer
« on: June 06, 2017, 08:33:58 PM »
Hello,

this is my first topic on this interesting forum. I'm an Italian meteorologist.

Recently, I've purchased a Nanhua anemometer (model FA21: http://en.nanhua.com/products/Anemometer/FA21/). The wind sensor is connected to the FA220C datalogger (http://en.nanhua.com/products/Anemometer/fa220c/). The latter communicates with PC via RS485-USB cable. I would connect this anemometer to Weather Display: is it possible to create an "ad-hoc" interface setup?

I await a feedback.

Thank you.

Best regards,

Vincenzo Capozzi

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Re: Interface Weather Display with Nanhua anemometer
« Reply #1 on: June 07, 2017, 08:05:47 AM »
Hi
is there an RS232 option?

Offline vinc86

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Re: Interface Weather Display with Nanhua anemometer
« Reply #2 on: June 08, 2017, 09:42:51 PM »
Hi,

No, unfortunately, the anemometer can ne connected to the PC only with a RS485-USB cable.

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Re: Interface Weather Display with Nanhua anemometer
« Reply #3 on: June 09, 2017, 03:29:52 AM »
I think you can get RS485 -> RS232 hardware convertor?

Offline niko

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Re: Interface Weather Display with Nanhua anemometer
« Reply #4 on: June 09, 2017, 02:23:00 PM »
If it already uses an RS485 to USB converter at the PC end I'm not sure you need to worry about RS232. Need to know the interface protocol though.

Offline vinc86

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Re: Interface Weather Display with Nanhua anemometer
« Reply #5 on: June 11, 2017, 09:27:15 AM »
According to the guidelines provided by Nanhua manual, the connection between datalogger and PC can be performed only via RS485-USB cable.

I hope that we can find a solution. The Nanhua software generates a .txt file that contains the average wind speed and wind direction data. The file is updated every 10 second. As an alternative, we could find a solution to read those files through Weather Display (as it occurs for the .dat files generated by Campbell datalogger).   

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Re: Interface Weather Display with Nanhua anemometer
« Reply #6 on: June 11, 2017, 05:52:15 PM »
that will work, getting WD to read the text file

Offline vinc86

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Re: Interface Weather Display with Nanhua anemometer
« Reply #7 on: June 12, 2017, 07:14:23 AM »
that will work, getting WD to read the text file

Ok, this is a good news!

How we can interact about this topic? Maybe I could send you an example of this .txt via email.

Let me know.

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Re: Interface Weather Display with Nanhua anemometer
« Reply #8 on: June 12, 2017, 09:40:47 PM »
yes, that will be the first step  :wink:

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Re: Interface Weather Display with Nanhua anemometer
« Reply #9 on: June 18, 2017, 11:10:15 PM »
I have added support now
see my reply email

Offline icemannapoli

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Re: Interface Weather Display with Nanhua anemometer
« Reply #10 on: July 21, 2017, 06:17:58 PM »
Hi Brian

Along with my friend Vinc86 we tried viewing through the txt file but it does not work.

we used latest version of WD select the txt file but not work..

Suggestion ?

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Re: Interface Weather Display with Nanhua anemometer
« Reply #11 on: July 29, 2017, 02:47:06 AM »
Hi
that should work
as long as the file you have selected in WD is being updated
if you could .zip and email me that file you have, and the wdisplay.ini setting file, I can test/check here

Offline icemannapoli

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Re: Interface Weather Display with Nanhua anemometer
« Reply #12 on: August 18, 2017, 10:58:32 PM »
good news

i partially solved

the Nanhua text file path must be under wdisplay directory to work.

But now i have another problem too...

into Nanhua txt file 2.9 m/s are written without comma decimal separate  Example:  2.9 m/s as 29
4.5 m/s as 45

Wd read 4.5 as 45

it's possible for you to correct this problem?

the Nanhua txt file is:

00:00:00 28 226
00:00:10 30 222
00:00:20 28 219
00:00:30 26 229
00:00:40 27 239

28,30,28,26,27  must be 2.8,3.0,2.8,2.6,2.7


thanks a lot

Mario

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Re: Interface Weather Display with Nanhua anemometer
« Reply #13 on: August 18, 2017, 11:12:07 PM »
yes, that is an easy fix

the file problem must have been a permissions problem then in the original folder

Offline icemannapoli

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Re: Interface Weather Display with Nanhua anemometer
« Reply #14 on: August 18, 2017, 11:27:26 PM »
okay

for the decimal comma ? can you solved?

29 for WD should be 2.9 m/s ;)

actually 29 is 29 :D

 

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