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Forum index » Science and Technology » Engineering » Control
RS232 Datalogging and Control
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Andy11
science forum beginner


Joined: 08 Sep 2005
Posts: 12

PostPosted: Sat Jun 17, 2006 12:06 am    Post subject: RS232 Datalogging and Control Reply with quote

Not sure if this is a classical control theory NG, ignore me if it is, but I
have a question about instrument control and datalogging via RS232.

I've been handed the task of controlling a thermal cycling oven and a
digital voltmeter, both RS232 enabled, so as to control the oven from a
computer ( automatically send commands ) and log data from the voltmeter.

Unfortunately my expertise in this area is somewhat out of date.
MS Hyperterminal doesn't look capable enough, OK for logging data but no
programmable capability.

My question is, is there a datalogging program available that also allows
ascii characters to be sent to addressable instruments, in order to (a)
control the oven and (b) log data from the DVM without programming?

I imagine writing a program in some language, possibly Visual Basic, is the
way to go but that'll get me bogged down in learning a software language.
However, if I can't buy in suitable software I'll just have to learn VB, but
does anyone know of such software or the best way to go?

thanks,

Andy.
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Gene S. Berkowitz
science forum beginner


Joined: 01 May 2005
Posts: 11

PostPosted: Sat Jun 17, 2006 2:47 am    Post subject: Re: RS232 Datalogging and Control Reply with quote

In article <4493479c@212.67.96.135>, andrewpreece@onetel.com says...
Quote:
Not sure if this is a classical control theory NG, ignore me if it is, but I
have a question about instrument control and datalogging via RS232.

I've been handed the task of controlling a thermal cycling oven and a
digital voltmeter, both RS232 enabled, so as to control the oven from a
computer ( automatically send commands ) and log data from the voltmeter.

Unfortunately my expertise in this area is somewhat out of date.
MS Hyperterminal doesn't look capable enough, OK for logging data but no
programmable capability.

My question is, is there a datalogging program available that also allows
ascii characters to be sent to addressable instruments, in order to (a)
control the oven and (b) log data from the DVM without programming?

I imagine writing a program in some language, possibly Visual Basic, is the
way to go but that'll get me bogged down in learning a software language.
However, if I can't buy in suitable software I'll just have to learn VB, but
does anyone know of such software or the best way to go?

thanks,

Andy.

You might want to look at WinWedge, it was designed for this.
http://www.taltech.com/products/winwedge.html

--Gene
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miles
science forum beginner


Joined: 27 Apr 2006
Posts: 4

PostPosted: Sat Jun 17, 2006 5:55 am    Post subject: Re: RS232 Datalogging and Control Reply with quote

Andy wrote:
Quote:
Not sure if this is a classical control theory NG, ignore me if it is, but I
have a question about instrument control and datalogging via RS232.

I've been handed the task of controlling a thermal cycling oven and a
digital voltmeter, both RS232 enabled, so as to control the oven from a
computer ( automatically send commands ) and log data from the voltmeter.

Unfortunately my expertise in this area is somewhat out of date.
MS Hyperterminal doesn't look capable enough, OK for logging data but no
programmable capability.

My question is, is there a datalogging program available that also allows
ascii characters to be sent to addressable instruments, in order to (a)
control the oven and (b) log data from the DVM without programming?

I imagine writing a program in some language, possibly Visual Basic, is the
way to go but that'll get me bogged down in learning a software language.
However, if I can't buy in suitable software I'll just have to learn VB, but
does anyone know of such software or the best way to go?

As someone pointed out, WinWedge can probably do it. Depending on the
manufacture of your DVM there maybe software available for data logging.
Such as for Keithley instruments who provides a free Excel add-on that
enables it to log data into a spreadsheet.
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Andy11
science forum beginner


Joined: 08 Sep 2005
Posts: 12

PostPosted: Sun Jun 18, 2006 1:37 am    Post subject: Re: RS232 Datalogging and Control Reply with quote

"miles" <nope@nopers.com> wrote in message
news:0PMkg.43$L15.31@fed1read10...
Quote:
Andy wrote:
Not sure if this is a classical control theory NG, ignore me if it is,
but I have a question about instrument control and datalogging via RS232.

I've been handed the task of controlling a thermal cycling oven and a
digital voltmeter, both RS232 enabled, so as to control the oven from a
computer ( automatically send commands ) and log data from the voltmeter.

Unfortunately my expertise in this area is somewhat out of date.
MS Hyperterminal doesn't look capable enough, OK for logging data but no
programmable capability.

My question is, is there a datalogging program available that also allows
ascii characters to be sent to addressable instruments, in order to (a)
control the oven and (b) log data from the DVM without programming?

I imagine writing a program in some language, possibly Visual Basic, is
the way to go but that'll get me bogged down in learning a software
language. However, if I can't buy in suitable software I'll just have to
learn VB, but does anyone know of such software or the best way to go?

As someone pointed out, WinWedge can probably do it. Depending on the
manufacture of your DVM there maybe software available for data logging.
Such as for Keithley instruments who provides a free Excel add-on that
enables it to log data into a spreadsheet.

Thanks, I'll take a look,

Andy.
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Johnson Luqaz
science forum beginner


Joined: 27 Mar 2006
Posts: 4

PostPosted: Wed Jun 28, 2006 2:58 am    Post subject: Re: RS232 Datalogging and Control Reply with quote

If you wish more sophistication you may try DAQFactory from
http://www.azeotech.com/

thanks.

On Sat, 17 Jun 2006 08:06:50 +0800, Andy <andrewpreece@onetel.com> wrote:

Quote:
Not sure if this is a classical control theory NG, ignore me if it is,
but I
have a question about instrument control and datalogging via RS232.

I've been handed the task of controlling a thermal cycling oven and a
digital voltmeter, both RS232 enabled, so as to control the oven from a
computer ( automatically send commands ) and log data from the voltmeter.

Unfortunately my expertise in this area is somewhat out of date.
MS Hyperterminal doesn't look capable enough, OK for logging data but no
programmable capability.

My question is, is there a datalogging program available that also allows
ascii characters to be sent to addressable instruments, in order to (a)
control the oven and (b) log data from the DVM without programming?

I imagine writing a program in some language, possibly Visual Basic, is
the
way to go but that'll get me bogged down in learning a software language.
However, if I can't buy in suitable software I'll just have to learn VB,
but
does anyone know of such software or the best way to go?

thanks,

Andy.





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