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From: Bao Kha Nguyen on 10 Mar 2010 06:43
Hello!

I am using Quatech QSC-200/300 Card to send and receive data from EuroTherm 808 Temperature Controller. Strings are as follows:

Computer send: (EOT) (Group ID) (Unit ID) (C1) (C2) (ENQ)
Controller reply: (STX) (C1) (C2) (D1) (D2) (D3) (D4) (D5) (ETX)
where (Group ID) and (Unit ID): 00-99
(C1) (C2) is parameter specified by mnemonic, ex: P V,S V...
(D1..D5): value of the requested parameter

How can I format the above strings in ASCII Encode, Decode and FIFO Read HDRS blocks?
I have tried to use the following formats but I only received 0:

+ ASCII Encode block: EOT %d%d P V ENQ (2 inputs are controller address, P V is a parameter specified by mnemonic)
+ FIFO Read HDRS block: Header: 'P V', Terminating String:[03] (ETX)
+ ASCII Decode: P V %f ETX (%f is for the value received from the controller)

Could you please help me to correct the above string format to communicate with the device.
I look forward to your advice. Thank you so much in advance...

Kind regards,
Kha




From: Gordon Weast on 10 Mar 2010 14:01
Responding via email with a model attached.

Gordon Weast
xPC Target

Bao Kha Nguyen wrote:
> Hello!
>
> I am using Quatech QSC-200/300 Card to send and receive data from
> EuroTherm 808 Temperature Controller. Strings are as follows:
>
> Computer send: (EOT) (Group ID) (Unit ID) (C1) (C2) (ENQ) Controller
> reply: (STX) (C1) (C2) (D1) (D2) (D3) (D4) (D5) (ETX) where (Group ID)
> and (Unit ID): 00-99
> (C1) (C2) is parameter specified by mnemonic, ex: P V,S V... (D1..D5):
> value of the requested parameter
>
> How can I format the above strings in ASCII Encode, Decode and FIFO Read
> HDRS blocks?
> I have tried to use the following formats but I only received 0:
>
> + ASCII Encode block: EOT %d%d P V ENQ (2 inputs are controller address,
> P V is a parameter specified by mnemonic)
> + FIFO Read HDRS block: Header: 'P V', Terminating String:[03] (ETX)
> + ASCII Decode: P V %f ETX (%f is for the value received from the
> controller)
>
> Could you please help me to correct the above string format to
> communicate with the device.
> I look forward to your advice. Thank you so much in advance...
>
> Kind regards,
> Kha
>
>
>
>
From: Bao Kha Nguyen on 11 Mar 2010 06:04
Thank you so much, Gordon. Your answers are very helpful.
I have also replied your email.
Best regards,
Bao Kha Nguyen

Gordon Weast <gweast(a)mathworks.com> wrote in message <hn8q9k$671$1(a)fred.mathworks.com>...
> Responding via email with a model attached.
>
> Gordon Weast
> xPC Target
>
> Bao Kha Nguyen wrote:
> > Hello!
> >
> > I am using Quatech QSC-200/300 Card to send and receive data from
> > EuroTherm 808 Temperature Controller. Strings are as follows:
> >
> > Computer send: (EOT) (Group ID) (Unit ID) (C1) (C2) (ENQ) Controller
> > reply: (STX) (C1) (C2) (D1) (D2) (D3) (D4) (D5) (ETX) where (Group ID)
> > and (Unit ID): 00-99
> > (C1) (C2) is parameter specified by mnemonic, ex: P V,S V... (D1..D5):
> > value of the requested parameter
> >
> > How can I format the above strings in ASCII Encode, Decode and FIFO Read
> > HDRS blocks?
> > I have tried to use the following formats but I only received 0:
> >
> > + ASCII Encode block: EOT %d%d P V ENQ (2 inputs are controller address,
> > P V is a parameter specified by mnemonic)
> > + FIFO Read HDRS block: Header: 'P V', Terminating String:[03] (ETX)
> > + ASCII Decode: P V %f ETX (%f is for the value received from the
> > controller)
> >
> > Could you please help me to correct the above string format to
> > communicate with the device.
> > I look forward to your advice. Thank you so much in advance...
> >
> > Kind regards,
> > Kha
> >
> >
> >
> >
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