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vrf Vee Pro / RS-232 instrument communication

Question asked by VRFuser on Jan 20, 2003
Hello,

We have Vee Pro 6.1 and use it with a HP 8720 C and HP 85070 data logger.  We want to read data from a (really dumb) device that emits readings in the
form of streaming RS-232 in ASCII characters.  I wrote a QBASIC program to do this several years ago (like a terminal program) but I do not have a clue
how to do this under Vee Pro 6.1 with Windows XP.  Could someone guide us in the right direction?

Basically, we want to use GPIB for the instruments and (perhaps) use one of the USB ports for the dumb device and read the data with Vee Pro.  As I
remember, the protocol is something like:

Device: Density meter
BAUD RATE: 2400 (streaming with no handshaking).  Data comes off like + 9 2 3 2 4 2 3 <LF> <CR> + 9 2 3 2 4 2 5 <LF> <CR>     etc....
STOP BIT: 1
PARITY BIT: NONE
XON/XOFF: NONE

Would this be done with the Instrument Manager?  Other drivers?  Is there something available?  We need to measure the data versus time along with the
other instrument readings (temperatures, pressures, complex impedance, etc.)

Thanks, Richard Smith

----
Richard L. Smith, Jr.

Professor / Regional Editor, Journal of Supercritical Fluids
Tohoku University
Research Center of Supercritical Fluid Technology
Aramaki Aza Aoba-04, Aoba-ku, Sendai 980-8579, JAPAN

e-mail: smith@scf.che.tohoku.ac.jp
Tel: +81-22-217-5863; Fax: +81-22-217-5863

Japanese Address:
$B") (B980-8579
$B@gBf;T@DMU6h9S4,;z@DMU (B04
$BElKLBg3X (B  $BD6NW3&MOG^9)3X8&5f%;%s%?!< (B
Tel: 022-217-5863; Fax: 022-217-5863



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