10
Revision 1.6.1 2/28/06 Printed in USA
Section 6.0 Installing and Running Utility Soft-
ware
Computer Requirements.A Pentium class PC is
recommended to take full advantage of the high
speed capabilities of the DXD digital pressure trans-
ducer, however, any PC capable of running Windows
95 can be used.
Software. Three Disks and/or a CD rom are available
for the DXD transducer that provide a program called
DXDSetup. This optional software provides an easy
means of setting up the user configurable features of
the DXD along with data logging and display capabili-
ties. It includes an “OCX” compatible com driver
which can be utilized through Active X compliant
software. See the software supplement for details.
Section 7.0 Using Hyperterminal with the DXD
Windows 95 includes a utility terminal emulation
program called Hyperterminal. Hyperterminal can be
used to communicate with the DXD in order to setup
user preferences such as address, label, etc. and to
read pressure. The following section will guide you
through the steps required to accomplish this. This
tutorial in DXD command structure can also be used
with the Windows 3.1 Terminal.exe application or any
terminal emulation software provided you are familiar
with the setup characteristics of those programs. The
command syntax illustrated in the following section
will familiarize you with how they are implemented if
you wish to write your own software.
Basic Setup Information
Each DXD transducer is configured for address value
01 and bit rate 19,200 bits per second as shipped
from the factory. These values can be changed,
however, the following instructions assume that you
are using the DXD in the factory configuration.
Signal and Power Connections
Make all electrical and power connections as de-
scribed in Section 5.0. IMPORTANT:Be sure to
connect only one DXD until you are familiar with
its addressing conventions.
7.1 Configuring HyperTerminal
The Hyperterminal application prompts you through
the process of setting up communication parameters
that include assigning a file name and icon and
setting the com port, data format, bps (bit per sec-
ond). After this is done, you can save the configura-
tion using a name like “DXD” and simply open it by
name without need to re-configure it each time it is
used. This application will work with RS232 ports,
RS232 ports with a RS232 to RS485 adapter, or an
RS485 port.
1. Click the start button on the task bar and drag up to
Run...
2. Type hypertrm in the text box and click OK. This
will launch the Hyperterminal configuration program.
3. You will be prompted for a name so use something
easy to remember like DXD. Type the name and
select an icon. Click on the OK button.
4. The next box will prompt you for a phone number.
Pull down the Connect using: box and choose the
appropriate com port and click OK (a phone number
isn’t utilized in this type of setup).
5. Next you will be prompted for com port setup which
should be configured as follows: Bits per second:
19200, Data bits: 7, Parity: Even, Stop bits: 1, Flow
control: None.
6. Next click on the settings tab and click on ASCII
setup button.
7. Click in the check boxes labeled Send line ends
with line feeds and Echo typed characters locally.
Click OK to close this box and OK to close the next
box.
8. You have now configured HyperTerminal to com-
municate with the DXD. Open the File drop box in the
upper left hand corner of the window and select save.
This will save the com port configuration for later use.
9. Open the File drop box in the upper left hand
corner of the HyperTerminal window and select Exit.
You will be prompted by an alert message stating that
you are currently connected and asking if you want to
terminate now. Click Yes and HyperTerminal will
close.
7.2 Basic Communications with the DXD
The command library in Section 9 contains a detailed
description of all of the DXD commands, responses
and data formats. It also outlines the command
syntax required to read from or write to the DXD. The
following section describes how to use these com-
mands via HyperTerminal.
