Vaisala DMT152 - Manual (Page 34)

User's Guide _______________________________________________________________________
32 ___________________________________________________________________ M210865EN-F
5. The installation has reserved a COM port for the cable. Verify the
port number, and the status of the cable, using the Vaisala USB
Instrument Finder program that has been installed in the
Windows Start menu.
Windows will recognize each individual cable as a different device, and
reserve a new COM port. Remember to use the correct port in the
settings of your terminal program.
There is no reason to uninstall the driver for normal use. However, if you
wish to remove the driver files and all Vaisala USB cable devices, you
can do so by uninstalling the entry for Vaisala USB Instrument Driver
from the Programs and Features menu in the Windows Control Panel.
In Windows XP and earlier Windows versions the menu is called Add or
Remove Programs.
Terminal Application Settings
The default settings of the DMT152 serial interface are presented in
Table 4. If the settings of your DMT152 have been changed and you do
not know what they are, refer to section Unknown Serial Settings on page
60.
Table 4 DMT152 Default Serial Interface Setting
Property Description / Value
Baud rate 19200
Parity None
Data bits 8
Stop bits 1
Flow control X
on
/X
off
(none)
The steps below describe how to connect to the DMT152 using the
PuTTY terminal application for Windows (available for download at
www.vaisala.com ) and a USB serial interface cable:
1. Connect the USB serial interface cable between your PC and the
RS-485 port of the DMT152 (connector II).
2. Start the PuTTY application.
3. Select the Serial settings category, and check that the correct COM
port is selected in the Serial line to connect to field.
Note: You can check which port the USB cable is using with the
Vaisala USB Instrument Finder program that has been installed
in the Windows Start menu.
4. Check that the other serial settings are correct for your connection,
and change if necessary. Flow control should be set to None unless
you have a reason to change it.