Service cable connection – Vaisala WXT520 User Manual
Page 60
User’s Guide ______________________________________________________________________
58 __________________________________________________________________ M210906EN-C
Service Cable Connection
The USB Service Cable has a snap-on connector for the M8 connector
of the service port. The service cable connection is recommended for
checking and changing the device settings. When making the changes,
use the Vaisala Configuration Tool or a standard PC terminal program.
The USB service cable is included in the Service Pack 2, see
. For a picture of the service cable, see
.
When you connect the USB service cable between the service connector
and PC USB port, the service port settings are forced automatically to
RS-232 / 19200, 8, N, 1. At the same time, the main serial port at M12
connector and at screw terminals is disabled.
1.
Make a connection between the USB port of your PC and the M8
service port connector on the bottom plate of the transmitter by
using the USB service cable. See
2.
Open the Vaisala Configuration Tool, or a terminal program.
3.
Select the COM port that has been reserved for the USB cable, and
select the following default communication settings:
19200, 8, N, 1.
4.
Use the Vaisala Configuration Tool or a terminal program to make
the desired configuration changes. When working with a terminal
program, see section
Communication Setting Commands on page
.
5.
When removing the service cable, support the transmitter while
pulling on the snap-on connector. The connection is tight, and it is
possible to change the alignment of the transmitter if you pull too
hard.
NOTE
Changes in the serial interface/communication protocol/baud settings
take place when disconnecting the service cable or when resetting the
transmitter.
If these settings are not changed during the service connection session,
the original main port settings (at M12 and screw terminals) are
returned as soon as the service cable is disconnected from either end.