Campbell Scientific PWS100 Present Weather Sensor - Manual (Page 39)

Section 7. Operation
In the descriptions which follow ↵ symbolizes the pressing of the ENTER key.
Input parameters in italics should be user-defined characters appropriate for the
command. Unless otherwise stated, all command parameters should be
separated by a space.
To support addressed RS-485 networks, each PWS100 can be assigned an
identifier, shown as Pws_Id below. By default the PWS_Id is set to 0 (zero).
When operating at the root level, commands are not echoed back
to the terminal as this mode is intended primarily for polled data
collection and echoed commands will complicate the issue of
decoding the responses sent back from the sensor. Local echo
can be turned on in Hyperterminal if required. Start
Hyperterminal, select the pulldown ‘File’ menu and select
‘Properties’. Click the ‘ASCII setup’ tab and check the ‘Echo
typed characters locally’ checkbox. NOTE
7.3.1 Using the Help Command
To list available commands, the HELP command can be used as follows with
the correct PWS100 Pws_Id:
HELP Pws_Id ↵
e.g., HELP 0 ↵
The PWS100 will respond with a list of available commands and their basic
function.
7.3.2 Entering / Exiting the Menu System
The user can enter the menu system by using the OPEN command with the
correct Pws_Id. If a password is set, then it should also be entered. The
command is then as follows:
OPEN Pws_Id Password ↵
e.g., OPEN 0 campbell ↵
The PWS100 will then display the SETUP menu of the menu system
To close the menu system and return the PWS100 to operation, option
9 should be chosen from the SETUP menu (see Figure 7-1). At this
point either option 1 should be chosen to save changes and quit the
menu system, or option 2 should be chosen to lose changes made and
quit the menu system. Option 0 will return the user to the SETUP
menu.
Changes made to the unit calibration and time and date settings
while in the menu system are immediate and as such will remain
changed independent of the quit option chosen from the menu. NOTE
7-3