Vaisala PWD22 - Precipitation Sums; List of Commands; PWD22;52 Command Set; Help

Chapter 5 ________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 57
Message Polling
In the polled (CLOSE) mode, PWD22/52 sends a data message when the
host computer transmits a polling command. The message polling mode
is selected with the following command:
AMES Message_number 0
where
Message_number
=
Valid range 0 ... 7. Selects the corresponding
message as the default
polled message.
Negative message numbers are converted to 0.
Message_interval
=
Use the negative or zero interval to disable
automatic sending when messages are polled.
For example:
AMES 0 0
The above command selects message 0 for default answer for the polling
and cancels the automatic sending.
The polling command format is the following:
C
R
E
Q
PW id message_number
C
R
where
C
R
=
ASCII character 13 hex (Carriage Return)
E
Q
=
ASCII character 05 hex (CTRL-E).
id
=
Selected in the configuration.
message number
=
This is optional.
C
R
=
ASCII character 13 hex (Carriage Return)
When the PWD22/52 unit number one (ID=1) is polled for message
number 3 (status), the command format is the following:
C
R
E
Q
PW 1 3
C
R
This format can be used in all cases.
Use character 1 as the ID if the ID has not been set but a specific
message type is polled. This allows the PWD22/52 software to
distinguish the ID from the message number.
Use the
C
R
E
Q
PW
C
R
command only if one PWD22/52 unit is on the line (no
ID is set) and the default message is wanted.