15 - 40
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If a command is transmitted with a parameter, the parameter is verified. If it is valid, it will be saved and
specified in the echo telegram. If the parameter is invalid, it will be disregarded and the set value
output in the echo telegram.
Examples
:
00BR00005<CR>
transmission command
!00BR00005<CR>
echo telegram (parameter valid and password OK)
00BR00004<CR>
transmission command
!00BR00005<CR>
echo telegram (parameter valid but key incorrect)
Note:
The values measured by the sensor can be queried with the command
TR.
In this case the Weather Station does not respond with the echo
telegram, but with the requested data telegram!
To avoid any unintentional change in parameters, some commands (see list of commands) are
protected with a password. This password must be transmitted before the actual command.
Example:
Change baud rate
00KY234<CR>
Release commands of user level
00BR4<CR>
Set baud rate to 4800
!00BR00004<CR>
Baud rate set to 4800
The Weather Station supports 3 different password levels.
User level (password: "234").
Calibration data level.
Administrator level.
Please note:
Password-protected commands are released as long as one of the
following conditions is satisfied:
- the supply voltage is switched
- command 00KY0<CR> is transmitted
- no new command is transmitted for min. 120s.
6.1.1 Data telegrams
Data output takes place in response to a request with the command TR. You can chose between the
following telegrams:
Measured value telegram (parameter=1).
Sensor data telegram (parameter=2).
Calculation of the checksum, the composition of the status word and the control characters/separators
used in the telegrams are described below.
