21 - 21 021537/06/10
Example:
With the command
00BR<cr> <cr> stands for Carriage return (Enter key)
the selected data record for the baud rate is returned.
!00BR00005
Remark:
The receiving buffer of the ULTRASONIC can be cleared by sending a carriage
return <CR>. If the ULTRASONIC possibly has invalid characters in the receiving
buffer, this buffer can be processed by sending a carriage return. In this case, it is
advisable to send a carriage return at the beginning of the telegram, for example:
<cr>00BR<cr> <cr> stands for Carriage return (Enter key)
7.1.4 Return values of ULTRASONIC
After a valid command has been input, the ULTRASONIC sends acknowledgement, e.g.
acceptance of the parameter or output of a data telegram.
For a standard command the response starts with a '!', followed by the ID and the parameter value.
If the input command is TR or TT, the ULTRASONIC transmits a data telegram as the response.
If the command cannot be processed for a certain reason, the instrument transmits a telegram with
the error code 'CE' (Command Error). The meanings of the values for CE are summarised in
'Table 2.
Value output in CE telegram
Meaning
8
Incorrect access mode
16
Parameter not in valid range
4 or 32
Violation regarding parameters of other commands
Table 2: Return values with incorrect interpretation of command
7.1.5 Access Mode
For configuration the ULTRASONIC has a set of commands which determine behaviour in terms of
the propagation time. The commands are broken down into three levels:
•
Enquiry Mode
•
User mode
•
Configuration mode