Scanlab RTC 4 - Querying Data

RTC
®
4 PC Interface Board
Rev. 1.3 e
4 Principle Of Operation
39
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Querying Data
Data received by the RTC
®
4 can be read
asynchronously at any time via the commands
get_value or get_head_status or synchronously via
the command set_trigger (see "Status Monitoring
and Diagnostics", page 38 and the corresponding
command references). Please note that switching of
the data source is followed by a short (serial
transmission-related) delay before the first data is
transmitted. Therefore, after switching data sources
you should wait at least 50 µs before reading.
The value ranges of transmitted data and the
possible status states are described in the command
reference of the control_command command.
Note: Together with an intelliSCAN
®
scan system, the
get_head_status command can only be used to get the
status signals (Statusword) directly after a new start or reset
or when the Statusword is selected to be transmitted by the
scan system via the control_command command.