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8.2
Data Recorder
The E-871.1A1N contains a real-time data recorder. The data recorder can record different
variables, e.g., the current position of an axis.
The recorded data is stored temporarily in data recorder tables. Each data recorder table
contains the data of one data source.
The E-871.1A1N has 4 data recorder tables with 8192 data points each.
You can configure the data recorder for example, by defining the data type to be recorded
and the data sources, and by specifying how the recording is to be started.
8.2.1
Setting up the Data Recorder
Reading general information from the data recorder
1. Send the
HDR?
➔
The options available for recording and triggering are displayed together with the
information on additional parameters and commands for data recording.
Determining the data to be recorded
1. Configure the data recorder with the
.
➔
This assigns the data sources and the recording options to the data recorder tables. The
current configuration can be read out with the
command.
Data recorder tables with the record option 0 are deactivated, i.e., nothing is recorded. By
default, the data recorder tables of the E-871.1A1N record the following:
■
Data recorder table 1: Record option 1: Commanded position of the axis
■
Data recorder table 2: Record option 2: Current position of the axis
■
Data recorder table 3: Record option 3: Position error of the axis
■
Data recorder table 4: Record option 73: Control value of the axis
Setting the trigger for recording
1. Set the trigger option with the
The trigger specifies how the recording is to be triggered. The current trigger option can
be queried with the
command.
➔
The trigger option applies to all data recorder tables whose record option is not set to 0.
Setting the record table rate
1. Send the
command to set the recording rate of the data recorder.
The parameter indicates the number of servo cycles required for recording each data
point. The recording rate can be read out with the
command.
As the record table rate increases, the maximum duration of the data recording is
increased.
8.2.2
Starting Data Recording
Starting the Recording
1. Start the recording with the trigger option set with
.
Unabhängig von der einstellten Triggeroption wird die Datenaufzeichnung immer
ausgelöst, wenn eine Sprungantwortmessung mit
gestartet wird.
The data recording always takes place for all data recorder tables whose record option is
not set to 0. It ends when the data recorder tables are full.
8 E-871.1A1N FUNCTIONS
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