Das Structure - Teledyne T100 Instruction Manual

Remote Operation & Advanced Features
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5.2.1. DAS STRUCTURE

5.2.1.1. DAS CHANNELS
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The principal use of the DAS is logging data for trend analysis and predictive
diagnostics, which can assist in identifying possible problems before they affect the
functionality of the analyzer. The secondary use is for data analysis, documentation and
archival in electronic format.
To support the DAS functionality, Teledyne ML offers APICOM, a program that
provides a visual interface for remote or local setup, configuration and data retrieval of
the DAS. The APICOM manual, which is included with the program, contains a more
detailed description of the DAS structure and configuration, which is briefly described
in this section.
The T100 is configured with a basic DAS configuration, which is enabled by default.
New data channels are also enabled by default but each channel may be turned off for
later or occasional use. Note that DAS operation is suspended while its configuration is
edited through the front panel. To prevent such data loss, it is recommended to use the
APICOM graphical user interface for DAS changes.
The green SAMPLE LED on the instrument front panel, which indicates the analyzer
status, also indicates certain aspects of the DAS status:
Table 5-5: Front Panel LED Status Indicators for DAS
System is in calibration mode. Data logging can be enabled or disabled for this mode.
Calibration data are typically stored at the end of calibration periods, concentration data are
typically not sampled, diagnostic data should be collected.
Instrument is in hold-off mode, a short period after the system exits calibrations. IDAS
channels can be enabled or disabled for this period. Concentration data are typically disabled
whereas diagnostic should be collected.
Sampling normally.
The DAS can be disabled only by disabling or deleting its individual data channels.
The DAS is designed around the feature of a "record". A record is a single data point of
one parameter, stored in one (or more) data channels and generated by one of several
triggering event. The entire DAS configuration is stored in a script, which can be edited
from the front panel or downloaded, edited and uploaded to the instrument in form of a
string of plain-text lines through the communication ports.
DAS data are defined by the PARAMETER type and are stored through different
triggering EVENTS in data CHANNELS, which relate triggering events to data
parameters and define certain operational functions related to the recording and
reporting of the data.
The key to the flexibility of the DAS is its ability to store a large number of
combinations of triggering events and data parameters in the form of data channels.
Users may create up to 20 data channels and each channel can contain one or more
parameters. For each channel one triggering event is selected and up to 50 data
parameters, which can be the same or different between channels. Each data channel has
several properties that define the structure of the channel and allow the user to make
operational decisions regarding the channel (refer to Table 5-6).
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DAS STATUS