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Teledyne API Model T360/T360M Operation Manual Operating Instructions
157
consist of an optional plus or minus sign, followed by zero or more digits, an
optional decimal point, and zero or more digits. (At least one digit must
appear before or after the decimal point.) Scientific notation is not permitted.
For example, +1.0, 1234.5678, -0.1, 1 are all valid floating-point numbers.
Boolean expressions are used to specify the value of variables or I/O signals
that may assume only two values. They are denoted by the keywords ON
and OFF.
Text strings are used to represent data that cannot be easily represented by
other data types, such as data channel names, which may contain letters and
numbers. They consist of a quotation mark, followed by one or more
printable characters, including spaces, letters, numbers, and symbols, and a
final quotation mark. For example, “a”, “1”, “123abc”, and “()[]<>” are all valid
text strings. It is not possible to include a quotation mark character within a
text string.
Some commands allow you to access variables, messages, and other items,
such as DAS data channels, by name. When using these commands, you
must type the entire name of the item; you cannot abbreviate any names.
4.15.2.5. STATUS REPORTING
Reporting of status messages as an audit trail is one of the three principal uses for
the RS-232 interface (the other two being the command line interface for
controlling the instrument and the download of data in electronic format). You
can effectively disable the reporting feature by setting the interface to quiet mode
(Section 4.11.5, Table 4-9).
Status reports include DAS data (when reporting is enabled), warning m
essages,
calibration and diagnostic status messages. Refer to Appendix A-3 for a list of
the possible messages, and this for information on controlling the instrument
through the RS-232 interface.
General Message Format
All messages from the instrument (including those in response to a command line
request) are in the format:
X DDD:HH:MM [Id] MESSAGE<CRLF>
Where:
X is a command type designator, a single character indicating the
message type, as shown in the Table Table 4-26.
DDD:HH:MM is the time st
amp, the date and time when the message was
issued. It consists of the Day-of-year (DDD) as a number from 1
to 366, the hour of the day (HH) as a number from 00 to 23, and
the minute (MM) as a number from 00 to 59.
[ID] is the analyzer ID, a number with 1 to 4 digits.
MESSAGE is the message content that may contain warning messages, test
measurements, DAS reports, variable values, etc.
<CRLF> is a carriage return / line feed pair, which terminates the
message.
07272B DCN6552