Teledyne T200, Руководство по эксплуатации, Страница: 173 / 425

Teledyne API
– T200 NO/NO
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Analyzer Operation Manual Remote Operation
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COMMAND
is the command designator: This string is the name of the command being
issued (LIST, ABORT, NAME, EXIT, etc.). Some commands may have
additional arguments that define how the command is to be executed.
Press ? <CR> or refer to Appendix A-6 for a list of available command
designators
<CR>
is a carriage return. All commands must be terminated by a carriage return
(usually achieved by pressing the ENTER button on a computer).
Table 8-2: Teledyne API's Serial I/O Command Types
COMMAND COMMAND TYPE
C
Calibration
D
Diagnostic
L
Logon
T
Test measurement
V
Variable
W
Warning
8.2.1.3. DATA TYPES
Data types consist of integers, hexadecimal integers, floating-point numbers, Boolean
expressions and text strings.
Integer data are used to indicate integral quantities such as a number of records, a filter
length, etc. They consist of an optional plus or minus sign, followed by one or more
digits. For example, +1, -12, 123 are all valid integers.
Hexadecimal integer data are used for the same purposes as integers. They consist of
the two characters “0x,” followed by one or more hexadecimal digits (0-9, A-F, a-f),
which is the „C‟ programming language convention. No plus or minus sign is permitted.
For example, 0x1, 0x12, 0x1234abcd are all valid hexadecimal integers.
Floating-point numbers are used to specify continuously variable values such as
temperature set points, time intervals, warning limits, voltages, etc. They 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 key words 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. When using
these commands, you must type the entire name of the item; you cannot abbreviate any
names.
06858E DCN7057