3-58
BOP HIPWR 080709
3.6.4.3
QUERY INDICATOR
The question mark (?) following a keyword is a query indicator. This changes the command into
a query. If there is more than one keyword in the command, the query indicator follows the last
keyword. (e.g., VOLT? and MEAS:CURR?).
3.6.4.4
DATA
Some commands require data to accompany the keyword either in the form of a numeric value
or character string. Data always follows the last keyword of a command or query (e.g.,
VOLT:LEV:TRIG 14 or SOUR:VOLT? MAX
3.6.4.5
DATA SEPARATOR
Data must be separated from the last keyword by a space (e.g., VOLT:LEV:TRIG 14 or
SOUR:VOLT? MAX
FIGURE 3-19. MESSAGE STRUCTURE
3.6.4.6
MESSAGE UNIT SEPARATOR
When two or more message units are combined in a program message, they must be separated
by a semicolon (;) (e.g., VOLT 15;MEAS:VOLT? and CURR 12; CURR:TRIG 12.5).
3.6.4.7
ROOT SPECIFIER
The root specifier is a colon (:) that precedes the first keyword of a program message. This
places the parser at the root (top left, Figure 3-18) of the command tree. Note the difference
between using the colon as a keyword separator and a root specifier in the following examples:
VOLT:LEV:IMM 16 Both colons are keyword separators.
CURR:LEV 3.5;:OUTP ON;:CURR?<NL>
MESSAGE TERMINATOR
KEYWORD
QUERY INDICATOR
ROOT SPECIFIER
MESSAGE UNIT SEPARATOR
DATA
KEYWORD
KEYWORD SEPARATOR
KEYWORD
MESSAGE UNIT SEPARATOR
DATA
MESSAGE UNIT
DATA SEPARATOR
ROOT SPECIFIER
Содержание BOP 1000W
Страница 2: ......
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Страница 50: ...FIGURE 2 2 LOAD CONNECTIONS LOCAL SENSING...
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Страница 61: ...FIGURE 2 11 POWER ON DEFAULT SCREEN FOR SLAVE UNIT 2 8 4 OPERATING INSTRUCTIONS FOR MULTIPLE UNIT COMBINATIONS...
Страница 63: ...080709 C 25 FIGURE 2 12 3 X 2 3 SERIES X 2 PARALLEL CONFIGURA TION LOCAL SENSING TYPICAL 2 25 2 26 Blank 24 25...
Страница 64: ......
Страница 68: ...FIGURE 3 3 POWER UP SCREEN SHOWING GRAPHIC METERS VOLTAGE 0000 0...
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