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specified terminator. Only after the instrument receives the terminator will it analyze and
process the command string. The terminator is 0x0a.
Query return format: when the instrument responds to a query command, it will return
the search results: <Result> + <NL>; Result is the results, NL the carriage return.
Data type: the data in the form of ASCII characters transmitted on the bus may have
the following types
Exponential
floating number
+2.345678E+04
-1.345678E-01
Conventions for marks: These marks are part of the command which is in line with the
rules of grammar:
Colon, enter the next level of the command
Semicolon, the same level of command
Comma, multi-parameter separator
Question mark indicates the query
Spacing, separating commands and parameters
These marks are added in order to specify the command format, but are not
part of the command
The optional command parameters are given in the square brackets
Division mark—to select one from many
The definition of the variable parameter is given or the variable
parameters listed in the angle brackets
Interpretation which is not seen in the actual command
Abbreviations and capitalization:
The command has full format and abbreviated format, in the following descriptions of
the command, capitalization represents abbreviation, and the abbreviated command
has the same effect with the complete command;
Abbreviations are generally expressed by four letters of the complete command, the
random abbreviation which does not appear in the command table will be considered
as the wrong command;
There is no difference regarding capitalization for ASCII command actually
transmitted on the bus and the letters of parameter.
Reference: Refer to the communication protocol of ET43 for specific commands.
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