Hangzhou Zhongchuang Electronics Co., Ltd.
16
Terminator: the command line sent from the PC to the instrument must end with the
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
Type
Meaning
Example
<NR1>
Integer
+800,-200,100,-50
<NR2>
Decimal
+1.56,-0.001,10.5
<NR3>
Exponential
floating number
+2.04
-1.345678E-01
<NRf>
NR1 NR2 NR3
<NL>
Enter
an integer of 10
Conventions for marks: These marks are part of the command which is in line with the
rules of grammar:
Rules of grammar
Definition
:
Colon, enter the next level of the command
;
Semicolon, the same level of command
*
Asterisk, public command
,
Comma, multi-parameter separator
？
Question mark indicates the query
Spacing, separating commands and parameters
“ ”
Quotes for quoted part
These marks are added in order to specify the command format, but are not
part of the command
Marks
Definition
[ ]
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.
