Hangzhou Zhongchuang Electronics Co., Ltd.
16
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.