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8.2 Communication
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Decimal data
The numeric data values are all represented in decimal, in three formats
identified as NR1, NR2 and NR3, and each of these can appear as either a
signed number or an unsigned number. Unsigned numbers are taken as
positive.
NR1 format: Integer data
Example: +12, -23, 34
NR2 format: Fixed point number
Example: +1.23, -23.45, 3.456
NR3 format: Floating point number
Example: +1E-2, -2.3E+4
The term "NRf format" includes all these three formats.
Each 3237/38/39 command designates a format.
③ Delimiter
Depending on transmission direction, the delimiter is as follows.
From computer to 3237/38/39: CR or CR + LF
From 3237/38/39 to computer: CR + LF
(3) Separators
① Command unit separator
Multiple commands can be written in a line by connecting them with a
semicolon";".
Example: "FUNCtion 'VOLTage';VOLTage:RANGe 100"
Multiple query commands can also be in a line. Response is returned in a
line with each responding data separated by a semicolon";". Writing multiple
commands without inserting semicolons results in text error failing to
complete command execution.
② Separator between command and parameter
Use space" " in command with both command and parameter to separate
command and parameter.
Example: "VOLTage:RANGe 100"
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