Gw-instek LCR-800 Series Manuel d'utilisateur télécharger pdf (Page 44)

PROGRAMMING

Command overview lists all the LCR-800

commands and command queries. The command

syntax section shows you the basic rules you have

to apply when using commands.

Command Syntax

Command

Background

There are a number of different instrument

commands and queries. A command sends

instructions or data to the LCR meter and a query

receives data or status information from the LCR

meter. Measurements are automatically sent when

a measurement is made in manual or automatic

mode.

Command Types

Command

Two or more commands

separated by a colon (:)

with/without a parameter

Example

MEMO:STOR 100.<^END^M>

Query

A query is a compound

command followed by a question

mark (?). A parameter (data) is

returned.

Example

SORT:NOMV?<^END^M>

Measurement

Returns measurement data. Can

be manually or automatically

updated.

Example

MAIN:PRIM 32.705<^END>

LCR-800 User Manual

Command forms

Commands and queries can be written in either

ASCII or hexadecimal.

Below are examples of ASCII and hexadecimal

commands

ASCII

SORT:NOMV +32.0000< ^END^M

> or <^J^M>

Hex

53 4F 52 54 3A 4E 4F 4D 56 20 2B 33 32 2E 30 30 30 30

0A 0D

Command format

1: command header

2: single space

3: parameter

4: message terminator

Parameter Type Description Example

Character string SLOW

<NR1>

Integers 0, 1, 2, 3

number data 0.1, 3.14, 8.5

Message

terminators

<NL^END>

<NL^J>

New line or ASCII line feed

character (HEX 0A)

<CR^M>

Carry return character (Hex 0D)

Input | Output

value differences

The format of the input and output values differ

somewhat when dealing with positive values. The

total amount of characters used for each variable

depends on the command/query.

Number ASCII HEX

Input

1.0000 +1.0000

2B 31 2E 30

30 30 30

Output

1.0000

1.0000 20 31 2E 30

30 30 30

Input

-1.0000 -1.0000

2D 31 2E 30

30 30 30

1 2 ... 39 40 41 42 43 44 45 46 47 48 49 ... 71 72

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Gw-instek LCR-800 Series Manuel d'utilisateur Page 44

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