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Scpi data formats – AMETEK Lx Series II Programming Manual User Manual

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Programming Manual

Lx \ Ls Series II

18

2.6

SCPI Data Formats

All data programmed to or returned from the AC source is ASCII. The data may be numerical or
character string.

2.6.1 Numerical Data Formats

Symbol

Data Form

Talking Formats

Digits with an implied decimal point assumed at the right of the least-
significant digit. Examples: 273

Digits with an explicit decimal point. Example: .0273

Digits with an explicit decimal point and an exponent. Example: 2.73E+2

Boolean Data. Example: 0 | 1or ON | OFF

Listening Formats

Extended format that includes , and . Examples:
273 273. 2.73E2

Expanded decimal format that includes and MIN MAX. Examples:
273 273. 2.73E2 MAX. MIN and MAX are the minimum and maximum
limit values that are implicit in the range specification for the parameter.

Boolean Data. Example: 0 | 1

Class

Suffix

Unit

Multiplier

Amplitude

V

Volt

MV (millivolt)

Current

A

Ampere

MA (milliamp)

Frequency

Hz

Hertz

KHZ (kilohertz)

Time

s

second

MS (millisecond)

Common Multipliers

1E3

K

kilo

1E-3

M

milli

1E-6

U

micro

Table 2-1: Command parameters Suffixes and Multipliers

2.6.2 Character Data

Character strings returned by query statements may take either of the following forms, depending
on the length of the returned string:

Character Response Data. Permits the return of character strings.

Arbitrary ASCII Response Data. Permits the return of undelimited 7-bit ASCII.
This data type has an implied message terminator.