Measurement-computing DAQFlex Bedienungsanleitung PDF herunterladen (Seite 36)

DAQFlex Message-based Firmware Specification Hardware Reference – USB-2408 Series

USB-2408 Series

The USB-2408 Series includes the following devices:

 USB-2408

 USB-2408-2AO

Use the components below to set or get device properties.

Refer to the DAQFlex Software User's Guide for a description of each component and property.

Component

Supported

Property/Command

Set/Get

Supported Values/Notes

ADCAL/START

Set

ADCAL/STATUS

Get

RUNNING, IDLE

RES

Get

A/D resolution

S24 (24-bit signed integer)

AI{ch}

CHMODE

Set/Get

SE, DIFF, TC/OTD, TC/NOOTD

SE is always returned for channels 8 to

15.

CJC

Get

DEGC, DEGF, KELVIN

DATARATE

Set/Get

3750, 2000, 1000, 500, 100, 60, 50, 25,

10, 5, 2.5 (S/s)

OFFSET

Get

4-byte floating point numeric

RANGE

Set/Get

BIP10V, BIP5V, BIP2.5V, BIP1.25V,

BIP625.0E-3V, BIP312.5E-3V,

BIP156.25E-3V, BIP78.125E-3V

SENSOR

Set/Get

TC/B, TC/E, TC/J, TC/K, TC/N, TC/R,

TC/S, TC/T

SLOPE

Get

4-byte floating point numeric

VALUE

Get

Unsigned integer numeric

AICAL

LOCK

Set

MODE

Set/Get

ENABLE, DISABLE

RANGE

Set/Get

BIP10V, BIP5V, BIP2.5V, BIP1.25V,

BIP625.0E-3V, BIP312.5E-3V,

BIP156.25E-3V, BIP78.125E-3V

REF

Set/Get

+78.125E-3V, –78.125E-3V,

+156.25E-3V, –156.25E-3V,

+312.5E-3V, –312.5E-3,

+625.0E-3V, –625.0E-3V,

+1.25V, –1.25V, +2.5V, –2.5V,

+5.0V, –5.0V, +10.0V, –10.0V

REFVAL/HEX

Get

The measured calibration reference

voltage (hex bytes) stored in EEPROM

memory.

RES

Get

A/D resolution

S24 (24-bit signed value)

UNLOCK

Set

AICAL{ch}

OFFSET/HEX

Set/Get

Double precision floating point numeric

(hex bytes); The channel is ignored.

SLOPE/HEX

Set/Get

Double precision floating point numeric

(hex bytes). The channel is ignored.

TCCAL

Set/Get

ENABLE, DISABLE

VALUE

Get

The value in counts of the AI channel

being calibrated.

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 45 46

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