Virtual instruments, Library vis, M30 cluster – Crystal 30 Series Digital Pressure Calibrator User Manual

Page 5

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Virtual Instruments

3

30 Series LabVIEW Drivers Manual

Virtual Instruments

LIBRARY VIS

The Model 30 LabVIEW library contains all the VIs that control and collect data from the instrument. Each of the library’s VIs are documented below. Each of

the VIs has VISA handles or error clusters as inputs and outputs, and more information on these elements can be found in the LabVIEW documentation. Inputs
or outputs specific to this library are documented below.

In addition, there are two VIs that are not considered part of the library, but are provided as example VIs that uses the library. These VIs are documented in the
Sample VIs section below.

The VIs

M30 Test & Parse Data.vi, M30 Parse & Assign Data.vi, and M30 Parse 31-Byte Block.vi are internal functions used by M30 Collect Data.vi, and are not

documented here. However, their block diagrams are included if you wish to browse through them.

M30 CLUSTER

The M30 Cluster has the following elements:

Value

Format

Description

P1

Double

P1 pressure value as displayed on the front panel

P1 ADC

32-bit signed integer

The raw P1 pressure value from the analog-to-digital converter

P1 Tare

32-bit signed integer

The value subtracted (tared) from the P1 ADC value prior to a conversion to pressure.

P1 Temp

32-bit signed integer

The raw P1 temperature value from the analog-to-digital converter

P1 Range

16-bit signed integer

The selected range (units) of the P1 sensor

P2

Double

P2 pressure value as displayed on the front panel

P2 ADC

32-bit signed integer

The raw P2 pressure value from the analog-to-digital converter

P2 Tare

32-bit signed integer

The value subtracted (tared) from the P2 ADC value prior to a conversion to pressure.

P2 Temp

32-bit signed integer

The raw P2 temperature value from the analog-to-digital converter

P2 Range

16-bit signed integer

The selected range (units) of the P2 sensor

mA

Double

mA value as displayed on the front panel

mA ADC

32-bit signed integer

The raw mA value from the analog-to-digital converter

Battery

16-bit signed integer

Three values: -1 = dead, 0 = low, 1 = good

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