dioread (MathScript RT Module Function)

LabVIEW 2012 MathScript RT模块帮助

版本日期:June 2012

产品编号:373123C-0118

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(仅限Windows)

Owning Class: daq

Requires: MathScript RT Module (Windows, Linux)

Syntax

data = dioread(device, channel, lines)

[data, error] = dioread(device, channel, lines)

Description

Acquires exactly one sample from each of the lines of a given digital channel on a specified device.

Examples

Inputs

Name Description
device Specifies the device name. device is a string.
channel Specifies the channel from which to acquire samples. channel is a positive integer.
lines Specifies the lines of channel from which you want to acquire samples. lines is a vector of positive integers.

Outputs

Name Description
data Returns the acquired samples from each of the lines in channel. data contains numeric values of 0 or 1. data is a real vector of the same size as lines.
error Returns 0 if the data acquisition task is successful. Otherwise, this function returns -1. error is a scalar.

Details

The following table lists the support characteristics of this function.

Supported in the LabVIEW Run-Time Engine Yes
Supported on RT targets Yes
Suitable for bounded execution times on RT Not characterized

Examples

DEVICE = 'Dev1';
CHANNEL = 0;
LINES = 0;
DATA = dioread(DEVICE, CHANNEL, LINES);

Related Topics

aich
aiwf
aoch
aowf
diowrite

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