quanser.hardware.hil.read_analog_write_analog

navigation bar

Reads from the specified analog input channels and writes to the specified analog output channels.

Syntax

[input_voltages, err] = board.read_analog_write_analog(input_channels, output_channels, output_voltages)

Description

Reads from the specified analog input channels and writes to the specified analog output channels. Channel numbers are zero-based. The write operation is performed immediately after the read operation (generally performed at the hardware or device driver level so the operations are virtually concurrent).

If no err output is provided then it throws an exception if an error occurs. In generated code it prints the error message. Use hil_get_error_message to get the message associated with an error code.

Parameters

board

The board instance returned by the quanser.hardware.hil.open function.

input_channels

A vector of input channel numbers. Channel numbers are zero-based.

Select a board type from the list for board-specific details: .

output_channels

A vector of output channel numbers. Channel numbers are zero-based.

Select a board type from the list for board-specific details: .

output_voltages

A vector of analog voltages. There must be one element for each output channel.

Outputs

input_voltages

A vector of the analog voltages read, as doubles. There will be one element for each input channel.

err

A negative error code or zero on success.

Examples

% Writes 0.5V to analog channel 5 while reading from analog channels 0 and 3
voltages = board.read_analog_write_analog([0 3], 5, 0.5);