IO191 - Analog input
IO191 - Analog input —
Reads the IO191 analog inputs
Library
Simulink Real-Time - Speedgoat
Description
Your model can only contain one of these blocks for each I/O module in your target
machine.
Ports
This driver block has n double-type scalar output ports, where n is the number of
selected analog input channels. Each port (signal) returns the analog value in
volts.
If DMA is disabled, then the port width is 1. If DMA is enabled, then the width of the
output port is equal to the frame size and each element of this vector contains one
sample, where the value at position 1 was taken first.
Outputs
-
X (X is the analog channel number)
The value from analog channel X in volts.
Data Type:
double
Parameters
-
Module ID
This ID defines the link to the corresponding Setup block
- Sample Time
Defines the base sample time at which this driver block gets its
sample hit. This parameter can also be set to -1 for inherited sample time. The units are in
seconds.
Note For DMA operation, the Sample
Time is the time between frame completions. The value depends on the
Frame Size, the number of Active Channels, and the ADC Rate. In the
Setup block, Analog Inputs tab, when Enable
DMA is selected, Sample
Time displays its value.