PMC-ADADIO Analog Output Write block (not recommended)
Simulink® Real-Time™ Library of Drivers No Longer Recommended for Use.
To open this library, type
xpcobsoletelib in the Command
Data from 1 to 4 input data streams is written to the digital to analog output registers when the enable port also receives a true value. If the enable port is not used, then it is assumed to be set to true. The output registers are held and not written through to the output converters until the analog output update block is executed.
I/O Module Output
Block Input Data Type
The values passed to the enable input port and enable output port of this block are Boolean values.
Enter a vector of numbers between 1 and 4 to select the analog output lines to drive. Number the lines beginning with 1 even if this board manufacturer starts numbering the lines with 0.
The reset vector controls the behavior of the channel at model termination. Enter a
scalar or a vector that is the same length as the channel vector. If you specify a scalar
value, that setting is replicated over the channel vector. If you specify a value of 1, the
corresponding channel is reset to the value specified in the initial value vector. If you
specify a value of 0, the channel remains at the last value attained while the model was
running. For example, if Channel vector is
[ 2 3 ]
and the Reset vector is
, the action taken will be
the same as if Reset vector was set to
[1 1]. Both
channels will be reset to their initial values when model execution is stopped.
The initial value vector contains the initial voltage values for the output channels.
Enter a scalar or a vector that is the same length as the channel vector. If you specify a
scalar value, that value is replicated as initial value over the channel vector. The channels
are set to the initial values between the time the model is downloaded and the time it is
started. When model execution is stopped, the corresponding position in Reset
vector is checked. Depending on that value, the channel is either reset to the
initial value or remains at the last value attained while the model was running. For example,
assume that Channel vector is
[2 5 8],
Reset vector is
[1 0 1], and Initial value
[2.3 5.6 0]. On initial download, channel 2 is set
to 2.3 volts, channel 5 to 5.6 volts, and channel 8 to 0.0 volts. When the model is stopped,
channel 2 resets to 2.3 volts, channel 5 remains at the last value attained, and channel 8
resets to 0.0 volts.
From the list, select
±2.5V as the output voltage range of the board. You must select the
range that corresponds to the factory configured output range. Consult the manufacturer
documentation to determine the voltage range of your board. The
Real-Time software uses this parameter to convert the data from floating point numbers to
The PMC-ADADIO can check its own calibration (autocalibration) against an internal voltage reference. Choose this check box to execute the autocalibration cycle when the model is downloaded to the target computer. The output ports show a square wave during the cycle. Unless you subject this board to harsh conditions, you should only need to run autocalibration occasionally— for example, once a month.
The calibration cycle takes several seconds to run. Refer to the manufacturer documentation for further information on autocalibration.
Select this check box to display an input enable port that controls writing data to the D/A ports on the I/O module. If the enable input signal is true, then the block input data is written to the D/A ports. If the enable input signal is false, then data is not written to the D/A ports and the output remains at the previous value. If this check box is not selected, then the enable input signal is assumed to be true.
Select this check box to pass the Boolean value from the input enable port to the output enable port. You can connect this port to the input enable port on another block to control other blocks in the model and specify execution ordering.
Enter the base sample time or a multiple of the base sample
-1 means sample time is inherited).
If only one board of this type is in the target computer, enter
locate the board.
If two or more boards of this type are in the target computer, enter the bus number and the
PCI slot number of the board associated with this driver block. Use the format
To determine the bus number and the PCI slot number, type:
tg = slrt; getPCIInfo(tg, 'installed')