IO291 - LVTTL digital input
IO291 - LVTTL digital input —
Reads the IO291 LVTTL digital 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 no input ports. The number of output ports is determined by
the number of digital input channels selected, and the Port
Configuration setting.
The output ports can be configured in the following two ways:
1 port with an 8-element vector
One output port with a fixed width of 8 is used. The index of each array element
is equivalent to the channel number. Each element has a value of either 0 (Low) or 1
(High). Array elements for channels that have not been configured as digital inputs
remain 0.
1 port for each active input channel
For each channel configured as digital input, one port is added. Each port outputs
a scalar with a value of either 0 (Low) or 1 (High).
Data Type
Select either Boolean or Double as output data type.
Parameters
The configuration details are all defined in the Setup block.
-
Module ID
The Module ID has two functions:
It defines the logical connection between the Setup block and its I/O
blocks
It also informs the auto-search feature of the PCI Slot parameter. If
only one I/O module of this type is installed, the Module ID must be set
to 1. If n modules are installed, it
must be in the range 1:n. Not all the I/O modules installed in the
target machine need to be used. To see how each I/O module maps to a
Module ID, use this Speedgoat API:
speedgoat.getIoInterfaces("TargetName", "mySpeedgoat")
-
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.
-
Port Configuration
Select one of the two available port types.
-
Data Type
Select the data type of the block output signals.