xPC Target | ![]() ![]() |
The PCI-6527 has one chip with 3 ports (A,B,C) for digital output. Each port has a maximum of 8 digital output lines. Use a separate driver block for each port.
Scaling of Input to Output
Hardware Output |
Block Output Data Type |
Scaling |
OPTO |
double |
<0.5 = OPTO is OFF, no current flowing >0.5 = OPTO is ON, current can flow |
Driver Block Parameters
Channel vector -- Enter numbers between 1 and 8 to select the digital output lines used with this port. This driver allows the selection of individual digital output lines in any order. The number of elements defines the number of digital lines used.
For example, to use all of the digital outputs for one port, enter
Number the lines beginning with 1 even though the board manufacturer starts numbering the lines with 0.
Port -- From the list choose either A
, B
, or C
. The Port parameter defines which port is used for this driver block. Each port has a maximum or 8 digital output lines. In each case, one block is needed for each port.
The documentation for this board from National Instruments labels these ports 3, 4, and 5.
Reset vector -- 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 used for all channels. 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.
Initial value vector -- 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 the initial value for all channels. The channels are set to the initial values between the time the model is downloaded and the time it is started.
Sample time -- Enter a base sample time or a multiple of the base sample time.
PCI Slot (-1:autosearch) -- Enter a number between -1 and n. If only one board of this type is physically present in the target PC, enter
If two or more boards of this type are physically present in the target PC, enter the bus number and the PCI slot number of the board associated with this driver block. Use the format [BusNumber, SlotNumber]. To determine the bus number and the PCI slot number, type
![]() | PCI-6527 Digital Input | PCI-6703 | ![]() |