xPC Target | ![]() ![]() |
PCI-DAS1602/16 Digital Output
Use the PCI-DAS 1602/12 digital output driver block.
The DAS1601/16 has a 8255 chip with 3 ports (A,B,C). Each port has a maximum of 8 digital I/O lines that can be configured as inputs or outputs.
Use a separate diver block for each port. By selecting the digital output driver block, the port is configured as output.
Scaling of Input to Output
Hardware Output |
Block Input Data Type |
Scaling |
TTL |
double |
< 0.5 = TTL low > 0.5 = TTL high |
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
[1,2,3,4,5,6,7,8]
Number the lines beginning with 1 even if the board manufacture starts numbering the lines with 0.
Port - From the list choose either A, B, or C. The I/O board has a 8255 chip with 3 ports. The port name defines which port of the 8255 chip is used for this driver block. Each port has a maximum or 8 digital lines that can be configured as inputs or outputs depending on which driver block is chosen. In each case, one block is needed for each port.
Sampletime - 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
-1
If two or more boards of this type are physically present in the target PC, enter the PCI slot number of the board associated with this driver block.
![]() | PCI-DAS 1602/16 Digital Input | PCI-DDA02/12 | ![]() |