Immediately reads all PFI channels configured for static acquisition. The least significant bit of read data corresponds to the lowest physical PFI channel number.
You can configure a channel for static acquisition using the Assign Static Channels node. Channels not configured for static acquisition return a zero. Channels that do not exist on the hardware also return a zero.
Values obtained from static read operations are affected by the data interpretation parameter of the Configure Data Interpretation node.
Error conditions that occur before this node runs.
The node responds to this input according to standard error behavior.
Standard Error Behavior
Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.
Default: No error
The returned bit value of data read from PFI channels configured for static acquisition.
The least significant bit of read data corresponds to the lowest physical channel number. For example, bit 0 corresponds to PFI0, and bit 31 corresponds to PFI31, if that channel exists on the hardware.
If read data returns a value of 0x000F, channels PFI0 to PFI3 are logic one and the remaining channels are logic zero or are not configured for static acquisition.
If read data returns a value of 0xFFF0, channels PFI4 to PFI15 are logic one and the remaining channels are logic zero or are not configured for static acquisition.
Error information.
The node produces this output according to standard error behavior.
Standard Error Behavior
Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.
Where This Node Can Run:
Desktop OS: Windows
FPGA: Not supported
Web Server: Not supported in VIs that run in a web application