Configures the Reference trigger for pattern match triggering. If the Reference trigger asserts before the required number of pretrigger samples are acquired, it is ignored. This node is valid only for acquisition sessions.
The channels that are configured for pattern matching using the pattern array value.
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 binary pattern that activates the pattern match trigger under the conditions specified in trigger when.
This string expression creates a mask for the pattern. This expression is composed of characters:
The first character in the expression corresponds to the first channel in channel list. The number of characters in pattern must correspond to the number of channels specified in channel list or an error is returned.
The conditions under which the trigger is sent.
Pattern matches | The trigger is asserted when the sampled pattern matches the pattern specified in pattern. |
Pattern does not match | The trigger is asserted when the sampled pattern does not match the pattern specified in pattern. |
Default: Pattern matches
The number of pretrigger samples the device must receive before the Reference trigger is acknowledged.
Default: 500
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