The Latch logic block holds a Boolean True value until you command it to reset. Latch blocks help capture rapidly changing binary states that might otherwise be missed. For example, use this block to capture alarm conditions. The Reliability associated with the Latch block always reports as Reliable.
The following table describes the inputs and outputs of the Latch logic block.
|
Name |
Data Type |
Exposed for Connection by Default |
Description |
Default Value |
|---|---|---|---|---|
|
Inputs |
||||
|
Input |
Boolean |
Yes |
Provides the Boolean value that causes latching of the output when it is set to True. |
False |
|
Reset |
Boolean |
Yes |
Provides the Boolean value that resets the output to False when this value is set to True. |
False |
|
Outputs |
||||
|
Present Value 1 |
Boolean |
Yes |
Indicates the output of the block. |
False |