LabVIEW copy function of conditional structure and event structure

When writing a medium-sized program, state machines and event structures are common design patterns. SR (SHIFT REGISTER) is often used to transfer data between various cases. When there are many cases, it is often the case that SR is forgotten to be connected or a new SR needs to be added. This is very troublesome and requires switching between dozens of cases and rewiring.

LV's case structure and event structure have a very important function "case or event copy function". With this function, the above problem can be easily solved.

When designing a program , some SRs must be reserved. When not in use, set them to BOOLEAN type, which will not take up a lot of memory space.
For conditional judgment, SR can be set to BOOLEAN ARRAY, so that an SR can represent the state of multiple bits, which is equivalent to the M intermediate relay of PLC.

For common structures, they should be stored as templates (.VIT). The following is a template for a continuous single loop. Taking


the case structure as an example (the event structure method is the same)


, all SRs can be automatically connected by copying. When using the state machine, a "BLANK" is often designed. Blank CASE, this CASE does not perform any actual operation, the only function is to be a copied CASE, the proper use of the copy function can greatly improve programming efficiency.