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Found 5 results

  1. I have to develop an application and I would like some help designing the architecture. The system controls a number of pumps and valves to create flow around a network of pipes. There are flow meters in the network which are used as feedback for PID to maintain a flow. The network of pipes is gradually opened up to get flow and then PID kicks in to maintain a flow. The test sequence is pretty much a big state machine. For example: 1. Open valve 1 2. Wait for pressure to build 3. Ensure temperature is not over limit 4. Etc I will have a number of differe
  2. Hello, I have done a few applications with the JKI State Machine, however I can never find a way to get into the "", "Idle" state in order to scan for Events. I tried passing various strings such as "", Idle or use an intermediary case event. Also tried modifying the Timeout on the event case. There's already an Event Case inside of JKI SM, so why would we need to add a another loop in order to control it as a Producer-Consumer for the front Panel to be responsive? I don't think the implementation of the Producer-Consumer on http://forums.jki.net/topic/1347-jki-state-machine-produ
  3. I downloaded the JKI state machine toolkit and it's quite neat. For eons, I have been using state machines following a very similar structure, but always with enums instead of strings. In simple state machine, each state would define the next one (no queue), and in more complex ones, a queue would be used to allow some states to enqueue several ones (and some wouldn't enqueue anything). But always with an enum or a queue of enums, since it seemed this would prevent typos, and allow renaming a state at only one place (the enum typedef). However I am tempted to make the switch since I see th
  4. I am working on some labview code that I really want to use OOP. I have some classes, ie, motor, relay, potentiometer, etc that I am using and wanted to incorporate in a state machine. I wonder if there are some good examples of this? I found a thread on here discussing it http://lavag.org/topic/13064-object-based-state-machine-pattern/ , but I am not clear if it answers my question. 1. When I try to wire a class into a state machine (while loop with a case structure), I always get a broken wire in the while loop. It says the wire type is different? Am I thinking of this incorrectly. I ha
  5. Hi all, I'm trying to figure out the most efficient way to use a parameter table in a state machine. Currently, I have converted the ~3x50 element parameter table into an array of the same size. The indexing element in this case happens to be a frequency. At each frequency I need to run the primary action/test. In order to carry the current index through the test I am pulling the row out of the original array and placing it into a separate array that I'll call "Current Freq Index," perform the action, and then pull the next row, etc etc. I like the modularity of the simple state machine bu
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