Best practices for complex recipe-based system?

Hi Folks,
I'm at about the intermediate level (working on my CLD), and tasked with re-vamping a tighly-developed control system(which I'm intimately familiar with) into more of a configurable 'recipe'-based system. Basically the current front-end control software does a lot of the work for the end user - it pre-defines flows, assumes certain electrical/plumbing configurations, etc. This is fine for the 'production floor', however the R&D guys would like something a bit more configurable.
This system comprises of several flow controllers, mostly controlled/monitored via analog I/O (compact FieldPoint). There's some static analog input channels devoted to temp, humidity, etc. There exists the possibility of 1-2 external RS232 metering devices as well.
Anyway I'm trying to work out the foundation for the UI. In terms of architecture think a que-ed state machine is my best bet due to the number of parallel processes occuring at once (analog acq, multiple serial comm, TDMS, UI, etc). Basically I'd like the user to be able to add/remove/modify 'steps'. For instance, "Set Flow: controller IDx, 20cfm", or "Time Delay, Static: 10:00", "Time Delay, Psuedo-Static, based on X".
I've worked out a configuration UI (utilizing the in-build NI configuration storage VIs) to associate the analog channels to external devices (ie Aout1="Controller1 SP", Ain1="Controller1 FB"). Later I'll populate a ring control, for instance, for the 'add SetFlow step', to list all of the analog OUTs for selection.
So I guess what I'm looking for is advice on passing all this info around without having to re-hash it all the time to present to the user. Keeping in enum/ring allows for easy user viewing, changing, and block diagram readbility (vs string constants, which are error prone) - is this something that the 'flatten to string' would be helpful for (something I have no experiance using).
What tips can you provide for moderate-complexity HMI control systems developed strictly in LV? We currently don't have DSC, and I'm a bit closed-minded about using it for this (but perhaps you can convince me otherwise?).
Thanks for your time,
Jamie
Message Edited by 8bitbanger on 04-21-2010 08:10 AM
v2009 devel. w/RT

Cool, thanks for the screenshot!
This request for more customization was anticipated, so I began working things in last year with other minor revs. The first was this 'hardware configuration' utility. Right now I'm only using the MFC Config page for channel scalling/name info. (the production version still relies on 'static' channel associations to control devices). The enum 'card/slot' selector does exactly as you mentioned - it controls a tab value, which loads other pages (with similar info).
The second 'generator' page is used to populate a list of generators available for the user to select, and works quite well - users can add somewhat custom generators to the list w/out having to specify "custom" every time (and I don't have to rebuild to add such a simple thing).
You can see the 'Flow Control' and 'Monitor' channel that have not yet been implimented. :-)
Lastly the mockup is where I want to end up. I *wish* that labview was able to incorperate enum/ring drop-downs within a table cell (without the hacks that I've seen suggested).
I intended to setup a similar format for the 'steps' - an Action (or noun as you say), Target (ie file path, device name, etc), Value (setpoint, other pertinent data), etc. Do you pass this info around as a cluster in your VI then simply parse out to the UI in the steps listing? My hurdle is how to ellegantly relate, say, a CSV file back to the enums without a lot of hard-coded (constant) strings.
Cheers,
Jamie
::edit:: *Finally* found the button to insert images... ::edit::
Message Edited by 8bitbanger on 04-21-2010 10:30 AM
v2009 devel. w/RT
Attachments:
config_UI.JPG ‏52 KB
generators.JPG ‏39 KB
mock-up.JPG ‏33 KB

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