How to pass the sequence number of current loop in a for loop in FPGA vi to the host

Question

PCI-7830R
LV 8.2
What I was trying to do is to use multiple DIO to generate pulse at different sequence. Mode one is to automatically sweep from DIO1 to DIO20; mode 2 is several DIOs generate pulse simoutaneously.  So I use a case structure to make the selection, in the mean time, I set up two for loop in each case so that I can use multiple pulse generations. For example, in scanning mode, if I set 2 exposures, it sweeps from 1 to 20 then do it again.  
Then I need to get the loop sequence number, i of each scenario. So I put an indicator within the first loop, and create a local variable of it and put in the second one.  Running the FPGA vi alone, I can see the indicator change in each case from 0 to N-1, N being the for loop time.But in the host vi, I tried to add this indicator as an element in the read/write invoke method, in the debugging mode, I could only see it directly jump to N-1 without all the changes I saw in FPGA vi. 
Is it possible to get this number passed correctly from FPGA vi to the host vi? Thanks

Answer 1

Thanks for the reply Jared.
Excuse me if it looks incorrect, but I'm new to FPGA programming, so I would have to look into the FIFO you referred to.  I used local variables because for one thing I have several different cases containing for loop in each of them, and I only want one indicator for the "i".  If I put the indicator out of any for loop, it's only gonna show the last number which is N-1.  For the other thing, it seems like property nodes are not allowed in FPGA vi.  And by doing this, I can see the i number changing from 0 to N-1 in each case, well, in FPGA vi's front panel.  But while I ran the host vi with everything, the indicator in host vi's front panel only showed the last number N-1. It may be the reason you said, it happened too fast before the indicator in host vi can catch it.
What I want to realize is to group the data I collect in host vi, for example, when I choose multiple exposure in each mode, and the FPGA runs 1 through 20 then do it again, I want the data stored in two groups using the loop sequence number as the seperator in file name.  So it goes like 1-1, 2-1.......20-1; then 1-2, 2-2,.....20-2.