frequency measurement via blocks

[OPS]

I have v570 with v200-18-e1b. I have 3 pulsers that I need to monitor frequency of. One falls into the high speed category so I am using the high speed counter on the v200-18-e1b. The other two are slow enough that I have incrementing an integer based off of the rising edge of the input. I need to accurately monitor the frequency of all 3. I have looked at the immediate frequency block but am not sure it will work. I understand that I can add a couple fo expansion modules that have the frequency measurement built into the hsc hardware. I hope to not do this. I would appeciate any help and or explanation of the immediate frequency block (assuming it will work for me).

thanks

[Joe Tauser]

It's easy to calculate your own frequency, but you need to be more specific when you say "slow enough". What is the maximum frequency you expect to see on the slow inputs?

Joe T.