dac script question

[jonno]

hi there,

i'm in the process of writing my own DAC scipt which is working all OK but i have one quibble which maybe someone here would be able to shed some light on...

we all know the 500/min and 216000/day limits, but i'm just wondering how you stick to them? i mean, how do you tell your script to run for example, 500 times a minute?

is it just a case of approximating an average response time for each reply and using that as a ballpoint figure or is there a "realtime" way of doing it that people employ?

i understand people keep their secrets under their belts around these parts but any suggestions would be appreciated

thanks.

Jonno.

 

[retired_member9]

why do you want to ask this?
some things you need to figure yourself.
try and do how it's better suits you..

 

[bb99]

I suppose there's two ways you could do it.

Firstly, you could assume the DAC always takes the same amount of time to respond. Let's say it's 50ms. If you're wanting to run for 24 hours then you need to query and get a response every 400ms. So the easy way is to wait approx 350ms after every query using some form of pause/wait function.

Secondly, you could do this:

- Start time = A
- Query DAC
- Get Response
- End time = B
- C = B - A
- If C > 400ms then start again (because it took longer than 400ms so no need to wait)
- Else wait for (400 - C)ms and then start again


Or you could do something completely different!

 

[jonno]

yeah that concept sounds a better way of going about it...

i'll have a play around and see what i can cook up

thanks