Sync Multiple Counters

[peter]

Hello,

I want to start 3 counters on a 6624 board simultaniously. The counters should count edges from 3 diffrent sources. I am using Labview 8.0.1

Can I start those 3 counters with a software generated signal (I have no external HW Trigger)?

I was thinking about something like you start an AI and AO operation simultaniously. But it seems that there is no corresponding trigger event (ai/StartTrigger) for counters available.

Thank you for your help in advance,

Peter

[MichaelP]

Hello,

you have no software trigger like ai/StartTrigger which you can use. Attached you can find an example where 3 counters will be started from a 4. counter. The 4. counter generate a puls. The 3 counter are configured with a pause trigger.

If you use this example be careful, the 6624 has inverted logic (see manual,

TIO Series -> Device-Specific Information -> NI 6624 -> Input).

For the 4. counter you need separate Source voltage (see manual) to generate the puls.

hope this helps

Michael

[peter]

Thanx Mike,

worked great

Peter