AO+ 2 counter tasks of PCI-6110

Hello

I'm trying to get synchronized analog output task and pulse counting of two counters using PCI-6110,

meaning generate an AO signal first then count incoming pulses at two different counters simultaneously.

After searching this forum and testing some methods, (like https://decibel.ni.com/content/docs/DOC-5779 and https://decibel.ni.com/content/docs/DOC-11755)

 I thought that this PCI card is not suitable for my purpose.

It seems impossible to trigger the counters in S series DAQ device.

I'd like to know whether this is true or not and

If so, which additional counter should I buy and connect it to PCI-6110 through a RTSI bus cable?

Thank you for your time.