It goes by the card, Bob.
There is an ATM transaction limit - 10,000 in Cabarete if I recall, it can vary branch to branch - but you just keeping hitting it for 10 until you hit your card's limit.
Mine is topped at $1,000CAD daily - $3,000CAD max for the week. (It's a Scotia card)
I had it 'upped' a couple of years ago to reduce my wire transfers... just call your branch, the manager can do it.
They know I live in RD, so I don't need to inform about my comings and goings.
In Cab - one machine gives out 200 peso bills up to 5,000 and the other has the 10,000 limit in 500's
Avoid the midget money one - on the left , I think.