Neural coupling between Pinsky-Rinzel (reduced Traub) neuron with a Wang-Buzsaki neuron?
There is no straightforward answer to this.
It completely depends on the properties of the neurons and the network they are in.

I would recommend you to study Central pattern generators. Those are usually small networks that can create a repetitive pattern of action potentials. However, the exact pattern they generate depends on how they are connected (number and type of synapses, network structure,...) and a presumably large number of neuronal properties (like the conductance, the shape of their dendrites, the expression level of various ion channels and all kinds of intracellular messengers/peptides/proteins/molecules). For example, there are "leaky" ion channels that can cause a neuron to spontaneously depolarize (and fire action potentials) regularly without requiring any synaptic input. This means that you can have a regularly firing neuron even without network feedback mechanisms. example

There are many different rhythms in the brain and they are all generated by smaller and/or larger networks of neurons with different properties. Neurons can even participate in multiple different rhythms, depending on the situation (e.g. theta rhythm vs. SPWs in the hippocampus). Thus, even the same neurons in the same network can generate different rhythms.

So, the rhythms that you can build depend on how you tune the neurons' properties and the way they are connected. With just the information you provided (simulated excitatory and inhibitory neurons, but no info on their excitability, network,...) I can't tell you what the resulting rhythm will look like.

I'm afraid I didn't really answer your question, but I hope this was still helpful.