Depends which HMI, but a quick look at there website un der
HMI > EZTouch > FAQ's > Does the HMI support AB Plcs
Answer
Yes, they support any Micrologix,SLC, or PLC5 series PLC serially,that supports either DH485/AIC or DF1 Protocol.
There are also models available with option cards to support AB Remote I/O or DH+, Devicenet,Ethernet/IP (Controllogix, Compactlogix).