Our company is evaluating Zenon as our common HMI platform for all machines. In our standard machine range, we use either Rockwell Controllogix or B&R PLC, based on customer request. Both PLC has been programmed now in structured text and using same variable names in the codes. Is there a way I can have one Zenon project, in which i can select whether to use Rockwell or B&R PLC, without losing the link to the variables? I think it should work since the PLC variables names are the same right?

If this cannot be done, then we may have to resort to a gateway like Kepware to always provide the same variables to Zenon, irregardless of the PLC connected. And in this case, I supposed we have to connect to Kepware using OPC driver, is that right?

Thank you for your help.