EZ-Zone can be utilized as a communications gateway device to save space and wiring when digital communications are being used with two or more controllers. With an option for Class 1, Division 2, temperature class T4A for use in hazardous locations, the remote user interface can also serve as a display to show all parameter values for up to 16 controllers. It can deliver multiple communication protocol options and connect the controllers to communication networks utilizing Modbus RTU, DeviceNet, EtherNet/IP, Modbus TCP and PROFIBUS DP.