The EZ-ZONE PM controller provides a range of serial communication choices, including EtherNet/IP, Modbus RTU and Modbus TCP. It gives users the option to configure a panel mount controller as a high-amperage power controller output with a high-performance PID controller or an over/under limit controller. The Series PD process controller utilizes embedded Ethernet technology to provide a means for setting up and viewing key process variables. It is suited for a selection of temperature and process control applications. The EM gateway offers Ethernet connectivity for existing devices that communicate via the Modbus RTU protocol on an RS-485 network. Watlow Electric Manufacturing Co.