Signal converters today use a variety of data transmission and interface devices in process processing. Almost every process includes a control system for receiving data via analog signals or data transfers, then calculating the received data, scoping and setting appropriate parameter values. Whether the process control is safe and reliable mainly depends on whether there is disturbance and fault in the course of analog signal transmission and processing. However, in practical application, many problems may appear, which may interfere or hinder the ideal process control. ABB's serial data converter enables communication between units based on different communication standards. To ensure the continuity of process control, existing systems must be continuously upgraded or connected to new equipment. If the communication standard of the current system is different and the connected devices are different, the serial data converter can be used for communication. In addition to converting signals, analog signal converters and serial data converters are also suitable for signal amplification, filtering, or analog signal isolation. Serial data converter there are many kinds of data transmission processing and interface devices in the field of industrial data transmission. To ensure the continuity of process control, existing systems must be continuously upgraded or connected to new equipment. If your device does not have up-to-date communication capabilities, it is recommended that you use ABB's serial data converter to convert a standard RS232 / RS485 signal into an open ethernet signal or an optical fiber signal. Ethernet communication is one of the main functions of open communication. The e-ILPH provided by ABB connects the serial communications equipment to the communications network.