The wastewater treatment is a process operated to convert wastewater into an effluent that can be returned to the water cycle with minimal impact on the environment. PLC or DCS control systems are used in various sewage treatment plants to achieve accurate control of various technological processes and fault handling in case of faults.

The automatic control loop is mainly composed of a monitoring system, a communication system, a PLC/DCS control system and a detection instrument, which realizes the decentralized control and centralized management of the sewage treatment process. Faults such as faulty actions, abnormal communication, data errors, etc., may cause the equipment to stop in serious cases.

What are the main sources of interference in the PLC control system？

Include from space, power supply network, grounding system and signal line.

There are many interference factors that affect the PLC control system. It is the key to the reliable operation of the entire system. In order to improve the anti-interference ability of the equipment, we need to be equipped with a signal isolator to effectively enhance the anti-interference ability of the system.