Functions and application scenarios of RTU

Functions and application scenarios of RTU

Function of RTU

1. Provide multiple digital interfaces and multiple analog interfaces;

2. Collect the status data and send it to the remote, with photoelectric isolation, and priority transmission of the remote signal displacement;

3. Collect data volume and send to remote, with photoelectric isolation;

4. Directly collect the power frequency power of the system, realize the measurement of voltage, current, active power, and reactive power and send it to the remote, and calculate the forward and reverse power;

5. Collect the pulse electrical measurement and send it to the remote, with photoelectric isolation;

6. Collect event sequence records and send to remote;

7. Receive and execute remote control and return to school;

8. Accept remote commands and choose to send various types of information;

9. Can be remote/local settings;

10. Program self-diagnosis and self-recovery.

Application scenarios of RTU

Compared with the commonly used programmable controller PLC, RTU usually has excellent communication capabilities and larger storage capacity, is suitable for harsher temperature and humidity environments, and provides more computing functions. RTU products are widely used in SCADA systems in industries such as oil and gas, water conservancy, power dispatch, and municipal dispatch.

Nowadays, RTU technology is developing in the direction of intelligence. The intelligent RTU can automatically determine whether the acquired data needs to be reported to the central control station immediately, or it can be temporarily retained locally for later transmission, or until the central control station requires it to be transmitted.

The intelligent RTU can automatically detect the interruption of communication, and immediately start to save the data in the memory, so that the communication network can be used most effectively. The intelligent RTU can also transmit those key data to several central control stations at the same time. In addition, since security is the biggest problem in current communication networks, intelligent RTU can encrypt data before transmission, and it can also deny access from unknown addresses.