UGRMEM-01SNQ12 is a new type of Programmable Logic Controller PLC (Programmable Logic Controller) sunlight auto-tracking system, which not only can automatically adjust the orientation of solar panels according to the direction of the sunlight, with a simple structure and low cost, but also can automatically memorise and correct the position of the coordinates at different times during the tracking process, without manual intervention, which is particularly suitable for the tracking of solar panels. It can automatically remember and correct the position of coordinates at different times during the tracking process without human intervention, which is especially suitable for complicated weather changes and unattended situations.

The reliable operation of UGRMEM-01SNQ12 is of great significance to ensure the stability of the power system. Generator fault recording device recorded data for the staff to correctly analyse the cause of generator failure, study the accident countermeasures, timely treatment of accidents provides a reliable basis, at the same time, according to the fault recording data can also analyse the fault parameters of the system, the pattern of change of the electrical quantities, fault location, etc., which is to ensure the safe and reliable operation of the power system plays a very important role.

UGRMEM-01SNQ12 as a special computer for industrial control, due to its simple structure, excellent performance, good anti-interference performance, high reliability, in machinery, chemical, rubber, electric power and other industries, industrial control site has been increasingly widely used, industrial control site to carry out real-time control of the most important control device. This paper introduces a programmable controller and the expansion of analogue modules to achieve the generator fault recording method. The analogue quantities are converted by A/D, and then the unit operation quantities such as end voltage U, rotor current If, active power P and reactive power Q are calculated according to the conversion ratio of transformer and transmitter.