* Question What are the outside of the system? * Answer (1) DMA controller (2) Vector interrupt controller (3) TrustZone protection controller (4) Timer with PWM (pulse width modulation) (5) 16-bit wa ...
* Question Compared with PLC band-pass couplers, transformer coupling circuits are widely used in low-voltage PLCs. Why? * Answer Mainly because: 1 transformer current can isolate the power line netwo ...
* Question Briefly describe the origin of PLC? * Answer In 1969, the United States’ Digital Equipment Corporation (DEC) developed the first programmable controller. In 1971, Japan, Germany, the ...
* Question How does the vacuum bellows intake pressure sensor work? * Answer This manometer drives the electronic sensor based on pressure changes.The bellows of the bellows manometer is welded by a t ...
* Question What are the detection methods for Resistorss and potentiometers? * Answer (1) Appearance inspection For the fixed resistance, first check the mark is clear, the protective paint is intact, ...
* Question What is the working state of the process statement in VHDL? * Answer In VHDL, a process statement has two working states: a wait state and an execution state. ...
* Question What are the two functions of the preamplifier of the piezoelectric sensor? * Answer The preamplifier of the piezoelectric sensor includes two functions: one is to amplify the weak electric ...
According to the measurement of the displacement object, the inductive synchronizer can be divided into why? Looking for capacitors online purchase? is a reliable marketplace to buy and learn about ca ...
* Question Briefly describe the origin of PLC? * Answer In 1969, the United States’ Digital Equipment Corporation (DEC) developed the first programmable controller. In 1971, Japan, Germany, the ...