Q:What is the difference between the inherent opening time and the full disconnection time of the high voltage circuit breaker?

Inherent opening time: no load time Full breaking time: with load opening time = no load sub-gate time + arc time

Q:1, how can the length of a switch in the PLC to control the length of the output voltage? The longer the input switch closure time, the higher the output voltage, which type of PLC to choose? 2, in the input to a signal, the PLC internal program can control the output voltage from a specific value of a linear transformation to another value? 3, PLC can directly drive the load? The load is a DC solenoid with a power of 30W.

The first question, here to use the PLC's analog expansion module, in the PLC by a switch the length of the closing time to control the output voltage level, you can use the timer in the program, the switch closed time to time, Time to reach a certain range, the program set the output voltage for the analog value, the longer the output of the analog voltage value is greater, as to choose the kind of PLC that there is no fixed index, because the major Mainstream manufacturers are equipped with analog modules of the expansion module, such as Siemens, Omron, Mitsubishi, etc., personally recommend the use of Siemens, Germany's product quality is excellent. The second question, where the input signal input is divided into two kinds, one digital, the second is the analog, which depends on what your input signal is specific, by the PLC internal program control output voltage by a The specific value is linearly transformed to another value, where it is first necessary to create a specific value for it and then change the refresh of your input signal to another value, where the program is achievable and, of course, A timing problem, but the timing unit by you, to be a linear time is naturally as short as possible, each scan cycle can refresh the output can solve this problem. The third problem, can not, the general PLC output is not used to drive the load, because the current is too large will damage the output point, which is a protective measure, it is not allowed to directly drive the load The above answer may be some missing or wrong, the shortcomings also hope that the sea Han, hoping to help you

Q:Through the control of the time control switch on and off

? If you do not understand the electronic technology, just want time to control a switch, and now there are finished microcomputer timer switch can choose a lot of features and practical, Taobao search to find out about.

Q:Ps-on signal alone to start the power supply, then there is a trip, who help analyze what is the reason!

Eliminate the power problem, it is certainly the motherboard problem.

Q:Kg316t microcomputer time switch how to change the previous switch time

1, the factory time control switch has been set a good time, if you need to set their own time, just hold down the "clock" button do not release, and then press the "week" can set the week, press "time" can set the hour, "Can be set in minutes. 2, the control switch can be set up to 10 hours of opening and closing, that can be set every day 10 time period of the switch.

Q:How does the timer switch set the time?

2, the timing of the opening time and timing of the set 2-1 Press the "Timer" key for 3 seconds to enter the timer setting mode; 2-2 The screen display -: - op (op is the timer on time) At this time, the hour bit flashes, press ? or ? key to adjust the timer to turn on the hour, and then press the "Timer" key to adjust the turn on time; (At this time automatically set the time to complete); 2-3, after the opening time is set, and then press the "Timer" button, the screen shows -: - du (du for the delay off the length), then the minute bit flashing, (Special Note: the current screen only minutes Bits and seconds) Adjust the number of minutes of the required delay time by ? or ? key, and then press the "Timer" key to adjust the number of seconds (the first set of time and time settings is completed) The The maximum length of each time can be set to 90 minutes, the shortest can be accurate to 5 seconds, for more than 90 minutes, you can take a number of time periods overlap time (that is, the second paragraph of the timing set in the first time Off time before) to achieve 24 hours a day of any time set; 2-4, short press "OFF" key, the screen shows the next period of time, according to the above 2-2,2-3 process can set the next paragraph of the time (short press ON can return to the upper timing time setting). Press and hold the Timer key to save or stop the panel operation after 30 seconds.

Q:How does the computer view the last time on the switch machine? Please talk about the steps.

"C: WINDOWS schedlgu.txt" in "Run" in the "Start" menu. In the open schedlgu.txt file, "Task Scheduler Service" has been started and the "Task Scheduler Service" has been exited In the time, respectively, corresponding to the boot and shutdown time, is not it convenient? Every day for the record is not difficult. D: If you want every time the switch machine can be clearly recorded, it can be "script + batch" approach. But you have to hands-on, we use the "script + batch" approach to achieve. Simply add two batch-time batch commands on the power-on, shutdown script, and let them start or close the recording time with the system into the C: aaa.txt file. First create two new text documents, respectively, used to record the boot and shutdown information, enter the following command, and then save as ". Bat" file on it. Where the boot batch (start.bat) is as follows: @echo off >> c: aaa.txt echo *** boot record *** >> c: aaa.txt echo. >> c: aaa.txt echo% date%% time: ~ 0, -3 %% Username% >> c: aaa.txt echo. >> c: aaa.txt echo ************** >> c: aaa.txt echo. >> c : Aaa.txt echo. And shutdown batch (shutdown.bat) command as long as the start.bat in the "*** boot record ***" to "*** shutdown record ***" can, the rest unchanged. After the above two batch commands are done, enter gpedit.msc in "Run" in the "Start" menu, open Group Policy, and then click "Computer Configuration → Windows Settings → Script (Startup and Shutdown)", double click "Start", in the Properties dialog box, click "Add" button, and in the "Script Name" column fill in the "start.bat" absolute path, click "OK" button. Similarly set the shutdown script. This can be a switch machine to do an experiment, open the C: aaa.txt file, is not recorded you just shut down and boot tim

Q:There is no monitoring software, you can monitor the computer's switching time and operating records

Now most of the domestic companies are using the company [network dog] monitoring software, it can easily achieve QQ, MSN chat content monitoring, Internet monitoring, send and receive e-mail content monitoring, screen monitoring, desktop monitoring, but also filter URL blacklist, prohibit the game entertainment software to run, manage the use of mobile hard disk U disk drive, break through a variety of arp firewall control network any one of the machine speed and traffic. The The Monitoring is so simple that the management network is so easy. Can be said that the current domestic most professional, the most simple operation of the network management software! The If you want to know more, you can go to Baidu search under the network, is a red software, hoping to help you! Please adopt! Thank you ? The answer was adopted by users

Q:Who knows the hotel background music switch time a little bit Thank you 5 Who knows the hotel background music switch time a little bit of shock It seems to be 8 o'clock 8 o'clock the hotel is generally this time

Hotel time in the summer: 11 am - 2 pm 4 pm - 21 pm Hotel Rooms: 8am - 10pm

Q:Do not know what is wrong by the shortcut keys, can not switch the layer sound and display button. Ask the old driver to tell.

Strongly recommended in English. In the timeline panel, select that layer (pictures, videos, text can be);