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Hello.
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In this video we are going to learn trd, reading time command when X0 is executed or goes from
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off to on Trd commands executes or starts.
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And then what happens special data registers D one thousand three hundred and nineteen and 18 seventeen
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sixteen fifteen forteen and  one thousand two hundred and thirteen nineteen.
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Included year 18 includes day 1317 month and 1313 is second.
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These are these data registers special ones are includes these items and as content you can see it in
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here year or day or month it's already assigned and fixed values and you cannot change the special data
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registers aand when you executed TRD command it is writing these data registers special one data registers
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values to what you put here for example in example it's D0 is selected it's starting from D0 to
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D6 it is writing these values to here and after this command is executed D1319 will
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be writtem to D0 for example D1350 will be D4 and real time clock of plc can be read
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with trd command.
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Like I said support for the real time clock varies by plc  models and in systems communicating with
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the delta HMI and HMI  clock can be synchronized to the plc clock but  what you
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know or what we need to know for this command these commands already assigned and selected a 
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as special data registers and we can pull these data registers to our or another one data register inside
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of the plc program just what we need to know just execute this command and get you and day and month
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and day hour minute and second completely that's all so are finished for this video.
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See you in the next video.