Hello. 1
In this video we are going to learn trd, reading time command when X0 is executed or goes from 2
off to on Trd commands executes or starts. 3
And then what happens special data registers D one thousand three hundred and nineteen and 18 seventeen 4
sixteen fifteen forteen and one thousand two hundred and thirteen nineteen. 5
Included year 18 includes day 1317 month and 1313 is second. 6
These are these data registers special ones are includes these items and as content you can see it in 7
here year or day or month it's already assigned and fixed values and you cannot change the special data 8
registers aand when you executed TRD command it is writing these data registers special one data registers 9
values to what you put here for example in example it's D0 is selected it's starting from D0 to 10
D6 it is writing these values to here and after this command is executed D1319 will 11
be writtem to D0 for example D1350 will be D4 and real time clock of plc can be read 12
with trd command. 13
Like I said support for the real time clock varies by plc models and in systems communicating with 14
the delta HMI and HMI clock can be synchronized to the plc clock but what you 15
know or what we need to know for this command these commands already assigned and selected a 16
as special data registers and we can pull these data registers to our or another one data register inside 17
of the plc program just what we need to know just execute this command and get you and day and month 18
and day hour minute and second completely that's all so are finished for this video. 19
See you in the next video.