Can you use internal plc bits in function blocks?

[Bobodopalus]

Hi all

is it possible to use the internal date of a plc in a function block without setting it as an input for the function block?

for instance i have some logic to do something inbetween lets say 10:00 and 16:00 o'clock am i able to use those internals bits of the plc where the time is stored without inputting them to the function block and using them internally?

 

thanks

[Michael Walsh]

Yes, you can assign the AT (Address Translation, I think) field:

When creating the variable:

After creating:

Then just use Minutes_Seconds in your code.  Of course you may need to strip out minutes and seconds using the MOVD command for it to be useful.

[Bobodopalus]

ye thats all i needed to know thanks, will be a bit easier to convert some ugly code now with alot less inputs

[Bobodopalus]

just to double check this works for clock pulses too? if i put CF102 in the address for 1 second pulse that should be fine?