Hi Tobby,
why do you need such a function?

There is the Sleep() function in REXLANG, but it is highly recommended not to use it. You should write your REXLANG code so that it executes as fast as possible. For details see REXLANG documentation.

Best regards,
Jaroslav

Hi Jaroslav,

Awesome, thank you for your help.

Cheers

Mike

Thanks Jaroslav,

So using a not block would be the preferred way for making it work for cooling.

Cheers

Mike

Hi Sid,

thank you for your question. Custom made solution is far beyond our "free of charge" support. However here are some function blocks which might help you achieve your goal:

TIMER_ - Multipurpose timer
BINS – Controlled binary sequence generator
EDGE_ - Falling/rising edge detection in a binary signal

If there is anything unclear, let us know.

Regards, Tomas

Hi Mike,

not sure if I understand correctly what is the issue. Can you provide more information?
Can you share screenshot of the project part and a sketch of desired behaviour?
Is the issue about setting binary inputs sequentially which produces more logs to be written?

Thanks.

Cheers, Tomas

Thank you for update. If you encounter any strange behaviour again, please, let us know.
Good luck with your project!

Cheers, Tomas

Hi Phil,

let me answer your questions:

ad 1) Yes, in order to count time connect CNI=1 to "ti" input as you proposed.
ad 2) Correct, "Y" should contain time.
ad 3) Exactly.

It also assumes that your boolean signal from pushbutton is connected to input "u".

For more details about the INTE function block see docs: https://www.rexygen.com/doc/ENGLISH/MANUALS/BRef/INTE.html#x81-800005

Cheers, Tomas

@rexpeter You are welcome 😉 Glad I could help.

Cheers, Tomas

Ok, thanks Jaroslav.

I'll use a combination of the ALB and what I currently have to achieve both. This way I'll get both live HMI and logged alarms.

Cheers

Mike

Hi Mike,
I see. In that case the simplest approach is to use the TSE block (three state element), which moreorless combines two comparators with hysteresis.
0_1571645853248_rexygen_tse_cooling_heating.png

Kind regards
Jaroslav

@ryanastiefes Dear Ryan,
I have used PID Control Laboratory at www.pidlab.com.

0_1571646428904_pidlab-pi-controller.png

Hope this helps.

Best regards
Jaroslav

Hi George,

if I understand correctly you are trying to write (change) parameter inside function block (TIMER_:pt) from the running project, right?

Have a look at function block called SETP*: https://www.rexygen.com/doc/PDF/ENGLISH/BRef_ENG.pdf#page=307

This group of blocks enables you to remotely change parameters (Real, Integer, Bool) of function blocks.

If this is not answering your question, please, let me know 🙂

Regards, Tomas

Hi Kris,
you are right, it is necessary to force the valve to fully closed position once in a while. The SRTF function block is not the best one for your needs. I'd go for the ATMT state machine or simply use an ISSW switch to send logic 1 to the DN (CLOSE) input.

Jaroslav

Hi,
this is possible. Put the PROJECT block into your project main file (the one with EXEC block) and tick the SourcesOnTarget parameter.
0_1575385871267_rexygen-source-files-on-target.png

Hope this helps, let me know.

Jaroslav

Hi Emmanuel,
you are right, I can replicate the problem. I'll forward this to our developers.

Thanks for reporting the issue and the workaround!

Best regards
Jaroslav

Hello Martijn,
this will save the total number of run-minutes to database everytime the RUN input drops to OFF (FALSE):
0_1576604316928_rexygen-hour-meter-database.png

See example 0404-01 and Database connection driver manual for details.

Hope it helps.

Jaroslav