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Hi Peter,
you can use the MP block for such a purpose. Set the MP:pwidth parameter to e.g. 5 seconds and set the MP:RPTF parameter to ON.

From your ESP32, you'll periodically write ON to MP:BSTATE parameter (e.g. once per second) via REST API of REXYGEN. As long as the ESP32 keeps communicating, the output MP:Y will be ON. If there is no communication from ESP32 for more than 5 seconds, the MP:Y output will turn OFF.

In other words, the MP block acts as a communication watchdog in this case.

Hope it helps, let me know.

Kind regards,
Jaroslav

Hi Kris,
thanks for the Twincat file. My colleagues are neck-deep in other ongoing projects at the moment so the preparation of REXYGEN project will take some time. Hopefully in the next week. I'll get back to you.

Kind regards,
Jaroslav

@rexpeter You are welcome Glad I could help.

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

Hi Michel,

in order to make multiple HMI pages just create more *.hmi.svg files in the same folder as index.hmi.svg. No more settings is required.

You can navigate between pages using Inkspace "Link" feature. Right-click on any object (e.g. rectangle) -> Create link, right-click again -> Link Properties -> fill in the Href field with:

/hmi/*filename*.html

This object then becomes a hyperlink to another webpage.

There is also example on Multipage HMI available - have a look at "0301-07_Multi-page_HMI" example.

Hope it helps. If you encounter any difficulties, let me know.
Cheers, Tomas

Hi Mike,
this is just to let you know that new firmware for Monarco HAT (v2.008) is available, which implements a watchdog to power cycle the Raspberry Pi. See https://github.com/monarco/monarco-hat-firmware-bin for details.

Cheers,
Jaroslav

Hi,
the video link should work now, thanks for reporting it.

As for the BK9000, "Beckhoff real-time Ethernet" is not EtherCAT, therefore it is not EtherCAT compatible. You need the mentioned BK1120 for that so you are on the right track.

Once it arrives, import the whole setup into TwinCAT and upload the project here.

In the meantime, you can make the I/Os work in REXYGEN via BK9000 and Modbus TCP.

Best regards,
Jaroslav

Hi,
I am not able to reproduce the problem. With the latest installation scripts, everything gets installed correctly.

Any updates on your side?

Best regards,
Jaroslav

Hi Phil,

for measuring time of pressed pushbutton I would go for integrator (INTE function block) with ti=1.

What is reason for measuring pushbutton pressed time? I'm asking because my proposed solution doesn't have to be the best for your end goal. Let us know.

Cheers, Tomas

Hi,
the XML does not contain any information about the individual I/O modules. Can you please try again and export a complete description?

As for the BK9000 coupler, AFAIK it does not support EtherCAT. Can you provide a link to the documentation which you mentioned?

Best regards,
Jaroslav