Would IFTTT be possible to integrate?

[SERGIO]

Yes external IP and external port. Use HTTPS and port 443 so at last it will be encrypted.

Thank you Daniel,

so the url would be i.e.: https://remote:remote@public_ip:port/scada-remote?m=json&r=grp&fn=write&alias=1/1/1&value=50

Is that correct? I intorduce my external IP and It does not work.

Besides, the problem is that the  external IP change every day...so I would like to avoid pay for a such service.

Best regards.