s7-1200 1212c PLC Connection to a website

Interesting question. I don't know the answer  but I'll read up on this. I've used an s7-1200 for simple relay control. But didn't ever think to connect it to a website. 

The idea is a web based SCADA

Hey Pircks 

As far as I am able to see the details I can see that there is #modbus #modbus /tcp communication available for the communication which means you can have data on the website or even you can control the PLC from there.

Also if you find any difficulty please post it here I may help you with that since I worked with the Modbus over serial and Modbus over RS485.

https://www.youtube.com/watch?v=OAim_iB1Bn8&t=5s&pp=ygUYZW5lcmd5IG1vbml0b3Jpbmcgc3lzdGVt (Please excuse since the audio and subtitle is not available in English) but yes I have developed industrial-grade gateway which is capable to have a connection via RS485 and WiFi. 

Also if you need any help just ping me I can surely help you with this. Waiting to see your progress and results.

I am not sure is possible to do a direct connection with the server from PLC or not.

I think you'll find that MQTT is the most effective option for you to send and receive On and Off status messages. TCP/IP relies on client-server architecture design, which means that when any web client, whether it's your website or the PLC, is wanting to receive a timely (or near real-time) status update, it will have to frequently poll the webserver to get this information. This is certainly not very efficient. This is what publish-subscribe services, like MQTT, are designed for. Of course, there have been many in the past who have created a webserver on a PLC, only to find that they've unwittingly opened up that PLC to the world to play with.

I read some information on the Siemens web site.  Those little PLCs have a lot more capabilities than I expected.   I've attached the datasheet.

PDF

The s7-1212c (and all the various s7-1200 models) have a buitl in web server.  I have not used it, but there are some application notes that should help you.  Here is a link to a page, I think it is what you are looking for.  Siemens does use their TIA Portal software to do all the configuration.

https://support.industry.siemens.com/cs/document/68011496/creating-and-using-user-defined-web-pages-on-s7-1200-s7-1500?dti=0&lc=en-WW

 Pircks , can you tell what’s making up “my website/a website”, where you expect the data to be passed onto? Where is it hosted, what authentication it uses, what content update mechanisms it has, are there frameworks to run applications? If you don’t have one, I suggest AWS….