WEB Server - Echo an Array of values and read it like a webservice.

Rimon

Good morinig to All,

I'm working with S7-1200 Web Server. I created a DB containg some values and an FC that combine valus into a Array [0..1000] of Char called EXCHANGE_STRING. Then I want to show this string in a web page:

<h1>DATA:</h1>

:="MYDB".EXCHANGE_STRING:

But obviusly this doesent work because is not a single variable but is an array of variables.

So, i can't use something like Ajax because i want to read data from PLC like a webservice, using file_get_content() method in my PHP application ad import data into the Database. In other words, the user of this application isn't a web browser but a script.

Is there a way to do this?

Thank you for your help!

Rimon

Thank you for your answer.

Performance loss is not a problem because this is the only work that this PLC have to do. In my system i have an Automation PLC (S7-317F) and the "Data Exchange PLC" (S7-1200) that exchange a DB via Profinet.

So, I have something like 500 / 700 plc sensor values and variables in my Automation PLC, and in the S7-1200 PLC i want to read these values and generate some "special" error messages and send some of these data to a PC, to store as historical data, "splitting" the work between 2 PLCs.

Then I Tried to use the S7-1200 FTP component (provided by Siemens) but doesent work properly because i need a "real time" communication.

Then i think that i can create someting like a Web Service in my S7-1200 and read strings in my PC with PHP scripting (all the PC platform is also made in PHP and MySQL database).

But I'm pretty new to the PLC world and i'm looking for the right way to do this.

Thank you!