Charts with a s7-1200 Web Server

Hi,

I'm running the Web-Server on a S7-1212 to show the outside temperature on a Web page.

Everthing works fine so far.

Now I want to add a chart with the temperature values of the last week or month.

Any idias how to proceed?

Is it possible to store the data in an external Database (SQL Server)?

Regards

Thomas

Hi,

I have a user defined web site running on the S7-1200 which shows different temperatures.

This web site is very simple.

On a separate linux server (ubuntu 11 server), a cron job is loading my user defined web site and stores it every 5 Minutes to a file using the command wget.

A shell script extracts only the values using the commands grep and sed.

This is done with all the different values. It is possible to collect more than one value as well.

The shell script is called from cacti every 5 minutes.

Example:

The web site shows -> Air Temperature: 24.65 °C

The shell script will deliver only the value 24.65

Cacti is a GUI for the RRDTool, which is designed to collect data from network devices using SNMP. Nevertheless there is a possibility to call a script to provide the value without using SNMP.

I used this guide to install ubuntu:

http://www.ubuntugeek.com/step-by-step-ubuntu-9-10-karmic-lamp-server-setup.html

Then I used this guide to install cacti:

http://www.ubuntugeek.com/install-and-configure-cacti-monitoring-tool-in-ubuntu-9-10-karmic-server.html

It took some time to understand cacti. You have to follow the manual exactly.

Hi!

The link mentioned before does not longer works:

Sample program: S7-1200 and DATA LOG

https://www.automation.siemens.com/BR/tf/WW/en/Posts/57715#top

So it is not possible to create a graph in the web server? Even with the .csv file? Is it only possible in an external excel?

Thanks!

This Siemens sample uses a graph on user defined webpage:

https://support.industry.siemens.com/cs/ww/en/view/109739414