Example Of A User-Defined Web Page; Web Page For Monitoring And Controlling A Wind Turbine - Siemens SIMATIC S7-1200 System Manual

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Example of a user-defined web page

As an example of a user-defined Web page, consider a Web page that is used to remotely

monitor and control a wind turbine:

In this application, each wind turbine in a wind turbine farm is equipped with an S7-1200 for

control of the turbine. Within the STEP 7 program, each wind turbine has a data block with

data specific to that wind turbine.

The user-defined Web page provides remote turbine access from a PC. A user can connect

to standard web pages of the CPU of a particular wind turbine and access the user-defined

"Remote Wind Turbine Monitor" Web page to see the data for that turbine. A user with

privileges to modify variables can also put the turbine in manual mode and control the

variables for turbine speed, yaw, and pitch from the Web page. A user with privileges to

modify variables can also set a braking value regardless of whether the turbine is under

manual or automatic control.

The STEP 7 program would check the Boolean values for overriding automatic control, and if

set, would use the user-entered values for turbine speed, yaw, and pitch. Otherwise, the

program would ignore these values.

S7-1200 Programmable controller

System Manual, V4.2, 09/2016, A5E02486680-AK

12.7 User-defined Web pages