Diagnostics and maintenance
6.4 Web server of the CPU
CP 154xSP-1
Operating Instructions, 12/2019, C79000-G8976-C426-05
93
6.4
Web server of the CPU
The Web server of the CPU
The CPU has a Web server which you can access from a PC using HTTP/HTTPS via the
CP.
The Web server of the CPU provides a wide variety of functions for diagnostics and service
purposes. You will find detailed information in the system manual /2/ (Page 114) and in the
information system of STEP 7 in the topic and under the heading "Web server".
Requirements for access to the Web server
Permitted web browsers
You will find the Web browsers supported on the PC for access to the Web server of the
CPU in the STEP 7 information system under the heading "Web server".
Requirements in the CPU configuration
1.
Open the corresponding project on the engineering station.
2.
Select the CPU of the station involved in STEP 7.
3.
Select the "Web server" entry.
4.
In the parameter group "General", select the "Enable Web server for this interface"
option.
5.
In the user management create a user with suitable rights on the CPU.
To load firmware you need to assign this user the right to perform firmware updates in the
access level.
The user name and password are required later for access.
6.
Configuration of the option "Allow access only using HTTPS" in the parameter group
"General"
Depending on whether you want to access the Web server using HTTP or HTTPS, the
configuration of the parameter differs:
–
"Allow access only using HTTPS" enabled
Connection establishment is possible only using HTTPS.
–
"Allow access only using HTTPS" disabled
Connection establishment is possible using HTTP and HTTPS.
Additional requirements in the configuration of the CP 1543SP-1
Activate the firewall in the "Security" parameter group.
