Diagnostics and upkeep
5.2 Online security diagnostics via port 8448
CP 1243-1
92 Operating Instructions, 12/2016, C79000-G8976-C365-02
● Time
Information on the time on the device
If you want to operate online diagnostics with the station via the CP, you need to activate the
online functions in the parameter group "Communication types" see the section
Communication types (Page 39).
You will find further information on the diagnostics functions of STEP 7 in the STEP 7
information system.
STEP 7: The partner status
The CP can signal the status of the connection to the communications partner to the CPU
via a PLC tag. You can display the status of the PLC tag via the Web server of the CPU
For information on the configuration, refer to the section Partner stations > Telecontrol server
(Page 42).
Via the CP you can access the Web server of the CPU and the information available there.
For access, refer to the section Access to the Web server (Page 90).
For information on the functions, refer to the section SNMP (Page 94).
Online security diagnostics via port 8448
Security diagnostics without opening port 102
If you want to perform security diagnostics without opening port 102, follow the steps below:
1. Select the CP in STEP 7.
2. Open the "Online & diagnostics" shortcut menu.
3. In the parameter group "Security" click the "Connect online" button.
In this way you perform the security diagnostics via port 8448.
Settings for online security diagnostics and downloading to station with the firewall activated
(Page 49)
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