Access To The Automation Component Fails - Siemens SIMATIC TS Adapter IE Manual

Error diagnostics
8.4 Malfunctions in remote maintenance
8.4.4

Access to the automation component fails

Diagnostics
The connection establishment was successful, but access to the remote automation
component fails.
Remedy
1. Check the BUSF LED on the TS Adapter IE. If it is lit, there is no connection to another
2. Check the IP address of the TS Adapter IE and the IP address that was assigned to the
3. Check the firewall setting:
72
device over Ethernet. You can also view the status of the Ethernet connection in the
"Information > Status" tab of the configuration interface.
calling PC during remote connection. The addresses must be in the same subnet as the
addresses of the remote automation component, and must not be used either by another
component in the network or by your PG/PC.
– First disable the firewall in the "Security > Incoming Calls > General" tab for test
purposes.
NOTICE
When the firewall is disabled, your automation system is vulnerable to attack over the
remote connection!
Test the access to the automation component.
– Then enable the firewall in the "Security > Incoming Calls > General" tab.
In the same tab, allow SIMATIC Protocols as exceptions.
In the "Security > Incoming Calls > SIMATIC Protocols" tab, allow S7 communication.
Test the access to the automation component again.
TS Adapter IE
Manual, 11/2010, A5E00977705-03