Siemens SIMATIC PC Adapter TS Adapter Dokumentacja Pobierz pdf (Strona 75)

Error diagnostics

8.4 Malfunctions in remote maintenance

TS Adapter IE

Manual, 06/2008, A5E00977705-02

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

device over Ethernet. You can also view the status of the Ethernet connection in the

"Information > Status" tab of the configuration interface.

2. Check the IP addresses of the TS Adapter IE and the internal or external modem. 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.

3. Check the firewall setting:

– 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.

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Siemens SIMATIC PC Adapter TS Adapter Dokumentacja Strona 75