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Configuration
4.9 Cloud configuration
– If the option is disabled, the testament is not stored permanently in the broker.
● QoS - Last will
From the drop-down list, select the Quality of Service with which the Last will topic is
transferred.
– QoS 0 / QoS 1 / QoS 2
For significance of the three options see section Configuring topics (Page 84)
4.9.2.3
Certificates
Requirement
The parameter group is only displayed when the option "TLS" is enabled for transmission via
MQTT, see section MQTT configuration (Page 80).
The requirement for importing certificates and keys is that the corresponding files are saved
on your PC.
● The following types of certificate files are supported: *.pem, *.crt, *.cer, *.crl
● The following types of key files are supported: *.pem
MQTT server certificate manager
You use this parameter group to import the server certificate of the broker. The server
certificate is provided by your service provider.
Multiple server certificates can be imported for each cloud profile.
● Import server certificate
The output field shows the name and path of the last imported certificate.
● Browse
Click this button to download a certificate.
The browser for browsing your PC file system opens.
Select the required certificate and click "Open".
The name and path of the selected certificate are displayed in the output field.
After saving, the certificate details are displayed in a table.
82
connection to the broker is reestablished, the subscriber first receives the "testament"
with the "Retain" flag.
For more information on the flag "Retain", refer to section Configuring topics
(Page 84).
Operating Instructions, 10/2019, C79000-G8976-C503-02
SIMATIC CC7
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