User Data Format - Siemens SIMATIC CC712 Operating Instructions Manual

Data buffering
In case of a connection abort between gateway and cloud server, the gateway saves the last
16 data frames of topics with "QoS" = 1 or 2 in its frame memory.
The frame memory has a capacity of 16. It operates chronologically; in other words, the
oldest data is sent first (FIFO principle). As of the 17th data frame, the oldest data frame in
the frame memory is overwritten.
Recurring cloud connection
Depending on the configured QoS value, the following behavior is in effect for a recurring
connection between gateway and cloud server.
● QoS = 0
The gateway sends the current values once with the quality "Good".
● QoS = 1 / 2
The gateway sends the saved values once with the quality "Good".
Afterwards, the current values are sent after the trigger conditions are triggered.
4.9.3.2

User data format

User data editor
Using the "User data format" button, you open the editor for defining the user data format of
the topics.
Because different cloud systems expect different user data formats, you must adapt the user
data format to the requirements of the processing systems.
The UTF-8 character coding is used for formatting the user data.
● Templates
You can select one of the existing templates using the "Templates" drop-down list of the
open user data editor.
● User data format
In the text box, you can change the user data format of a template or create a template
according to your own requirements.
● Use this user data format for all topics
When the option is enabled, the user data format displayed in the text box is applied for
all groups or topics.
After saving, the checkmark for the option is removed from the topic editor.
If changes are made later in a group or topic, the changes are only applied to the relevant
topic or group and not to all topics or groups when you press "Apply".
● Apply
Applies the current settings in the topic editor.
SIMATIC CC712
Operating Instructions, 05/2019, C79000-G8976-C503-01
Configuration
4.9 Cloud configuration
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