Siemens SIMATIC C7-613, Manual

Page: 61 / 200

Integration into the User Program
4-5
C7-613 Control System
A5E00138934-03
• For messages per language:
– For a maximum of 64 messages: 1 DB with 9584 bytes
– For more than 64 messages: 2 DBs with 9584 bytes each
• For info texts per language:
– 1 DB with 14448 bytes
• 1392 bytes for the “MENU”DB
• 6264 bytes for the “EVENT_BUFFER” DB
Power-Up Time
After startup of the C7-613, the content of the configuration DBs is loaded from
the MMC to the memory of the integrated HMI module. The time needed for this
depends on the size of the configuration and the call interval of the “HMI API” FB.
At a call interval of 100 ms and a configuration with the maximum setup (128
screens, 128 messages and 128 texts) a power-up time of approx. 230 seconds
results (at a call interval of 20 ms the time is reduced to approx. 110 seconds).
This loading process is performed automatically after every POWER ON and
general reset, and when the language is changed.
Take the following information on reducing the power-up time into consideration:
• Call the “HMI API” FB more often during the configuration time. The optimal call
interval depends on the structure of your program and should lie at about
20 ms.
•
As the number of configured screens, messages and info texts increases, the
configuration time increases overproportionally.
• Limit the number of objects (screens, messages, info texts) to the minimum
number possible.
Once objects have been created with the configuration interface and stored in
the DBs, they can no longer be removed and require space in the DBs.
•
Similar screens can be created with the same screen by using variable
components. (Four ASCII characters can be represented by using a
double-word variable. Fixed numbers such as for example telephone numbers
can be displayed as variables.)
Reloading Data Blocks with Configuration Data
Note
If you reload the data blocks with configuration data, you must always then
perform the system function using the keyboard “reload application”. This causes
the DBs with configuration data to be loaded from the MMC to the memory of the
integrated HMI module of the C7-613. Only then will the new configuration data
become effective.