Fb "Hmi Menu" For The Screen Hierarchy; Parameters Of The "Hmi Menu" Fb - Siemens SIMATIC C7-613 Manual

4.7

FB "HMI MENU" for the Screen Hierarchy

Function
The "HMI MENU" FB provides support for the screen hierarchy.To accomplish this,
the FB fetches information from the "MENU_DB" DB (see Section 4.3.10)
regarding which key is to display which screen or which info text, and calls the
corresponding objects. The softkeys and the cursor keys are used to change the
screens.
Inserting an FB in the project
In SIMATIC Manager, open the "C7 613" library and copy the "HMI MENU" FB to
the block container of your project.
Structure and Description
Table 4-10 Parameters of the "HMI MENU" FB
Parameter
API_DB
MENU_DB
RETVAL
Note
The screen hierarchy is identical in all 5 selected languages.
C7-613 Control System
A5E00138934-03
Declaration Data Type
INPUT BLOCK_DB DB
INPUT BLOCK_DB DB
OUTPUT INT
Integration into the User Program
Memory Description
Area
Number of the instance DB of
the "HMI API" FB. Needed for
synchronization of "HMI MENU"
FB and "HMI API" FB.
Number of the DB for the
screen hierarchy (refer to
Section 4.3.10)
M, D, L, A Return value; provides
information about possible
errors. The return values are
described in Appendix B.1
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