Settings In The "Compile/Save" Tab Page - Siemens SIMATIC S7-GRAPH Manual

8.4.2

Settings in the "Compile/Save" Tab Page

All the settings that you make in this tab page selected with the menu command
Options > Block Settings apply to the currently open block.
FB Parameters
This setting decides the available parameters and the intended functionality of the
FB that will be created.
• Minimum: The FB contains only the start parameter INIT_SQ which can be
supplied with a value. Only the automatic mode is possible.
• Standard: The FB contains the standard parameters that can be supplied with
values. All modes are possible.
• Maximum: The FB contains all the parameters that can be supplied with values.
All modes are possible.
• Definable: With this option, you can define your own parameter set. You then
work in the variable declaration window .
Note
If you edit a user-defined parameter set and then select a standard parameter set
later in this tab, you will lose the self-defined parameters.
Executability (Block Models for FBs)
S7-Graph has two options available for creating FBs.
• Full code:
The entire code required to execute each S7-Graph FB is included in the FB. If
you have several S7-Graph FBs, this means a considerable increase in memory
requirements.
• Standard FC required:
Version 4.x and higher of S7-Graph provides you with the following alternative:
S7-Graph uses a standard FC (FC72) containing the main code sections for all
FBs. This FC is copied to your project automatically when you select this option.
The FBs produced using this method are considerably smaller.
To optimize your memory requirements, it is advisable to use the second method
with the standard FC if you have two or more S7-Graph FBs.
Note
FC72 requires more than 8 Kbytes. If your CPU can only process blocks with a
maximum of 8 Kbytes, you cannot use FC72. In this case, you must do without
user-defined parameters and then use FC70/71 or activate the "Full code" option.
S7-GRAPH for S7-300/400 Programming Sequential Control Systems
C79000-G7076-C526-01
Saving and Compiling
8-5