Technical data

Basics of Creating Logic Blocks
10.8 Updating Block Calls
Programming with STEP 7
264 Manual, 05/2010, A5E02789666-01
10.8.1 Changing Interfaces
You can also use the incremental Editor to modify the interfaces of offline blocks that have been
edited with STEP 7, version 5:
1. Make sure that all the blocks have been compiled with STEP 7, version 5. To do this, generate
a source file for all the blocks and compile it.
2. Modify the interface of the relevant block.
3. Now open all the calling blocks one after another - the corresponding calls are displayed in red.
4. Select the menu command Edit > Block Call > Update.
5. Generate the relevant instance data blocks again.
Note
Interface changes to a block opened online may cause the CPU to go into STOP mode.
Rewiring block calls
First modify the numbers of the called blocks and then execute the Rewire function to match up the calls.