Configuring Hardware and Communication Connections STEP 7.pdf

Multi-User Editing Projects
15.2 Single Terminal Configuration on Non-Networked
Workstations
15.2.1 Merging Several S7 Programs into One
STEP 7 does not offer support with merging S7 programs on non-networked
workstations. The only way to merge S7 programs in this case is to copy individual
blocks or source files. Shared data for the project such as the symbol table or the
variable table must be edited manually after copying.
1. Copy blocks and source files to their respective folders in an S7 program.
2. Export the symbol tables of the individual S7 programs to ASCII format and
import them into the symbol table of the merged S7 program.
3. Check whether symbols have been used more than once.
Tip: You can also integrate short symbol tables using the clipboard (copy and
paste).
4. Copy the variable tables you want to use or integrate the various variable
tables using the clipboard
15.2.2 Copying S7 Programs with Message Attributes
If you have assigned message attributes to blocks, note the following restrictions
when you copy S7 programs:
Assigning Project-Oriented Messsage Numbers
Message numbers could overlap. To avoid conflicts:
• Use the menu command Edit > Special Object Properties > Message
Numbers to allocate a fixed message number range to each S7 program.
• When you copy S7 programs, make sure they do not overwrite other S7
programs.
• Note that only message types (FBs) can be programmed separately from the
S7 program.
Configuring Hardware and Communication Connections with STEP 7
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