Technical data

Establishing an Online Connection and Making CPU Settings
18.1 Establishing Online Connections
Programming with STEP 7
Manual, 05/2010, A5E02789666-01 403
18.1.3 Online Access to PLCs in a Multiproject
Cross-project access with an assigned PG/PC
The "Assign PG/PC" function for the objects "PG/PC" and "SIMATIC PC Station" are also available
for the multiproject.
You can specify the target module for online access in any project of the multiproject. This
procedure is the same as if you were working with one project only.
Requirements
• PGs/PCs or PC stations you want to use for online access to PLCs must have been assigned
in any one project of the multiproject.
Note: The assigned PG/PC or PC station is highlighted in yellow color when the corresponding
project is open.
The PG/PC assignment is only visible if the PG that opens the project is properly assigned.
• The cross-project subnets are merged.
• All projects of the multiproject have been compiled and configuration data have been
downloaded to the participating stations; for example, to provide routing information to all
participating modules for establishing connections between the PG/PC and the target module.
• The target modules can be accessed across the networks.