Communication
3.2 Communication services
CPU 31xC and CPU 31x, Technical data
Manual, Edition 08/2004, A5E00105475-05
3-13
Requirements
• The station modules are "capable of routing" (CPUs or CPs).
• The network configuration does not exceed project limits.
• The modules have loaded the configuration data containing the latest "knowledge" of the
entire network configuration of the project.
Reason: All modules participating in the network transition must receive the routing
information defining the paths to other subnets.
• In your network configuration, the PG/PC you want to use to establish a connection via
network node must be assigned to the network it is physically connected to.
• The CPU must set to master mode, or
• when set to operate in slave mode, the Test, Commissioning, Routing functionality must
be enabled by setting the check box in STEP 7, in the
DP interface for DP slave properties dialog box.
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