Supplementary information
18.7 Communication services
CPU 410 Process Automation/CPU 410 SMART
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System Manual, 05/2017, A5E31622160-AC
Integration into STEP 7
S7 communication offers communication functions through configured S7 connections. You
use STEP 7 to configure the connections.
S7 connections with an S7-400 are established when the connection data is downloaded.
18.7.5
S7 routing
Properties
You can access your S7 stations beyond subnet boundaries using the programming device /
PC. You can use them for the following actions:
●
Downloading user programs
●
Downloading a hardware configurations
●
Performing test and diagnostic functions
Requirements
●
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 connected to the network gateway must receive routing information
which defines the paths to other subnets.
●
In your network configuration, the PG/PC you want to use to set up a connection via
gateway must be assigned to the network to which it is physically connected.
●
The CPU must be configured as the master.