2-1 Basic Procedures
Uploading
Network Configurations from Target PLCs other than the Relay
PLC
The network configuration of another PLC can be read via the PLC that was first
connected to the computer (known as the relay PLC). To read another PLC’s network
configuration, switch the target PLC from the relay PLC to the desired PLC connected.
At this point, it is possible to upload the configuration of the network (including
component parameters) of the network connected to that target PLC.
Note: When accessing a target PLC other than the relay PLC, observe the following two pre-
cautions, set routing tables, and transfer them to the PLCs.
• Always create local network tables and transfer them to the relay PLC and target PLC.
• When specifying a target PLC in another network, register both local network tables and
relay network tables in all of the PLCs on the path between the relay PLC and target PLC.
Overall Procedure
Connect online to the relay PLC.
Start the CX-Integrator.
Create the local network table.
Create the local network tables
and relay network tables.
Transfer the routing tables to all PLCs
between the relay PLC and target PLC.
Required when the target PLC
is on a remote network.
Example: Select Component
−
Auto
Online from the menu bar to automatically
connect online using a serial connection.
Right-click the desired network in the Online
Connection Information Window and select
Connect
from the pop-up menu.
Right-click the target PLC in the
Network Structure Window and select
Connect to this PLC.
Connect to a Communications
Unit/port to enable accessing it.
Transfer the local network table to the relay
PLC via the serial connection.
Upload the network structure.
Switch the target PLC.
Connect to a Communications
Unit/port to enable accessing it.
Upload the network structure.
Required when there is
more than one Network
Communications Unit in
the relay PLC.
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