Adding Nodes Using a Repeater Unit

Section 10-1

Before connecting the new nodes to the existing network, always set the poll- ing/polled node setting to Polled. If the nodes are connected to the existing network with this setting set to Polling, the corresponding node may become the polling node for the network, which will affect the network in the following ways. After the new nodes are participating in the network normally, return the polling/polled node setting to polling node.

When the data link startup switch (software switch in the DM Area param- eters) of the new node is OFF, all the data links for the whole network including the existing network will be inactive.

When the network parameters being used are different from the default values, the network parameters will return to the default values.

Always set the Wired Network 62 Node Enable Bit in the DM Area parameters of the new node to match the settings of the existing network. If different set- tings are used, the network may not be configured correctly.

When a new node is to be added to a system that is already wired over a long distance using T-branch lines or Repeater Units, turn OFF the power to the PLCs in the segment where the node is to be added. The power to the PLCs

in segments separated by Repeater Units does not need to be turned OFF. The procedure for adding nodes is the same as 10-1-2 Procedure for Adding

Nodes.

Systems with an Existing T-branch Line

CS1W-RPT01 Repeater Unit

The power to the PLCs of the segment shown within the dot-dash broken line does not need to be turned OFF.

The power to the PLCs in the segment shown within the dash broken line must be turned OFF.

New node to be added

Systems Wired with an Existing Repeater Unit

New node to be added

The power to the PLCs of the segment shown in the dot-dash broken line does not need to be turned OFF.

The power to the PLCs in the segment shown in the dash broken line must be turned OFF.

CS1W-RPT01 Repeater Unit

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Omron CQM1H-CLK21, CVM1-CLK21 Systems with an Existing T-branch Line, Systems Wired with an Existing Repeater Unit