CS1W-CRM21 Omron, CS1W-CRM21 Datasheet - Page 159

• Manufacturer Part Number: CS1W-CRM21
• Description: CS1 CompoNet Master
• Manufacturer: Omron

Specifications of CS1W-CRM21

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Relay Network Table
Note
1.
2.
The relay network table indicates the network address and node address of the first
relay node to reach each destination network (final network). When data is being
transmitted across network levels, the data is transmitted to the final network by being
passed through the relay nodes set in the relay network tables.
With the standard table format, up to 20 networks (lines) can be registered in the relay
network table. With the extended table format (see note), up to 64 networks (lines)
can be registered in the relay network table.
Note: The extended table format is supported only for CS/CJ-series CPU Units with unit version
Items in the Relay Network Table
The relay network table is made up of the following items.
1) Destination network address
2) Relay network address
3) Relay node address
Example: In this case, the tables have been set to route communications from network address 1 (local
Specifies the address (1 to 127) of the final destination network, which is in
another network level.
Specifies the address (1 to 127) of the network containing the first relay node in
the path to the destination network.
Specifies the node address of the first relay node in the path to the destination
network.
If there is no local network table and the network is accessed from a
Programming Device or ladder program instruction with the network address = 0,
the CPU Unit will automatically access the network of the Communications Unit
with the lowest unit number in the FINS system.
With CX-Integrator version 2.1 or higher, the destination network can be
switched when transferring routing tables. (The FINS system is used in the
example described above.)
For details, refer to 3-2-10 Transferring Routing Tables to a Network PLC
through a Direct Serial Connection.
Local node
(source)
PLC1
4.0 or later.
Local node PLC1
node: PLC1) to network address 3 (destination node: PLC4).
2) Relay network address
Network address 1
Relay network tables have been set in the PLCs that are relay nodes in the
communications path (PLCs with multiple Communications Units).
address 1
Network
3) Relay node address
Node address 1
address 2
Network
1) Destination network address
address 3
Network
Destination node
3-1-1 Definition of Routing Tables
3-1 Routing Table Overview
Network address 2
Destination node
PLC4
3-3