120
Routing Tables
Section 7-2
Note
1. The unit number is set between 00 and 15 using the rotary switch on the
front panel of CV-series, CS-series, and CJ-series Controller Link Units,
and is the same as the operating level for C200HX/HG/HE PCs. For the
Support Board, the unit number is 16 less that the unit address (i.e., the
Communications Unit number) set for the Board in the FinsGateway set-
tings.
2. The network address is the address of the network connected to the Unit
(between 1 and 127). The address is set when the local network table is
created.
Relay Network Table
A relay network table provides the node and network addresses correspond-
ing to the initial relay point (first point the data must go to) en route to a target
network (end network) not directly connected to the local PC. The table traces
the route from the relay point to the end network.
Note
(1) The above example shows the routing tables required to send a message
from the personal computer to PC4. To send from PC4 to the personal
computer, similar routing table entries would be required.
(2) Refer to
for a routing table setting example.
Local network address Unit number
Unit number 04
Unit number 05
Unit number 06
N
etwork address 1
N
etwork address 2
N
etwork address 3
N
etwork address 4
Example
Local network table
Local network
address
Unit number
2 05
3 06
4 07
1 04
Unit number 07
Local net
work ad
dress
Unit
number
End
network
Relay
node
Computer1 relay network table
Relay
network
N
etwork address 1
Local node
Computer 1
N
ode
address
1
N
ode ad-
dress 3
N
ode ad-
dress 1
Relay node
PC2
Relay node
PC3
N
ode address 2
Unit number 0
N
ode ad-
dress 1
Unit num-
ber 1
N
ode address 2
Destination node
PC4
N
etwork
address 2
N
etwork
address 3
End
network
2
3
Relay
network
1
1
Relay
node
3
3
3
PC2 (a) relay network table
2
2
2
PC3 (b) local network table
0
End network
3
1
Data first goes to node
address 3 at network
address 1 to reach
network address 3.
Data then goes to node
address 2 at network ad-
dress 2 to reach network
address 3.
We know from the
local network table
that the data goes
through local unit
number 1 to reach
network address 3.
Data goes to node
address 2 at net
work address 3,
i.e., the local net
work.
N
ode address 2
Summary of Contents for SYSMAC 3G8F7-CLK12-EV1
Page 2: ......
Page 4: ...iv ...
Page 20: ...xx Conformance to EC Directives 6 ...
Page 48: ...28 Applications Precautions Section 1 4 Example CX Programmer Response Timeout Setting ...
Page 68: ...48 Backup Power Supply Wiring Optical Ring Systems Only Section 2 4 ...
Page 74: ...54 Using the C Library Section 3 2 ...
Page 110: ...90 Changing the Data Link Tables with Active Data Links Section 5 5 ...
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