Omron CS1W-CLK12-V1, Operation Manual

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CVM1 and CV-series Optical Ring Controller Link Units Section 4-2
When the transmission path format is changed, the change will not go into
effect until the PLC’s power is turned OFF and ON again or the Unit is
restarted.
Transmission Path
Note 1. Set the transmission path format before connecting the Controller Link
communications cable.
2. Make the same setting for all the nodes in the network. The network will
not operate normally if the settings are different.
3. Set the token-ring mode for ring connection, and the token-bus mode for
daisy-chain connection. The network will not operate normally if the actual
configuration is different from the transmission path format setting. If, for
example, the actual configuration is daisy-chain while the transmission
path format setting is for token-ring mode, it will be determined that the net-
work is broken somewhere. (Even if this occurs, data communications will
be started up.) The network will also not operate normally if the actual con-
figuration is ring connection while the transmission path format setting is
for token-bus mode.
4. In CS1D Systems where Units are used in duplex operation or are re-
placed online, set the transmission path format to token-ring mode. This
will stop the network from splitting when there is an active/standby switcho-
ver resulting from a Controller Link Unit error or a Unit is replaced online.
5. The transmission path format for an Optical Bus System (CLK11) is always
token-bus mode. When used in combination with Optical Bus Controller
Link Units, therefore, CLK12 or CLK12-V1 Optical Ring Controller Link
Units (H-PCF cable) must also be set for token-bus mode. (The CLK52 or
CLK52-V1 Optical Ring Controller Link Units (GI cable) cannot be com-
bined with CLK11 Optical Bus or CLK12/12-V1 Optical Ring Controller
Link Units (H-PCF cable).)
4-2 CVM1 and CV-series Optical Ring Controller Link Units
Before starting communications, the following settings are required for an
Optical Ring Controller Link Unit (H-PCF cable or GI cable) used with a CVM1
or CV-series PLC.
Bit Setting contents
9 8
0 0 Token-ring mode
0 1
1 0
1 1 Token-bus mode
Software switch (D 100 x unit number)
0: Always set to 0.
-: Other settings.
Transmission path setting
Item Switch Page
Unit number Unit number switch 71
Node address Node address switch 72
Transmission path format Software switch 72