Omron CVM1 Series, Operation Manual

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Replacement Checklists Section 3-6
Note (1) There will be data errors in the LR Area if the same node address is set
on two PC Link Units in the same level. This condition is not detected as
a Unit error, so be sure to check the node address settings.
(2) There will be data errors in the LR Area if two PC Link Units with the same
level settings (both single-level, both multi-level link #0, or both multi-level
link #0) are mounted in the same PLC. This condition is not detected as
a Unit error, so be sure to check the level/link number settings.
(3) The Level/Link settings determine how many of PC Link Units can be
mounted in a PLC. One Unit can be mounted with single-level operation
and two Units can be mounted with multi-level operation (one set to Link
#0 and the other set to Link #1).
The following table shows the PC Link Unit models that may be included in
each pattern.
3G2A5-LK003-E and 3G2A5-LK009 PC Link Units can not be included in the
PC Link system to which the CVM1-LK401 will be connected. The CVM1-
LK401 can be connected only to PC Links containing CVM1-LK401, C200H-
LK401, and C500-LK009-V1 PC Link Units.
The pattern B and pattern C systems may contain 3G2A5-LK003-E and
3G2A5-LK009 PC Link Units. In these cases, the 3G2A5-LK003-E and
3G2A5-LK009 Units must be replaced with C500-LK009-V1 Units in order to
add a CVM1-LK401.
Model Pattern A Pattern B Pattern C
3G2A5-LK003-E --- Yes ---
3G2A5-LK009 --- Yes Yes
C500-LK009-V1 Yes Yes Yes
C200H-LK401 Yes --- ---