Omron CVM1 Series, Operation Manual

Page: 19 / 110

4
System Configuration Section 1-2
1-2 System Configuration
The following restrictions apply to PC Link Systems with CVM1-LK401 PC
Link Units.
1. The CVM1-LK401 can communicate with C200H-LK401 Units as well as
C500-LK009-V1 Units in single-level LK009 mode or in a multi-level sys-
tem.
2. 3G2A5-LK009 and 3G2A5-LK003-E Units cannot be used. Also, C500-
LK009-V1 Units cannot be used in single-level LK003 mode.
When CVM1-LK401 PC Link Units will be used, the PC Link Units described
in restriction 2 above must be replaced or the Unit settings must be changed.
For details, refer to
SECTION 3 Replacing an Existing PC Link System .
1-2-1 Single-level and Multi-level Systems
Single-level Systems
Up to 32 PLCs can be connected in a single-level system and up to 64 words
of data can be exchanged in the entire system.
• The following table shows the maximum number of PLCs that can be con-
nected for a given number of LR bits per PLC.
• The maximum number of PLCs that can be connected in the PC Link Sys-
tem is determined by the number of LR bits set per PLC. Only the Node 0
(polling node) setting is valid. The other nodes’ (polled node) settings are
disabled.
CVM1-LK401 in
CVM1/CV PLC
Polling node (node 0)
Polled node (node 1)
Polled node (node 2)
Polled node (node 3)
Polled node
(node 4)
3G2A9-AL001
Link Adapter
C500-LK009-V1 in
C1000H/C2000H
(LK009 mode)
C500-LK009-V1 in
C500 PLC
(LK009 mode) C500-LK009-V1 in
C1000H/C2000H
(LK009 mode)
C200H-LK401 in
CS1/C200H
@
PLC
3G2A9-AL001
Link Adapter 3G2A9-AL001
Link Adapter
Number of LR bits per PLC Max. number of PLCs in PC Link
32 bits (2 words) 32
64 bits (4 words) 16
128 bits (8 words) 8
256 bits (16 words) 4
512 bits (32 words) 2