Omron CVM1 Series, Operation Manual

Page: 20 / 110

5
System Configuration Section 1-2
• The following example shows the structure of a single-level system set to
transfer 256 LR bits/PLC in 4 PLCs.
Multi-level Systems
(4 Levels Max.)
Like the 3G2A5-LK009 and C200H-LK401 PC Link Units, two CVM1-LK401
PC Link Units can be mounted in a single PLC to create a multi-level system.
An operating level in a multi-level system can support one-half as many Link
Relay bits (32 words total) as the operating level in a single-level system. For
details, refer to
3-4-1 LR Area .
Up to 4 operating levels can be configured in a PC Link System.
Multi-level System with
Two Polling Nodes
Multi-level System with
Three Polling Nodes
PC Link
Node 0
Link Adapter
Link Adapter
Data transferred
from local node
Polling
node
Polled
node
Polled
node Polled
node
CIO 1000
to CIO 1015
CVM1
CS1
C1000H
C200H
PC Link
Node 1 PC Link
Node 2 PC Link
Node 3
PC Link
Node 0
PC Link
Node 1
PC Link
Node 2
PC Link
Node 3
Data transferred
from local node
Data transferred
from other nodes
Data transferred
from other nodes
CIO 1016
to CIO 1031
CIO 1032
to CIO 1047
CIO 1048
to CIO 1063
CIO 1000
to CIO 1015
CIO 1016
to CIO 1031
CIO 1032
to CIO 1047
CIO 1048
to CIO 1063
LR 00
to LR 15
LR 16
to LR 31
LR 32
to LR 47
LR 48
to LR 63
LR 00
to LR 15
LR 16
to LR 31
LR 32
to LR 47
LR 48
to LR 63
C1000H/C2000H PLC
with a C500-LK009-V1
(Multi-level mode)
Polled node
(Node 2)
Link #0
3G2A9-AL001
Link Adapter
C500 PLC with a
C500-LK009-V1
(Multi-level mode)
CVM1/CV-series PLC
with a CVM1-LK401
(Multi-level mode) C1000H/C2000H PLC
with a C500-LK009-V1
(Multi-level mode)
CS1 or C200H @ PLC
with a C200H-LK401
(Multi-level mode)
Polled node
(Node 1)
Link #0
Polling
node
(Node 0)
Link #0
Polling node
(Node 0)
Link #1 Polled node
(Node 1)
Link #1
3G2A9-AL001
Link Adapter
Polled node
(Node 2)
Link #1
C500 PLC with a
C500-LK009-V1
(Multi-level mode) CVM1/CV-series PLC
with 2 CVM1-LK401
(Multi-level mode) C1000H/C2000H PLC
with 2 C500-LK009-V1
(Multi-level mode)
CS1 or C200H @ PLC
with a C200H-LK401
(Multi-level mode)
Polled node
Link #0
Polling node
Link #0
Polling
node
Link #1
Polling node
Link #0
Polled node
Link #0
Polled node
Link #1