System Configuration; Single-Level And Multi-Level Systems - Omron SYSMAC CVM1 Series Operation Manual

System Configuration

1-2

System Configuration

1-2-1

Single-level and Multi-level Systems

Single-level Systems
CVM1-LK401 in
CVM1/CV PLC
Polling node (node 0)
4
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.
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.
C500-LK009-V1 in
C500-LK009-V1 in
C1000H/C2000H
C1000H/C2000H
(LK009 mode)
(LK009 mode)
Polled node (node 1)
3G2A9-AL001
Link Adapter
• The following table shows the maximum number of PLCs that can be con-
nected for a given number of LR bits per PLC.
Number of LR bits per PLC
32 bits (2 words)
64 bits (4 words)
128 bits (8 words)
256 bits (16 words)
512 bits (32 words)
• 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.
C500-LK009-V1 in
C500 PLC
(LK009 mode)
Polled node (node 2)
3G2A9-AL001 3G2A9-AL001
Link Adapter Link Adapter
Max. number of PLCs in PC Link
32
16
8
4
2
Section 1-2
C200H-LK401 in
CS1/C200H@ PLC
Polled node
Polled node (node 3) (node 4)