Omron CVM1-CLK21, Operation Manual

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What Are Data Links? Section 5-1
Application Example of
Using Offsets In the following example, the send data from node 1 is split into three parts
and each part is received by a different node, i.e., each of the other nodes
receives only part of the send data from node 1. This enables effective use of
data link memory areas without wasting space. In this way, a type of message
service (i.e., specific data to a specific node) can be achieved through data
links.
5-1-1 Data Link Specifications
# 1 # 2 # 3 # 4
Send data of node 1
Item Description
No. of data link nodes 32 max., 2 min.
Number of data link
words Number of send/receive words per node (total of area 1 and
area 2):
CS/CJ Series: 12,000 words max.
C200HX/HG/HE, CVM1, CV, CQM1H:
Up to 8,000
IBM PC/AT or compatible: Manual setting: Up to 32,000
Automatic setting: Up to 8,000
Number of send words per node
(total of area 1 and area 2): Up to 1,000
Allocation of data link
areas Manual
setting Area 1, 2: Bit area (IR, CIO, and LR Areas)
Data Memory (DM and EM Areas)
However, area 1 and area 2 cannot be set in
the same memory area.
Automatic
setting Area 1: IR, CIO, or LR Area
Area 2: Data Memory (DM and EM Areas)