C500LK009V1 Omron, C500LK009V1 Datasheet - Page 62

• Manufacturer Part Number: C500LK009V1
• Description: PC LINK UNIT
• Manufacturer: Omron

Specifications of C500LK009V1

• Leaded Process Compatible: No
• Peak Reflow Compatible (260 C): No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Manual Generation of Data Link Tables
5-4
Common Link Parameters
48
Manual Generation of Data Link Tables
The example below shows a configuration consisting of four nodes that have
been set to link 8 words per node in the LR area only. Of the eight possible nodes,
only nodes #2, #4, #5, and #6 are actually in the System. Words normally allo-
cated to nodes #1, #7, and #8 can therefore be used as work words, but words
normally allocated to node #3 cannot, because they are refreshed by the Sys-
tem.
Refreshing for the above System will be as shown below:
The CVSS is required to specify data link tables manually. Generating data link
tables manually allows considerable flexibility in data links. Each PC can be set
up independently to link to the desired PCs only.
To designate manual generation of data link tables, AR 0700 and AR 0701, or
AR 0704 and AR 0705 (depending on the operating level) must be all turned
OFF in the start-up node. The structure and operation of data link tables are
described in this manual. Refer to the CVSS Operation Manuals for specific pro-
cedures and displays used in setting the tables.
Data link tables contain two types of information: common link parameters,
which are the same in all nodes and control the overall structure of the data links,
and refresh parameters, which are set independently for each node to deter-
mine which links are to be established for that node.
Common link parameters determine the communications cycle time of the data
link, which areas will be enabled for data links, and how many LR and DM words
will be transmitted from each PC. The same common link parameters must be
set in all nodes that are to be part of a data link in a Network. The displays used to
input the common link parameters are shown following the table.
Node #1
Node #2
Node #3
Node #4
Node #5
Node #6
Node #7
Node #8
Node 2
LR 00 to LR 07
LR 08 to LR 15
LR 16 to LR 23
LR 24 to LR 31
LR 32 to LR 39
LR 40 to LR 47
LR 48 to LR 55
LR 56 to LR 63
Node 4
System Configuration
Node 5
Not refreshed.
Refreshed.
Not refreshed.
Node 6
Section 5-4