9
Overview
Section 1-1
Change manually created data link tables during data link operation.
Overview
It is possible to modify a manually created data link table while data links are
running.
Note
This is possible only with manually created data link tables. Any attempt to
change automatically created data link tables when data links are running will
fail and an error message saying that the tables cannot be edited during data
link operation will be displayed.
Method
This function can be set using the CX-Net in CX-Programmer version 3.2 or
later.
Objectives
• In systems that operate non-stop and cannot be turned OFF, this function
makes it possible to change the data link table to accommodate the addi-
tion of new nodes and to transfer data link tables without having to stop
manually set data link communications.
• If this function is combined with the use of Repeater Units to add network
nodes, it becomes possible to construct systems of greater flexibility.
Operation
When a node is being modified online, this function temporarily stops refresh-
ing of data link data until modifications have been completed.
Nodes will participate in data links after changes to the data link table have
been completed.
Note
Refer to the
Controller Link Unit Operation Manual
(W309) for information on
changing user-set data link tables while the data links are active.
Overview of 3G8F7-CLK23-E, 3G8F7-CLK13-E, and 3G8F7-CLK53-E Features and Functions
The 3G8F7-CLK23-E, 3G8F7-CLK13-E, and 3G8F7-CLK53-E are upwardly
compatible from the 3G8F7-CLK21-EV1, 3G8F7-CLK12-EV1, and 3G8F7-
CLK52-EV1, respectively.
The following data link functions have been added to the features and func-
tions of the 3G8F7-CLK21-EV1, 3G8F7-CLK12-EV1, and 3G8F7-CLK52-
EV1.
All other functions and performance are the same as for the 3G8F7-CLK21-
EV1, 3G8F7-CLK12-EV1, and 3G8F7-CLK52-EV1.
When configuring a system using data links in which the number of send
words per node exceeds 1,000 words, all Controller Link Units and Support
Boards must be the CS1W-CLK
@
3, CJ1W-CLK
@
3, or 3G8F7-CLK
@
3-E.
When using other Controller Link Units or Support Boards together in the
same network, use a maximum of 1,000 send words per node.
Model number
3G8F7-CLK21-EV1,
3G8F7-CLK12-EV1, or
3G8F7-CLK52-EV1
3G8F7-CLK23-E,
3G8F7-CLK13-E, or
3G8F7-CLK53-E
Number of send
words per node (total
of area 1 and area 2)
1,000 words max.
4,000 words max.
Number of error log
records
39 max.
64 max.
Summary of Contents for SYSMAC 3G8F7-CLK12-EV1
Page 2: ......
Page 4: ...iv ...
Page 20: ...xx Conformance to EC Directives 6 ...
Page 48: ...28 Applications Precautions Section 1 4 Example CX Programmer Response Timeout Setting ...
Page 68: ...48 Backup Power Supply Wiring Optical Ring Systems Only Section 2 4 ...
Page 74: ...54 Using the C Library Section 3 2 ...
Page 110: ...90 Changing the Data Link Tables with Active Data Links Section 5 5 ...
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