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Handling Precautions
Section 9-6
!Caution
When a C200HX/HG/HE or CQM1H-series Controller Link Unit has been
replaced or a CPU Unit has been replaced for a CS/CJ-series, CVM1, or CV-
series Controller Link Unit, do not connect that node to the Network before
carrying out the above procedures. In particular, a node with a small address
will become the polling node and communicate the initial network parameter
status to other nodes, so there is the chance that network parameters in the
entire Network will be damaged.
9-6-3
Replacing the Unit
C200HX/HG/HE and CQM1H-series Controller Link Units
Using the Controller Link
Support Software
1,2,3...
1.
From the Maintenance Menu on the Controller Link Support Software, se-
lect “Unit Back-up” and then “Unit –> Computer.” The data will be saved as
a file in the Unit’s EEPROM.
Data link tables and network parameters are saved in this way.
2.
Turn off all nodes in the Controller Link Network.
3.
Detach the communications cables and the Bus Connection Unit attached
to the Controller Link Unit to be replaced and remove the Unit.
4.
Mount the new Controller Link Unit in the PLC and connect the communi-
cations cables and the Bus Connection Unit. (Refer to
5.
Set the node address, baud rate, operating level (front DIP switch,
C200HX/HG/HE only) and the terminating resistance for the new Unit to
the same settings as the previous Unit. (Refer to
)
6.
Turn on only those PLCs for which Units were replaced.
7.
From the Maintenance Menu on the Controller Link Support Software, se-
lect “Unit Back-up” and then “Computer –> Unit” and the data saved in step
1. will be loaded to the Unit’s EEPROM.
8.
Cycle the power supply to the PLC where the Unit was replaced.
9.
Turn on all other nodes in the Controller Link Network.
10. Using the Controller Link Support Software, read the network parameters
and make sure the Network is operating normally.
11. If the data links are not activated automatically, activate the data links from
the data link startup node.
12. Check that the data links are operating normally by using the “Data Link
Status Monitor” on the Controller Link Support Software.
Not Using the Controller
Link Support software
Note
When manually set data links are used, the Controller Link Support Software
is essential. When the Controller Link Unit being replaced does not have
active manually set data links or it has active automatically set data links, the
replacement process can be carried out without the Controller Link Support
Software. In this case, however, a Programming Device is necessary.
1,2,3...
1.
Turn off all nodes in the Controller Link Network.
2.
Detach the communications cables and the Bus Connection Unit attached
to the Controller Link Unit to be replaced and remove the Unit.
3.
Mount the new Controller Link Unit in the PLC and connect the communi-
cations cables and the Bus Connection Unit. (Refer to
)
Summary of Contents for C200HW-CLK21
Page 3: ...iv ...
Page 9: ...x ...
Page 12: ...xiii TABLE OF CONTENTS Index 367 Revision History 373 ...
Page 13: ...xiv ...
Page 19: ...xx ...
Page 57: ...32 Application Precautions Section 1 5 Example CX Programmer Response Timeout Setting ...
Page 69: ...44 Message Service Procedure Section 2 2 ...
Page 111: ...86 Constructing Networks with Repeater Units Section 3 4 ...
Page 154: ...129 Setting Data Links Section 5 2 Device Information Setting Data Link Tables ...
Page 261: ...236 Response Codes Section 6 7 ...
Page 297: ...272 Message Delay Times Section 8 4 ...
Page 353: ...328 Handling Precautions Section 9 6 ...
Page 364: ...339 Changing the Data Link Tables with Active Data Links Section 10 2 ...
Page 365: ...340 Changing the Data Link Tables with Active Data Links Section 10 2 ...
Page 369: ...344 Standard Models Appendix A ...
Page 391: ...366 Using the Relay Terminal Block Appendix C ...
Page 397: ...372 Index ...
Page 401: ...376 Revision History ...