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xxv
Applications Precautions
5
• Double-check all wiring and switch settings before turning ON the power
supply. Incorrect wiring may result in burning.
• Wire all connections correctly.
• Mount Units only after checking terminal blocks completely.
• Be sure that the Bus Connection Units and other items with locking
devices are properly locked into place. Improper locking may result in
malfunction.
• Use special packing box when transporting the Controller Link Unit. Han-
dle the product carefully so that no excessive vibration or impact is
applied to the product during transportation.
• Check the user program for proper execution before actually running it on
the Unit. Not checking the program may result in an unexpected opera-
tion.
• Confirm that no adverse effect will occur in the system before attempting
any of the following. Not doing so may result in an unexpected operation.
• Changing the operating mode of the PLC. (including the setting of the
startup operating mode)
• Force-setting/force-resetting any bit in memory.
• Changing the present value of any word or any set value in memory.
• Inappropriate settings in data link tables or routing tables can cause unex-
pected system operation. Always check table settings before starting
operation, and always test the settings in trial operation before starting or
stopping the data links in actual operation.
• CPU Bus Units will be automatically restarted when routing tables are
transferred from a Programming Device to the CPU Unit. Resetting is
required to use the new tables. Confirm that restarting the CPU Bus Units
will not adversely affect system operation before transferring routing
tables.
• Observe the following precautions when wiring the communications
cables.
• Separate the cables from the power lines or high-tension lines.
• Do not bend the cables.
• Do not pull on the cables.
• Do not place heavy objects on top of the cables.
• Route cables inside conduits.
• Before touching the Unit, be sure to first touch a grounded metallic object
in order to discharge any static build-up.
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 ...