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Precautions for Safe Use
Handling
• Use the special packing box when transporting a Unit. Also, protect the Unit from being exposed to
excessive vibration or impact during transportation.
• Do not drop the Units or expose them to excessive vibration or impact. Doing so may result in failure
or malfunction.
• Check the user program for proper execution before actually running it on the Unit.
• Do not attempt to dismantle the Unit for repairs or modify it in any way.
• Confirm that no adverse effect will occur in the system before attempting any of the following.
• Changing the operating mode of the PLC
• Starting or stopping the user program
• Force-setting/force-resetting any bit in memory
• Changing the present value of any word or any set value in the user program
• Performing I/O tests
• Using the user compensation functions for an Output Unit
• Do not use organic thinners to clean the Unit. Use commercially available alcohol.
External Circuits
• Install external breakers and take other safety measures against short-circuiting in external wiring.
• Fail-safe measures must be taken by the customer to ensure safety in the event of incorrect, missing,
or abnormal signals caused by broken signal lines, momentary power interruptions, or other causes.
• Construct the control circuits so that the power supply to the CompoNet Gateway Unit turns ON only
after the power supply to I/O Slave Units. If the power supply to I/O Slave Units is turned ON after the
power supply to the CompoNet Gateway Unit, normal operation may be temporarily inhibited.
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CompoNet Gateway Unit for CC-Link Operation Manual
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Troubleshooting
