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[Setup and Maintenance Precautions]
!
CAUTION
• Please read this manual thoroughly and confirm the safety before starting online operations
(especially, program modifications, forced outputs, and operating status modifications), which
are performed by connecting the GX Developer via the MELSECNET/H network system to a
running CPU module of other station. Performing incorrect online operations may damage the
machinery or result in accidents.
• Never disassemble or modify the module. This may cause breakdowns, malfunctions, injuries or
fire.
• Use any radio communication device such as a cellular phone or a PHS phone more than 25cm
(9.85 inch) away in all directions of the programmable controller.
Not doing so can cause a malfunction.
• Completely turn off the externally supplied power used in the system before mounting or
removing the module. Failure to do so may damage the module or result in malfunctions.
• Do not touch the terminals while the power is on. Doing so may cause malfunctions.
• Switch off all phases of the externally supplied power used in the system when cleaning the
module or retightening the terminal or module mounting screws. Failure to completely shut off all
phases of the external power supply may cause module breakdowns and malfunctions. If the
screws are loose, it may cause the module to short-circuit, malfunction or fall off. If the screws
are tightened excessively, it may damage the screws and cause the module to short circuit,
malfunction or fall off.
• Do not install/remove the module to/from the base unit more than 50 times after the first use of
the product. (IEC 61131-2 compliant)
Failure to do so may cause malfunction.
• Before handling the module, always touch grounded metal, etc. to discharge static electricity
from the human body.
Not doing so may cause a failure or malfunction of the module.