Precautions for Correct Use
22
NX-series Communications Interface Units User’s Manual (W540)
Before you transfer the communications settings to the Unit, confirm that the controlled system will not
be adversely affected.
• If you change the event level of an error, the output status when the error occurs may also change.
Conf
irm safety before you change an event level.
• Do not exceed the NX Unit power supply capacity. If you ex
ceed the NX Unit power supply capacity,
failure or malfunction may occur.
• Use CPU Unit, Communications Coupler Unit, and Suppor
t Software versions that support the CIF
Unit. If you use versions that do not support the CIF Unit, malfunctions may occur.
• Do not turn OFF the power supply while data is being transferred.
• Do not turn OFF the power supply while parameters are being
written to the CPU Unit, the Communi-
cations Coupler Unit or NX Units.
• Refer to the user’s manual for the Communications Coup
ler Unit for precautions for the correct use of
communications with the connected Communications Coupler Unit.
• When removing an NX Unit, remove multiple Units to
gether which include the one you want to
remove. If you attempt to remove only one Unit, it is stuck and hard to pull out.
Transferring Data
Actual Operation
Turning OFF the Power Supply
General Communications
Unit Replacement
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