Omron NX-SL3300 User Manual page 32

Precautions for Correct Use
Turning OFF the Power Supply
• Do not turn OFF the power supply while data is being transferred.
General Communications
• Refer to the user's manual for the CPU Unit or Communications Coupler Unit for precautions for the
correct use of communications with the connected CPU Unit or Communications Coupler Unit.
Debugging
• The task period affects the safety response performance. If the task period changes due to changes
in the configuration or programs, recalculate the safety reaction times.
• If you change the I/O for a variable to publish to a NJ/NX-series CPU Unit, the device variable as-
signments to the NJ/NX-series CPU Unit will be canceled. In this case, you need to assign the de-
vice variables, and then transfer the settings and programs to the NJ/NX-series CPU Unit. After you
transfer the settings and programs, check that the operation of the NJ/NX-series CPU Unit is cor-
rect.
• If you change the exposed variable in the EtherNet/IP Slave Terminal configuration, the I/O alloca-
tions of the EtherNet/IP Couplers Unit will be changed. Check that the operation of the EtherNet/IP
Coupler Unit is correct.
• For security purposes, we recommend that you set a password for the Safety CPU Unit and the
project file. To avoid the leakage, keep the passwords under strict control. Especially, when you
transmit password data through the Internet, implement a measure to secure the transmission such
as by using the public key encryption.
• If you lose the password that is set to the Safety CPU Unit, you will no longer be able to make
changes to the Safety CPU Unit. Take caution not to lose the password. If you want to reset the con-
figured password, contact your OMRON representative.
• For safety data logging, make sure to use the settings file generated from the same project file as
the logging target.
Periodic Inspections and Maintenance
• Do not disassemble, repair, or modify the Safety Control Unit. Doing so may lead to loss of safety
functions.
Disposal
• Be careful not to injure yourself when dismantling the Safety Control Unit.
30
NX-series Safety Control Unit User's Manual (Z930)