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13
Safety Precautions
CompoNet Communications Unit User’s Manual (I582-E1)
Do not attempt to remove the terminal block cover or disconnect and reconnect the CompoNet Communications
Unit during power on or within 10 minutes after power off.
Doing so may result in severe injury due to electric shock.
Security Measures
Anti-virus protection
Install the latest commercial-quality antivirus software on the computer connected to the control system
and maintain to keep the software up-to-date.
Security measures to prevent unauthorized access
Take the following measures to prevent unauthorized access to our products.
• Install physical controls so that only authorized personnel can access control systems and equipment.
• Reduce connections to control systems and equipment via networks to prevent access from untrusted
devices.
• Install firewalls to shut down unused communications ports and limit communications hosts and isolate
control systems and equipment from the IT network.
• Use a virtual private network (VPN) for remote access to control systems and equipment.
• Adopt multifactor authentication to devices with remote access to control systems and equipment.
• Set strong passwords and change them frequently.
• Scan virus to ensure safety of USB drives or other external storages before connecting them to control
systems and equipment.
Data input and output protection
Validate backups and ranges to cope with unintentional modification of input/output data to control systems
and equipment.
• Checking the scope of data
• Checking validity of backups and preparing data for restore in case of falsification and abnormalities
• Safety design, such as emergency shutdown and fail-soft operation in case of data tampering and
abnormalities
Data recovery
Backup data and keep the data up-to-date periodically to prepare for data loss.
When using an intranet environment through a global address, connecting to an unauthorized terminal
such as a SCADA, HMI or to an unauthorized server may result in network security issues such as spoof-
ing and tampering. You must take sufficient measures such as restricting access to the terminal, using a
terminal equipped with a secure function, and locking the installation area by yourself.
When constructing an intranet, communication failure may occur due to cable disconnection or the influ-
ence of unauthorized network equipment. Take adequate measures, such as restricting physical access to
network devices, by means such as locking the installation area.
When using a device equipped with the SD Memory Card function, there is a security risk that a third party
may acquire, alter, or replace the files and data in the removable media by removing the removable media
or unmounting the removable media.
Please take sufficient measures, such as restricting physical access to the Controller or taking appropriate
management measures for removable media, by means of locking the installation area, entrance manage-
ment, etc., by yourself.
DANGER
WARNING
Summary of Contents for 3G3AX-MX2-CRT-E
Page 94: ...3 Network Startup 3 36 CompoNet Communications Unit User s Manual I582 E1...
Page 118: ...4 Remote I O 4 24 CompoNet Communications Unit User s Manual I582 E1...
Page 134: ...5 Message Communications 5 16 CompoNet Communications Unit User s Manual I582 E1...
Page 167: ...I 1 I CompoNet Communications Unit User s Manual I582 E1 Index...
Page 171: ......