Mitsubishi Electric GOT SIMPLE Series, User Manual

Page: 4 / 310

2
[DESIGN PRECAUTIONS]
[DESIGN PRECAUTIONS]
WARNING
● The display section of the GOT is an analog-resistive type touch panel. Simultaneous pressing of two
or more areas on the display section may activate the switch between those areas. Do not press two
or more areas simultaneously on the display section. Doing so may cause an accident due to incorrect
output or malfunction.
● When programs or parameters of the controller (such as a PLC) that is monitored by the GOT are
changed, be sure to shut off the power of the GOT promptly and power on the GOT again. Not doing
so can cause an accident due to false output or malfunction.
●
If a communication fault (including cable disconnection) occurs during monitoring on the GOT,
communication between the GOT and PLC CPU is suspended and the GOT becomes inoperative. A
system where the GOT is used should be configured to perform any significant operation to the
system by using the switches of a device other than the GOT on the assumption that a GOT
communication fault will occur. Not doing so can cause an accident due to false output or malfunction.
● To maintain the security (confidentiality, integrity, and availability) of the GOT and the system against
unauthorized access, DoS
*1
attacks, computer viruses, and other cyberattacks from unreliable
networks and devices via network, take appropriate measures such as firewalls, virtual private
networks (VPNs), and antivirus solutions.
Mitsubishi Electric shall have no responsibility or liability for any problems involving GOT trouble and
system trouble by unauthorized access, DoS attacks, computer viruses, and other cyberattacks.
*1 DoS: A denial-of-service (DoS) attack disrupts services by overloading systems or exploiting
vulnerabilities, resulting in a denial-of-service (DoS) state.
CAUTION
●
Do not bundle the control and communication cables with main-circuit, power or other wiring. Run the
above cables separately from such wiring and keep them a minimum of 100mm apart. Not doing so
noise can cause a malfunction.
●
Do not press the GOT display section with a pointed material as a pen or driver. Doing so can result in
a damage or failure of the display section.
●
When the GOT is connected to the Ethernet network, the available IP address is restricted according
to the system configuration.
When multiple GOTs are connected to the Ethernet network:
Do not set the IP address (192.168.3.18) for the GOTs and the controllers in the network.
When a single GOT is connected to the Ethernet network:
Do not set the IP address (192.168.3.18) for the controllers except the GOT in the network.
Doing so can cause the IP address duplication. The duplication can negatively affect the
communication of the device with the IP address (192.168.3.18). The operation at the IP address
duplication depends on the devices and the system.
●
Turn on the controllers and the network devices to be ready for communication before they
communicate with the GOT. Failure to do so can cause a communication error on the GOT.
●
When the GOT is subject to shock or vibration, or some colors appear on the screen of the GOT, the
screen of the GOT might flicker.