Mitsubishi Electric AE-200A Service Handbook page 71

[V Troubleshooting]
Symptom
The controls of the Web browser and Java
Web browser are versions are different.
grayed out and
display is not possible
or extremely slow.
3
Display by the Web LAN communication error.
browser is not
possible using the
HTTPS (SSL)
Web browser and Java VM
protocol.
versions are different.
A Web browser setting is
incorrect.
4
Combination of OS, Internet
Explorer, and Oracle Java
Plug-in.
Sometimes the entire Refresh the display screen.
icon for an error or
filter sign that is
5
occurring blinks.
Cause
Version of the Web browser
(Internet Explorer) is earlier
than 8.0
Web browser other than
Internet Explorer is used.
The Oracle Java Plug-in is
not enabled (or is not
installed).
Version of the Oracle Java
Plug-in is earlier than
1.7.0_51.
Internet Explorer and Oracle
Java Plug-in mismatch.
Check procedure and remedy
The Web browser with which AE-200/AE-50/EW-50 Web can be used is
Internet Explorer version 8.0 or later.
If the browser used is earlier than version 8.0, problems may occur, such
as not being able to display the Web screen at all or not being able to
select numerical values.
Furthermore, if the version of Java VM (Java Virtual Machine) used as a
plug-in of the browser is old or a VM that can be used is not installed, the
screen may be displayed normally but the controls of the Web screen will
remain grayed out.
Update the version of Internet Explorer to 8.0 or later.
Use Internet Explorer version 8.0 to 11.0.
If the Oracle Java Plug-in is enabled, a picture of a coffee cup is displayed
at the top left when the controls of the Web screen are grayed out . Click
[Internet Options] in the [Tools] menu of Internet Explorer, select the
[Advanced] tab, and then select the [Use ... for <applet>] check box of
[Java (Sun)].
If the Oracle Java VM is not installed, it can be downloaded from the
Oracle website. Download and install it.
Update the version of the Oracle Java Plug-in to 1.7.0_51 or later. (You
can check the version by clicking [Java] in the control panel and clicking
the [About...] button on the [General] (or [Basic]) tab.)
Install the 32-bit version of the Oracle Java Plug-in when using the 32-bit
version of Internet Explorer, and the 64-bit version of the Oracle Java
Plug-in when using the 64-bit version of Internet Explorer.
Check the same items as "LAN communication error" and "A Web
browser setting is incorrect" of "Display by the Web browser is not
possible."
Check the same items as "Web browser and Java VM versions are
different" of "The controls of the Web browser are grayed out and display
is not possible or extremely slow."
If a setting of the Web browser has been set incorrectly or not been set,
display by the Web browser is not possible using the HTTPS (SSL)
protocol.
→ Set the settings as described in "2-3. Java settings" of
AE-200/AE-50/EW-50 Instruction Book (Web Browser for
Administrator).
There are cases where display by the Web browser is not possible
because of the combination of the OS, Internet Explorer, and Java
Plug-in versions.
→ If the problem is not resolved even after implementing the check
methods and solutions for the three causes above, change the
version of one of the OS, Internet Explorer, and Java Plug-in or use
the Web browser with the HTTP protocol.
→ If the version of the Oracle Java Plug-in is between Java 7 and Java
7 update 5, a connection with the HTTPS protocol is not possible, so
update the version to Java 7 update 6 or later.
The problem may be resolved by replacing the display, updating the
driver software, changing the refresh rate of the display, etc.
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