Omron V680S-HMD64-PNT User Manual page 315

 Java Security Settings Are Not Displayed
This section describes the countermeasure when the exception site list is not displayed and operation
is not possible.
If the tab page to change Java security settings does not appear and you cannot change the settings
when you select the Security Tab in step 2 of the procedure in Countermeasure for Security Settings,
use the following procedure.
(1) Open the Control Panel and uninstall all Java programs.
(2) After you uninstall all of the programs, go to the following website and install Java.
https://www.oracle.com/technetwork/java/archive-139210.html
(*URL is as of April 2019 and may change in the future.)
Refer to Operating environment when using a web browser. for Java versions that can be used.
p.307
Java security features have been improved for the most recent version of Java, so the same problem may occur.
Section 11
Appendices
RFID System
313
User's Manual
(PROFINET)