555
a No
This is a sequential number assigned to the items in the 
error log.
b Date/Time
This shows the date and time the status change occurred.
c Device
This shows the device on which the status change 
occurred.
d Status
This shows the details of the status change.
If you press on the list, this switches the display to reverse 
video, and selects the item. You can also select items in the 
error log using parameters.
e Clear button
This deletes the selected error log item from the list.
f Plural button
Press [Plural] to enable selection of more than one log. To 
cancel the selection, press once again to return to the 
normal display.
g ALL button
Press [ALL] to select all logs. To cancel the selection, 
press once again to return to the normal display.
h Error Popup button
This selects whether or not to display “ERROR” on the 
menu title button when an error occurs. This button is 
linked to [Error Popup] in the error status menu.
To enable display of the word “ERROR,” press [Error 
Popup], turning it on.
Error Messages Appearing in a 
Message Box
An icon is displayed, corresponding to the content of the 
message.
a No
b Date/Time
c Device
d Status
e Clear button
f Plural button
g ALL button
h Error Popup 
button
Message
Icon
Title
Icon Message Description
Activate License
The license key you entered is invalid.
Please check and enter again.
7316.7: Engineering Setup >System >Install/Unit Config >License >License 
Management
The Activate License procedure failed because the entered information was 
incorrect.
Check the license key, and enter again.