User manual

7–6
Chapter 7 – RUN Mode and Errors
LT Series User Manual
YES
YES
YES
1 Also known as “FEEPROM” (Flash Electronic Erasable Programmable Read Only
Memory).
2 When you run the SELF-DIAGNOSIS area’s FLASH EPROM CHECK, all screen data
is erased. Therefore, be sure to make a backup of all LT screens prior to performing
this check.
Erase the data that has been written. When
using Direct Access, the address is +9; when
using Memory Link, the address is 12.
For more information on
the SYSTEM DATA AREA, refer to the
LT Editor Device Connection Manual
(included with the LT Editor software)
and GP-PRO/PBIII Device/PLC Con-
nection Manual.
NO
There is a problem with the
LT unit. Please contact your
local LT distributor.
Has
Display Off
data been written to the
SYSTEM DATA
AREA?
NO
YES
Has
Backlight Off
data been written to the
SYSTEM DATA
AREA?
An error may have occurred within
Internal FLASH EPROM
*2
Data while
being transferred.
Initialize the FLASH EPROM, transfer
the data, and try using again.
Erase the data that has been written.
When using Direct Access, the address is
+14; when using Memory Link, the
address is 11.
For more information on
the SYSTEM DATA AREA, refer to the
LT Editor Device Connection Manual
(included with the LT Editor software)
and GP-PRO/PBIII Device/PLC Con-
nection Manual.
NO
NO
Run
SELF-DIAGNOSIS
INTERNAL FEPROM
*1
CHECK
*2
.
Is it OK?