User`s manual

Chapter 6 - GP RUN and Errors
GP-477R/577R Series User's Manual 6-9
When the FEPROM is normal, OK displays; if there is a problem, an error
message appears.
The marks that appear on the GP screen indicate which action is being
performed. The "O" mark indicates an erase check, and the "
*
" mark indi-
cates a R/W check.
INTERNAL FEPROM CHECKSUM (System & Protocol)
The Internal FEPROM System and Protocol check searches for any problems
that may arise during operations. When running the check, the screen will
change as follows.
When the FEPROM is normal, OK displays; if there is a problem, an error
message appears. This check does not erase the System or Protocol.
FRAME BUFFER
The Frame Buffer (display memory) Check looks for any display problems
that may develop. When everything is normal, OK displays; when there is a
problem, an error message displays.
TOOL CONNECTOR LOOP BACK
Use the Tool Connector Control line and Send/Receive line check when the
GP cannot send and receive data from the PC. To run the check, connecting
a Tool Connector Check Loop Back Cable (Dsub9 pin, pin-side) mounted to
the Downloading Cable (provided in the software package) is necessary.
When everything is normal, OK displays; when there is a problem, an error
message displays.
CD
RD
SD
ER
RS
CS
Dsub9P
1
2
3
4
7
8
Dsub
9P
*1 When using GPW-CB-SET as a transfer cable, a loop back cable for the data transfer cable
should be made, as shown here.
FG
SD
RD
RS
CS
CD
ER
Dsub
25S
1
2
3
4
5
8
20
(Created by User)
Data Transfer
cable
*1