Mitsubishi Electronics FX3G User Manual
721
FX
3S
/FX
3G
/FX
3GC
/FX
3U
/FX
3UC
Series
Programming Manual - Basic & Applied Instruction Edition
33 Extension File Register Control – FNC290 to FNC299
33.2 FNC291 – SAVER / Save to ER
31
FNC277
-F
NC2
79
79
Da
ta
Trans
fer 3
fer 3
32
FNC28
0-F
NC
289
289
H
igh-Speed
Process
ing 2
33
FNC2
90-
FNC299
FNC299
Ex
tensi
on Fi
le
le
Register C
ontrol
34
FN
C300-
FNC30
5
FX
3U
-C
F-
AD
P
35
SFC
•STL
Programming
36
Interrupt
Function
37
Sp
ec
ia
l D
evi
ce
38
E
rror Code
A
Ve
rsi
on U
p
Inform
ati
on
B
Ex
ecuti
on
T
imes
Errors
An operation error is caused in the following cases; The error flag M8067 turns ON, and the error code is stored in
D8067.
D8067.
• When any device number other than the head device number of a sector of extension file registers is set to
(error code: K6706)
• When a memory cassette is not connected (error code: K6771)
• When the protect switch of the memory cassette is set to ON (error code: K6770)
• When the collation result after data writing is a "mismatch" due to omission of initialization or for another reason
• When the protect switch of the memory cassette is set to ON (error code: K6770)
• When the collation result after data writing is a "mismatch" due to omission of initialization or for another reason
(error code: K6770)
When this error occurs, the current values (data) of extension registers (R) may be lost. To avoid the data loss,
back up the data of extension registers (R) in advance using the following procedure:
1) Set the PLC mode to STOP.
2) Create a new project in GX Works2.
When this error occurs, the current values (data) of extension registers (R) may be lost. To avoid the data loss,
back up the data of extension registers (R) in advance using the following procedure:
1) Set the PLC mode to STOP.
2) Create a new project in GX Works2.
This step is not necessary if it is alright to overwrite the current project.
3) Read the contents of extension registers (R) to GX Works2.
[1] Select “Online”
→ “Read from PLC..." to
display the Online Data Operation dialog box.
[2] Click "PLC Parameter/Network Parameter"
and "Device Data/File Register" to check
mark each of them.
mark each of them.
[3] Click [Execute] button.
[4] When reading is completed, save the project.
[4] When reading is completed, save the project.
4) Change the current program inside the PLC to
the program shown in “Cautions on writing data to
a memory cassette” in “Cautions” on the previous
page.
a memory cassette” in “Cautions” on the previous
page.
5) Write the data which was temporarily withdrawn to GX Works2 to the PLC.
[1] Select “Online”
→ “Write to PLC...” to display
the Online Data Operation dialog box.
[2] Click "PLC Parameter/Network Parameter"
and “MAIN” to check mark each of them.
[3] Click [Execute] button.
6) Change the PLC mode from STOP to RUN, execute the program, and store the data to the extension file
registers inside the memory cassette.
S