768
FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
33 Extension File Register Control – FNC290 to FNC299
33.3 FNC292 – INITR / Initialize R and ER
The table below shows the head device number in each sector:
Operation (when a memory cassette is used)
Caution
1. Initialization of two or more sectors
When a memory cassette is attached, 18 ms is required to initialize one sector.
(When a memory cassette is not attached, only 1 ms or less is required to initialize one sector.)
When initializing two or more sectors, take either measures shown below.
• Set a large value to the watchdog timer D8000 using the following program
Sector
number
Head device
number
Initialized device range
Sector
number
Head device
number
Initialized device range
Sector 0 R0
R0 to R2047,
ER0 to ER2047
Sector 8 R16384
R16384 to R18431,
ER16384 to ER18431
Sector 1 R2048
R2048 to R4095,
ER2048 to ER4095
Sector 9 R18432
R18432 to R20479,
ER18432 to ER20479
Sector 2 R4096
R4096 to R6143,
ER4096 to ER6143
Sector 10 R20480
R20480 to R22527,
ER20480 to ER22527
Sector 3 R6144
R6144 to R8191,
ER6144 to ER8191
Sector 11 R22528
R22528 to R24575,
ER22528 to ER24575
Sector 4 R8192
R8192 to R10239,
ER8192 to ER10239
Sector 12 R24576
R24576 to R26623,
ER24576 to ER26623
Sector 5 R10240
R10240 to R12287,
ER10240 to ER12287
Sector 13 R26624
R26624 to R28671,
ER26624 to ER28671
Sector 6 R12288
R12288 to R14335,
ER12288 to ER14335
Sector 14 R28672
R28672 to R30719,
ER28672 to ER30719
Sector 7 R14336
R14336 to R16383,
ER14336 to ER16383
Sector 15 R30720
R30720 to R32767,
ER30720 to ER32767
• Extension registers (R)
[inside the built-in RAM memory]
• Extension file registers (ER)
[inside the memory cassette]
Device number
Current value
Device number
Current value
Before execution After execution Before execution After execution
H0010 HFFFF H1234 HFFFF
+1
H0020 HFFFF
+1
H5678 HFFFF
+2
H0011 HFFFF
+2
H90AB HFFFF
...
...
...
...
...
...
+(2048×n)-1
HABCD HFFFF
+(2048×n)-1
HCDEF HFFFF
S S
S S
S S
S S
M8002
FNC 12
MOV
K
{{{
D8000
Initial pulse
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