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FX3S/FX3G/FX3GC/FX3U/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
33 Extension File Register Control – FNC290 to FNC299
33.6 FNC295 – INITER / Initialize ER
33.6 FNC295 – INITER / Initialize ER
Outline
This instruction initializes extension file registers (ER) to “HFFFF” (<K-1>) in a memory cassette (flash memory) before
executing the SAVER (FNC291) instruction.
Because the INITER (FNC295) instruction is not supported in FX
3UC PLC earlier than Ver. 1.30, use INITR (FNC292)
instruction instead.
→ For SAVER (FNC291) instruction, refer to Section 33.2.
→ For INITR (FNC292) instruction, refer to Section 33.3.
1. Instruction format
2. Set data
3. Applicable devices
Explanation of function and operation
1. 16-bit operation (INITER and INITERP)
“n” sectors of extension file registers (ER) in a memory cassette (flash memory) with the same device number as
are initialized to “HFFFF” (<K-1>).
Initialization is executed in sectors.
The table below shows the head device number in each sector:
Operand Type Description Data Type
Head device number of extension register sector with the same device number as the
extension file register to be initialized
16-bit binary
n Number of sectors of extension file registers to be initialized
Oper-
and
Type
Bit Devices Word Devices Others
System User Digit Specification System User
Special
Unit
Index
Con-
stant
Real
Number
Charac-
ter String
Pointer
XYMTCSD
.b KnX KnY KnM KnS T C D R
U\G
V Z Modify K H E "
"P
n
Sector
number
Head device
number
Initialized device range
Sector
number
Head device
number
Initialized device range
Sector 0 R0 ER0 to ER2047 Sector 8 R16384 ER16384 to ER18431
Sector 1 R2048 ER2048 to ER4095 Sector 9 R18432 ER18432 to ER20479
Sector 2 R4096 ER4096 to ER6143 Sector 10 R20480 ER20480 to ER22527
Sector 3 R6144 ER6144 to ER8191 Sector 11 R22528 ER22528 to ER24575
Sector 4 R8192 ER8192 to ER10239 Sector 12 R24576 ER24576 to ER26623
Sector 5 R10240 ER10240 to ER12287 Sector 13 R26624 ER26624 to ER28671
Sector 6 R12288 ER12288 to ER14335 Sector 14 R28672 ER28672 to ER30719
Sector 7 R14336 ER14336 to ER16383 Sector 15 R30720 ER30720 to ER32767
P
FNC 295
INITER
Mnemonic Operation Condition
16-bit Instruction
5 steps
INITER
Mnemonic Operation Condition
Continuous
Operation
32-bit Instruction
⎯
⎯
INITERP
Pulse (Single)
Operation
S
S
S
FNC295
INITERP
n
S
Command
input