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FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
33 Extension File Register Control – FNC290 to FNC299
33.6 FNC295 – INITER / Initialize ER
31
FNC275-FNC279
Data
Transfer 3
32
FNC280-FNC289
High Speed
Processing 2
33
FNC290-FNC299
Extension File
Register
34
FNC300-FNC305
FX
3U
-CF-ADP
35
SFC•STL
Programming
36
Interrupt
Function
37
Special Device
38
Error Code
A
Version Up
Information
B
Execution Times
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 PLCs 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
33
n 33
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