Mitsubishi Electronics FX3G User Manual
715
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
33.1 FNC290 – LOADR / Load From 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
33.1
FNC290 – LOADR / Load From ER
Outline
This instruction reads the current values of extension file registers (ER) stored in the attached memory cassette (flash
memory or EEPROM) or EEPROM built into the PLC, and transfers them to extension registers (R) stored in the RAM
in the PLC.
memory or EEPROM) or EEPROM built into the PLC, and transfers them to extension registers (R) stored in the RAM
in the PLC.
1. Instruction format
2. Set data
3. Applicable devices
Explanation of function and operation
1. 16-bit operation (LOADR and LOADRP)
1) In FX
3U
/FX
3UC
PLCs
The contents (current values) of extension file registers (ER) stored in a memory cassette (flash memory) with the
same numbers as the extension registers specified by
same numbers as the extension registers specified by
to
+n-1 are read, and transferred to the
extension registers specified by
to
+n-1 stored in the PLC's built-in RAM.
• Reading (transferring) is executed in device units. Up to 32,768 devices can be read (transferred).
• As apposed to the SAVER (FNC291), INITR (FNC292) and LOGR (FNC293) instructions, it is not necessary to
• As apposed to the SAVER (FNC291), INITR (FNC292) and LOGR (FNC293) instructions, it is not necessary to
execute this instruction in sector units.
• If “n” is set to “0”, it is handled as “32768” when the instruction is executed.
Operand Type
Description
Data Type
Device number of extension register to which data is to be transferred
(The extension file register with the same number is handled as the data transfer source.)
(The extension file register with the same number is handled as the data transfer source.)
16-bit binary
n
Number of points to be read (transferred)
[FX
[FX
3G
/FX
3GC
: 1
≤ n ≤ 24000, FX
3U
/FX
3UC
: 0
≤ n ≤ 32767]
Oper-
and
Type
Bit Devices
Word Devices
Others
System User
Digit Specification
System User
Special
Unit
Index
Con-
stant
stant
Real
Number
Charac-
ter String
Pointer
X Y M T C S D .b KnX KnY KnM KnS T C D R U \G
V Z Modify K H
E
" "
P
n
FNC 290
LOADR
Mnemonic
Operation Condition
16-bit Instruction
5 steps
LOADR
LOADRP
Mnemonic
Operation Condition
Continuous
Operation
Pulse (Single)
Operation
Operation
Pulse (Single)
Operation
32-bit Instruction
P
S
S
S
S
S
S
FNC290
LOADRP
S
n
Command
input
E
E +1
E +2
E +3
E +n-2
E +n-1
+1
+2
+3
+n-2
+n-1
Read
(transfer)
Extension file registers (ER)
inside memory cassette
inside memory cassette
Extension registers (R)
inside built-in RAM
inside built-in RAM
S
S
S
S
S
S
S
S
S
S
S
S