Mitsubishi Electronics FX3G 사용자 설명서
734
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
33.5 FNC294 – RWER / Rewrite to ER
2) In FX
3G
/FX
3GC
PLCs
a) When a memory cassette is connected (A memory cassette can be connected only to FX
3G
PLC.)
The contents (current values) of “n” extension registers (R) starting from are written (transferred) to extension
file registers having with same device numbers in a memory cassette (flash memory).
file registers having with same device numbers in a memory cassette (flash memory).
*1.
All points specified by the instruction are written (transferred).
b) When a memory cassette is not connected
The contents (current values) of "n" extension registers (R) starting from
are written (transferred) to
extension file registers which are stored in the EEPROM built into the PLC and have the same device
numbers.
numbers.
*2.
All points specified by the instruction are written (transferred).
FNC290
RWERP
RWERP
S
n
Command
input
E
E +1
E +2
E +n-1
+1
+2
+n-1
*1
Write
(transfer)
Extension file registers (ER)
inside memory cassette
inside memory cassette
Extension registers (R) inside
built-in RAM
built-in RAM
S
S
S
S
S
S
S
S
S
FNC290
RWERP
RWERP
S
n
Command
input
E
E +1
E +2
E +n-1
+1
+2
+n-1
*2
Write
(transfer)
Extension registers (R) inside
built-in RAM
built-in RAM
S
S
S
S
S
S
S
S
Extension file registers (ER)
inside built-in EEPROM
inside built-in EEPROM