Mitsubishi Electronics FX3G User Manual
86
FX
3S
/FX
3G
/FX
3GC
/FX
3U
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3UC
Series
Programming Manual - Basic & Applied Instruction Edition
4 Devices in Detail
4.1 Device Number List
Data register (32 bits when used in pair form)
General type (16 bits)
D0 to D127
128 points
Section 4.9
EEPROM keep type
(16 bits)
(16 bits)
D128 to D1099
972 points
General type (16 bits)
*1
D1100 to D7999
6900 points
EEPROM keep type
(16 bits) <file register>
(16 bits) <file register>
D1000 to D7999
7000 points
Among 7000 latched type data registers backed
up by the EEPROM, D1000 and later can be set
as file registers in units of 500 points by the
parameter setting.
up by the EEPROM, D1000 and later can be set
as file registers in units of 500 points by the
parameter setting.
Special type (16 bits)
*2
D8000 to D8511
512 points
Chapter 37
Index type (16 bits)
V0 to V7, Z0 to Z7
16 points
Section 4.11
Extension register/Extension file register
Extension register
(16 bits)
(16 bits)
*1
R0 to R23999
24000 points
Section 4.10
Extension file register
(16 bits)
(EEPROM keep)
(16 bits)
(EEPROM keep)
ER0 to ER23999
24000 points
Pointer
For jump and branch call
P0 to P2047
2048 points
For CJ and CALL instructions
Section 4.12
Input interrupt
I0
to I5
6 points
Timer interrupt
I6
to I8
3 points
Nesting
For master control
N0 to N7
8 points
For MC instruction
Constant
Decimal (K)
16 bits
−32,768 to +32,767
Chapter 5
32 bits
−2,147,483,648 to +2,147,483,647
Hexadecimal (H)
16 bits
0 to FFFF
32 bits
0 to FFFFFFFF
Real number (E)
*3
32 bits
−1.0 × 2
128
to
−1.0 × 2
−126
, 0, 1.0
× 2
−126
to 1.0
× 2
128
Both the decimal point expression and the exponent expression
are available.
are available.
*1.
When the optional battery is installed, general type devices can be changed to latched (battery backed) type
devices by the parameter setting. However, the latched range cannot be set.
devices by the parameter setting. However, the latched range cannot be set.
*2.
For applicable functions, refer to Chapter 37.
For handling of the latched area, refer to Section 2.6.
For handling of the latched area, refer to Section 2.6.
*3.
Available in Ver. 1.10 or later.
Device name
Description
Reference