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FX3S/FX3G/FX3GC/FX3U/FX3UC 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)
D128 to D1099 972 points
General type (16 bits)
*1
D1100 to D7999 6900 points
EEPROM keep type
(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.
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)
*1
R0 to R23999 24000 points
Section 4.10
Extension file register
(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 4.12Input 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.
*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.
*2. For applicable functions, refer to Chapter 37.
For handling of the latched area, refer to Section 2.6.
*3. Available in Ver. 1.10 or later.
Device name Description Reference