72
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
4 Devices in Detail
4.1 Device Number List
High speed counter
1-phase 1-counting input
Bi-directional (32 bits)
C235 to C245
8 points maximum can be used among C235 to C255
[latched (battery backed) type].
The setting can be changed between the latched (battery
backed) type and the non-latch type using parameters.
−
2,147,483,648 to 2,147,483,647 counts
Hardware counter
*1
1 phase: 100 kHz
×
6 points, 10 kHz
×
2 points
2 phases: 50 kHz (1 edge count),
50 kHz (4 edge count)
Software counter
1 phase: 40 kHz
2 phases: 40 kHz (1 edge count),
10 kHz (4 edge count)
Section 4.7
1-phase 2-counting input
Bi-directional (32 bits)
C246 to C250
2-phase 2-counting input
Bi-directional (32 bits)
C251 to C255
Data register (32 bits when used in pair form)
General type (16 bits)
[variable]
D0 to D199
200 points
The setting can be changed between the
latched (battery backed) type and the non-
latched type using parameters.
Section 4.8
latched (battery backed)
type (16 bits)
[variable]
D200 to D511
312 points
latched (battery backed)
type (16 bits)
[fixed] <file register>
D512 to D7999
<D1000 to
D7999>
7488 points
<7000
points>
Among the 7488 fixed latched (battery
backed) type data registers, D1000 and later
can be set as file registers in units of 500
points.
Special type (16 bits)
*2
D8000 to D8511
512 points
Chapter 36
Index type (16 bits)
V0 to V7, Z0 to Z7 16 points
Section 4.10
Extension register/Extension file register
Extension register
(16 bits)
R0 to R32767
32768
points
latched (battery backed)
Section 4.9
Extension file register
(16 bits)
ER0 to ER32767
32768
points
Available only while a memory cassette is
mounted
Pointer
For jump and branch call
P0 to P4095
4096 points
For CJ and CALL instructions
Section 4.11
Input interrupt
Input delay interrupt
I0
to I5
6 points
Timer interrupt
I6
to I8
3 points
Counter interrupt
I010 to I060
6 points
For HSCS instruction
Nesting
For master control
N0 to N7
8 points
For MC instruction
Constant
Decimal (K)
16 bits
−
32768 to +32767
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)
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.
Character string (" ")
Character string
Specify characters by quotation marks.
In a constant of an instruction, up to 32 half-width
characters are available.
*1.
When the FX
3U
-4HSX-ADP is connected to an FX
3U
PLC, the maximum input frequency is set as
follows:
1 phase: 200 kHz
2 phases: 100 kHz (1 edge count). 100 kHz (4 edge count)
*2.
For supported functions, refer to Chapter 36.
For handling of the latched (battery backed) area, refer to Section 2.6.
Device name
Description
Reference