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FX Series Programmable Controllers Devices in Detail 4
4-33
4.12 Data Registers
Device Mnemonic:
D
Purpose:
A stora
g
e device capable of storin
g
numeric data or 16/32bit patterns
Alias:
Data (re
g
ister/ device/ word)
D (re
g
ister)
D
Word
Available forms
: General use re
g
isters - see pa
g
e 4-34
Batter
y
backed/latched re
g
isters - see pa
g
e 4-35
Special dia
g
nostic re
g
isters - see pa
g
e 4-35
File re
g
isters - see pa
g
e 4-36
RAM file re
g
isters - see pa
g
e 4-36
Externall
y
ad
j
usted re
g
isters - see pa
g
e 4-37
Devices numbered in:
Decimal, i.e. D0 to D9, D10 to D19
Further uses:
Can be used in the indirect settin
g
of counters and timers
Example device usage:
None
Available devices:
R
- These devices are allocated b
y
the user at the expense of available pro
g
ram steps.
On FX
2N(C)
these devices are a subset of the latched re
g
isters.
F
- These devices are also included under the count for dia
g
nostic re
g
isters.
M
- These devices are activated when special auxiliar
y
rela
y
M8074 is turned ON.
No pro
g
ram steps are occupied b
y
RAM file re
g
isters.
FX
0
FX
0N
FX
(CPU Ver. 2.3)
FX
(2C)
FX
2N(C)
General use
registers
30
(D0 - 29)
128
(D0 - 127)
200
(D0 - 199)
Latched
registers
2
(D30 - 31)
128
(D128 - 256)
312
(D200 - 512)
800
(D200 - 999)
7800
(D200 - 7999)
Diagnostic
registers
27
(D8000 - 8069)
39
(D8000 - 8255)
256
(D8000 - 8255)
File registers R
N/A
1500
(D1000 - 2499)
2000
(D1000 - 2999)
7000
(D1000 - 7999)
RAM file
registers M
N/A
2000
(D6000 - 7999)
N/A
Adjustable
registers F
1
(D8013)
2
(D8030 - 8031)
N/A