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1 Data List
NX-series Data Reference Manual (W525)
1-4 Digital I/O Units
1
1-4-1 Digital Input Units
Items in the Summary Specifications
Data List
AC Input Units (Screwless Clamping Terminal Block, 12 mm Width)
Item Description
Number of points The number of input points provided by the Unit.
Internal I/O common This is the polarity that the Unit uses to connect to input devices.
There are models with NPN and PNP connections.
Rated input voltage The rated input voltage of the Unit.
I/O refreshing method The I/O refreshing methods that are used by the Unit.
Free-Run refreshing, synchronous I/O refreshing and input refreshing with input changed time are
available.
In the following table, the following abbreviations are used.
Free
:
Free-Run refreshing
Sync
: Switching
synchronous I/O refreshing
and
Free-Run refreshing
Changed time: Input refreshing with input changed time
ON/OFF response
time
The delay time for which the status change of the input terminals reaches the internal circuit of the
Unit.
The input filter time is not included.
It is described according to the ON/OFF sequence.
Model
Unit configuration data Summary specifications
NX Unit
power
con-
sump-
tion [W]
Current
consump-
tion from
I/O power
supply
[mA]
Input
cur-
rent
[mA]
I/O
power
sup-
ply
metho
d
Wei
ght
[g]
Width
[mm]
I/O
data
size
[byte]
Num-
ber of
I/O
entry
map-
pings
Num
ber
of
poin
ts
Inter-
nal I/O
com-
mon
Rated
input
volt-
age
I/O
refres
hing
metho
d
ON/OFF
respon
se time
CPU
Cou
pler
NX-IA3117
0.80 0.50
No con-
sumption
9 (200
VAC/50
Hz)
11 (200
VAC/60
Hz)
Exter-
nal
60 12 4/0
bits
1/0 4
point
s
No
polar-
ity
200 to
240
VAC
Free 10/40
ms max.
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