Omron NX-ID - Types of Digital Mixed I;O Units

8 Digital Mixed I/O Units
8 - 2
NX-series Digital I/O Unit User’s Manual (W521)
8-1 Types of Digital Mixed I/O Units
Digital Mixed I/O Units are parts of NX Units, and process both inputs and outputs of digital signals
(ON/OFF signals).
The Digital Mixed I/O Unit types are described below.
DC Input/Transistor Output Units (MIL Connector, 30 mm Width)
Model
Num-
ber of
points
Internal
I/O com-
mon
Maximum
value of
load cur-
rent
Rated volt-
age
I/O refresh-
ing method
ON/OFF
response
time
Refer-
ence
NX-MD6121-5
Out-
puts: 16
points
Inputs:
16
points
Outputs:
NPN
Inputs: For
both
NPN/PNP
0.5 A/point,
2 A/Unit
Outputs: 12
to 24 VDC
Inputs: 24
VDC
Switching
Synchro-
nous I/O
refreshing
and
Free-Run
refreshing
Outputs: 0.1
ms max./0.8
ms max.
Inputs: 20 μs
max./400 μs
max.
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NX-MD6256-5
Outputs:
PNP
Inputs: For
both
NPN/PNP
Outputs: 24
VDC
Inputs: 24
VDC
Outputs: 0.5
ms max./1.0
ms max.
Inputs: 20 μs
max./400 μs
max.
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DC Input/Transistor Output Units (Fujitsu Connector, 30 mm Width)
Model
Num-
ber of
points
Internal I/O
common
Maximum
value of
load cur-
rent
Rated volt-
age
I/O refresh-
ing method
ON/OFF
response
time
Refer-
ence
NX-MD6121-6
Out-
puts: 16
points
Inputs:
16
points
Outputs:
NPN
Inputs: For
both
NPN/PNP
0.5 A/point,
2 A/Unit
Outputs: 12
to 24 VDC
Inputs: 24
VDC
Switching
Synchro-
nous I/O
refreshing
and
Free-Run
refreshing
Outputs: 0.1
ms max./0.8
ms max.
Inputs: 20 μs
max./400 μs
max.
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