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NXR-[]D166C-IL2

Environment-resistive Remote Terminal NXR-series IO-Link I/O Hub

NXR-[]D166C-IL2

Reduced wiring system with IO-Link

Item list of NXR-[]D166C-IL2

Related Contents

last update: October 27, 2025

General Specifications

Item Specification
Degree of protection IP67
Operating
environment		 Ambient operating temperature -10 to 55°C
Ambient operating humidity 25% to 85% (with no condensation)
Ambient operating atmosphere Must be free from corrosive gases.
Storage temperature -25 to 65°C
Storage humidity 25% to 85% (with no condensation)
Altitude 2,000 m max.
Pollution degree 3 or less: Conforms to IEC 61010-2-201.
Noise immunity 2 kV on power supply line (Conforms to IEC 61000-4-4.)
Overvoltage category Category II: Conforms to IEC 61010-2-201
EMC immunity level Zone B
Vibration resistance 10 to 60 Hz with amplitude of 0.35 mm, 60 to 150 Hz and 50 m/s2
for 80 minutes each in X, Y, and Z directions.
Shock resistance 150 m/s2, 3 times each in 6 directions along X, Y, and Z axes
Applicable standards *1 cULus: Listed (UL61010-2-201)
EU: EN 61131-2, RCM
KC: KC Registration
IO-Link conformance

*1. Ask your OMRON representative for the most recent applicable standards for each model.

Individual Specifications

Model Specification
NXR-ID166C-IL2 NXR-CD166C-IL2
Device type Digital Input Hub Digital I/O Variable Hub
Unit/input power supply voltage 24 VDC (20.4 to 26.4 VDC)
Current consumption from Unit/input power
supply		 40 mA max.
Maximum current of Unit/input power supply 0.84 A
Output power supply voltage --- 24 VDC (20.4 to 26.4 VDC)
Current consumption from output power supply --- 40 mA max.
Maximum current of output power supply --- 2.0 A
Dimensions 174 × 24.2 × 62 mm (W × H × D)
(The height is 37.8 mm when the connectors are included.)
Isolation method No isolation
Weight 280 g
Circuit layout 3795_sp_2_1
IO-Link
specifications		 Communications protocol IO-Link protocol
Frame type 2.6 (Model: Digital Input Hub) 2.2 (Model number: Digital I/O
Variable Hub)
Baud rate COM2: 38.4 kbps
Start-stop synchronization UART
1:1
Communications distance 20 m max.
Data in order Big endian
Synchronization method ISDU (Indexed Service Data Unit)
Minimum cycle time 10 ms
Process input data size 20 bytes
Process output data size --- 2 bytes
M-sequence TYPE_2_V TYPE_2_V
Vendor ID1 02 hex 02 hex
Vendor ID2 64 hex 64 hex
Vendor name OMRON Corporation OMRON Corporation
Vendor text OMRON Corporation OMRON Corporation
Device ID1 05 hex 05 hex
Device ID2 00 hex 00 hex
Device ID3 01 hex 02 hex
Product name NXR-ID166C-IL2 NXR-CD166C-IL2
Product ID NXR-ID166C-IL2 NXR-CD166C-IL2
Product text IO-Link I/O Hub IO-Link I/O Hub
Mounting
specifications		 Mounting method Mounting with M5 screws
Mounting strength 100 N
Connector strength 30 N
Applicable to all connectors
Connector type • IO-Link connector: M12 (A-coding, male)
• I/O connector: M12 (A-coding, female) × 8
Screw tightening torque • IO-Link connector and I/O connector (M12 screw): 0.5 to 0.6 N·m
• Hub mounting (M5 screw): 1.47 to 1.96 N·m
Installation orientation and
restrictions		 • Installation orientation: 6 possible orientations
• Restrictions: No restrictions
Digital input Number of inputs 16 0 to 16 (variable)
Internal I/O common PNP
ON voltage/ON current 15 VDC min., 3 mA min. (between each input terminal and G)
OFF voltage/OFF current 5 VDC max., 1 mA max. (between each input terminal and G)
Input current 4.0 mA (for 24 VDC)
Sensor power supply current 100 mA max./port
ON response time 0.1 ms max.
OFF response time 0.2 ms max.
Input filter 0 ms, 0.5 ms, 1 ms (default), 2 ms, 4 ms, 8 ms, 16 ms, 32 ms,
64 ms, 128 ms
Short-circuit protection Provided *1
Short-circuit detection Provided *1
Line disconnection detection Provided *2
Digital output Number of outputs --- 0 to 16 (variable)
Maximum load current --- 500 mA/point
OFF leakage current --- 0.3 mA max.
Internal I/O common --- PNP
ON response time --- 0.5 ms max.
OFF response time --- 1.5 ms max.
Residual voltage --- 1.2 V max. (0.5 ADC, between each
output terminal and G)
Short-circuit protection --- Provided *3
Short-circuit detection --- Provided *3
Line disconnection detection --- Provided *4

*1. Detects a short-circuit that occurred between the V and G power supply terminals of the I/O connectors to protect the
      IO-Link I/O Hubs.
*2. Detects a disconnection of the V power supply terminal of the I/O connectors.
*3. Detects a short-circuit that occurred between pin 4 and the G power supply terminal and between pin 2 and the G
      power supply terminal to protect the IO-Link I/O Hubs.
*4. Detects a disconnection of pin 4 and pin 2 of the I/O connectors.

Version Information

The following table shows the relationship between the unit versions of the IO-Link I/O Hub and NXR-series EtherNet/IP IO-Link Master Unit, and the corresponding support software versions. With the combinations of the versions that are the same as or later (higher) than the versions in the table below, you can use all the functions that are supported by each unit version of the IO-Link I/O Hub.

IO-Link I/O Hub NXR-series EtherNet/IP IO-Link Master Unit Support software
Model Unit version NXR-ILM08C-EIT CX-ConfiguratorFDT
NXR-ID166C-IL2 Ver.1.0 Ver.1.0 Ver.2.54
NXR-CD166C-IL2 Ver.1.0 Ver.1.0 Ver.2.54

The following table shows the relationship between the unit versions of the IO-Link I/O Hub and NXR-series EtherCAT IO-Link Master Unit, and the corresponding support software versions. With the combinations of the versions that are the same as or later (higher) than the versions in the table below, you can use all functions that are supported by each unit version of the IO-Link I/O Hub.

IO-Link I/O Hub NXR-series EtherCAT IO-Link Master Unit Support software
Model Unit version NXR-ILM08C-ECT CX-ConfiguratorFDT
NXR-ID166C-IL2 Ver.1.0 Ver.1.0 Ver. 3.01, or Ver. 2.59 with
Common Module as of January
2024 or later applied
NXR-CD166C-IL2 Ver.1.0 Ver.1.0 Ver. 3.01, or Ver. 2.59 with
Common Module as of January
2024 or later applied

last update: October 27, 2025

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