Omron NJ101-9000 CPU Unit

USD 1,380.59

3 MB CPU unit with EtherCAT/EtherNet/IP, 0 axes, 2,560-point I/O, 1 ms cycle, 90 mm cube footprint.

SKU Omron-NJ101-9000 Category
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Omron NJ101-9000 CPU Unit

Model Identifier NJ101-9000
Official Part Number NJ101-9000
GTIN Standard NA

Technical Overview

NJ-series CPU unit for simple machine automation with built-in EtherCAT Master and EtherNet/IP. The NJ101-9000 is a 3 MB program-memory controller with 0 motion axes, 2,560-point local I/O capacity, 40 total units on the system, and 1 ms primary task cycle time. Omron’s published general specifications list a 90 mm × 90 mm × 90 mm enclosure size, 550 g weight including the end cover, and 5 VDC 1.90 A current consumption including SD memory card and end cover.

Key Features

  • 3 MB program memory
  • Built-in EtherCAT Master
  • Built-in EtherNet/IP
  • 0 motion axes
  • 2,560 local I/O points
  • 40 units maximum on the system
  • 1 ms primary task cycle time
  • USB and Ethernet programming connection
  • DIN rail mounting
  • Sequence control for simple machines

Built-in EtherCAT Master and EtherNet/IP with 3 MB program memory for compact machine control.

Technical Specification Matrix

ParameterValue
Program capacity3 MB
I/O capacity2,560 points local (8,960 with NX I/O)
Maximum number of units10 per CPU or expansion rack; 40 total per CPU
Total axes0
Motion control networkEtherCAT
Communication portsEtherCAT and EtherNet/IP built in
Programming connectionUSB / Ethernet
MountingDIN Rail
Controller functionalitySequence control
Primary task cycle time1 ms
Variables memory0.5 MB retained, 2 MB not retained
EnclosureMounted in a panel
Grounding methodGround to less than 100 Ω
Dimensions (height × depth × width)90 mm × 90 mm × 90 mm
Weight550 g (including the end cover)
Current consumption5 VDC, 1.90 A (including SD Memory Card and End Cover)
Operating temperature0 to 55°C
Operating humidity10% to 90% (with no condensation)
Storage temperature-20 to 75°C (excluding battery)
Altitude2,000 m or less
Pollution degree2 or less
Noise immunity2 kV on power supply line
Overvoltage categoryCategory II
EMC immunity levelZone B
Vibration resistanceIEC 60068-2-6 compliant
Shock resistanceIEC 60068-2-27 compliant
Battery life5 years at 25°C
Battery modelCJ1W-BAT01
Applicable standardscULus, EU, UKCA, RCM, KC, NK, LR

Industrial Applications

1. Compact assembly-cell sequencing

Controls a small assembly cell that needs deterministic sequence logic, local I/O, and industrial Ethernet connectivity in a compact 90 mm cube controller.

Problem Solved

Replaces larger PLCs when only sequence control and moderate I/O count are required.

sequence control2,560-point I/OEtherNet/IPEtherCAT1 ms cycle time

2. Simple machine network gateway control

Coordinates a machine with both EtherCAT and EtherNet/IP devices, making it suitable for mixed-vendor field networks without adding a separate gateway controller.

Problem Solved

Eliminates extra protocol bridging hardware for compact automation panels.

EtherCAT MasterEtherNet/IPUSB programmingDIN rail40 units maximum

3. Panel-dense OEM machine control

Fits OEM machine panels where enclosure volume is limited but a full-featured controller with SD backup, 1 ms tasking, and 550 g hardware mass is needed.

Problem Solved

Provides deterministic control in tight control cabinets with limited space and thermal budget.

90 mm dimensions550 gSD memory card5 VDC current consumptionambient 0 to 55°C
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