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Omron NJ101-9000 — front face of the Sysmac NJ1 CPU showing the four status LEDs (PWR / RUN / ERR / PRPHL) at the top, the rotary dipswitch cover for node-address setting, the 7-segment 5-digit LED display, the USB programming port under the sliding cover, the SD memory card slot and the NJ101-9000 type label

Omron NJ101-9000 — NJ1 CPU, 3 MB, EtherCAT

SKU: NJ101-9000

USD 680.00

Omron NJ101-9000 Sysmac NJ1 CPU, 3 MB program memory, built-in EtherCAT and EtherNet/IP, no motion axes. In stock, China shipping.

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Product Overview

The Omron NJ101-9000 is the Sysmac NJ1-series entry-level machine automation controller CPU, manufactured by Omron Corporation. Hengyixin Automation stocks this controller in Xiamen and ships within 3-5 business days to most Asian, European, and North American ports.

It runs sequence control programs out of 3 MB of program memory, with 0.5 MB of retained variable memory and 2 MB of non-retained variable memory. Up to 2,560 local I/O points (8,960 with NX-series remote I/O) and 40 Units total per CPU across 3 Expansion Racks. Primary task cycle time is 1 ms.

Three built-in ports handle EtherCAT master (up to 64 slave nodes), EtherNet/IP (10 / 100 BASE-TX), and USB programming. An SD memory card slot supports data logging and project backup. Programming is in Sysmac Studio with IEC 61131-3 languages. The 2-axis motion variant is the NJ101-1000. The 16-axis high-end CPU is the NJ501-1300.

Key Features

  • Sysmac NJ1 CPU with 3 MB program memory, 0.5 MB retained + 2 MB non-retained variable memory, 1 ms primary task
  • Built-in EtherCAT master for up to 64 slave nodes, EtherNet/IP, USB programming, SD card slot
  • 2,560 local I/O points (8,960 with NX-series remote I/O), 40 Units total per CPU, 3 Expansion Racks
  • Sequence control only, no motion axes; ladder, structured text, function block programming in Sysmac Studio
  • SKU: NJ101-9000
  • Series: Sysmac NJ1-series machine automation controller (entry-level sequence CPU)
  • I/O: 2 I/O

Best-Fit Applications

  • Line control on a conveyor cell where the NJ101-9000 sequence-controls 16 NX-OD5256 outputs and 32 NX-ID4442 inputs without motion
  • Data logging cell where the NJ101-9000 polls 4 E6C2-CWZ6C 1024P-R 2M encoders over EtherCAT and writes counts to the SD card
  • Spare replacement on a Sysmac NJ1 install where the original NJ101-1000 is swapped for the motion-less NJ101-9000 to free EtherCAT for I/O

Buying Checklist

  • Pick the NJ101-9000 for a Sysmac NJ1 entry-level sequence-control CPU with 3 MB program memory and built-in EtherCAT + EtherNet/IP.
  • Pick the NJ101-1000 instead when the cell needs 2 axes of point-to-point motion control in the same NJ1 entry-level form factor.
  • Pick the NJ501-1300 instead when the application needs 16 EtherCAT axes and 20 MB of program memory on the NJ5 high-end platform.

Technical Specifications

Manufacturer Omron Corporation (Japan)
Series Sysmac NJ1-series machine automation controller (entry-level sequence CPU)
Model / SKU NJ101-9000
Program Memory 3 MB program memory, 0.5 MB retained variables (battery-backed), 2 MB non-retained variables
Task Cycle 1 ms primary task cycle time
I/O Capacity 2,560 local I/O points, 8,960 with NX-series remote I/O, 40 Units per CPU, 3 Expansion Racks
Motion / CNC / DB 0 motion axes, no CNC, no DB connection, no OPC-UA (sequence control only)
Built-in Ports EtherCAT master, EtherNet/IP (10 / 100 BASE-TX), USB programming, SD memory card slot
Programming Software Sysmac Studio with IEC 61131-3 languages (ladder, structured text, function block)
Current Draw 5 VDC at 1.90 A, 24 VDC at 0.22 A from the NJ-PA3001 (100-240 VAC) or NJ-PD3001 (24 VDC) PSU
Dimensions / Weight 90 (H) x 65 (D) x 80 (W) mm on the CPU Rack, approximately 280 g
Environment / Battery 0 to 55 C operating, 10 to 90 percent humidity (no condensation); battery CJ1W-BAT01, 5-year life at 25 C

Manufacturer documentation

Omron's own product page, where the manufacturer's current specification and lifecycle information are published. We are an independent distributor and cannot mirror those documents; the link goes to Omron's site.

FAQ for NJ101-9000

What is the Omron NJ101-9000 used for?
It is the Sysmac NJ1-series entry-level machine automation controller CPU. It runs sequence-control programs out of 3 MB of memory and talks to EtherCAT slaves and EtherNet/IP devices from the built-in ports. Typical uses are conveyor line control, data-logging cells, and any mid-size machine where motion axes are not needed.
NJ101-9000 vs NJ101-1000 - what is the difference?
Both belong to the Sysmac NJ1 entry-level family with 3 MB program memory, built-in EtherCAT and EtherNet/IP, and the same primary task cycle time. The NJ101-9000 has 0 motion axes; the NJ101-1000 has 2 axes of point-to-point motion control. Pick the -9000 for sequence-only cells; pick the -1000 when the machine needs 2 motion axes on the same entry-level CPU.
Can the NJ101-9000 connect to a CJ1W expansion rack?
Yes. The NJ101-9000 supports up to three CJ-series Expansion Racks via a CJ1W-IC101 I/O Control Unit on the CPU Rack and a CJ1W-II101 I/O Interface Unit on each Expansion Rack. The connecting cable is the CS1W-CN[]3 series.
What software programs the NJ101-9000?
Sysmac Studio. The NJ101-9000 supports IEC 61131-3 languages (ladder, structured text, function block) in Sysmac Studio version 1.02 or higher. CX-One and CX-Programmer do not program the Sysmac NJ/NX controllers; they program the legacy CS/CJ/CP families.

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