Omron CJ1M-CPU13

Technical Dossier

Product Details And Specifications

OMRON CJ1M Series Technical Notes

The Evolution of CJ1M Architecture

The CJ1M series was introduced as a successor to OMRON's CPM2A and CQM1H platforms, inheriting the CJ-series high-speed bus (cycle time as low as 0.04 μs/step) while reducing the physical footprint. Early CJ1M units (circa 2001–2005) shipped with CPU11 and CPU12 variants offering 5K–10K program steps and basic built-in I/O. The mid-generation refresh introduced the CPU21, CPU22, and CPU23 variants with expanded memory (up to 20K steps), integrated Ethernet option boards, and enhanced pulse output for motion-adjacent applications.

The CJ1M-CPU13 — the subject of this listing — represents the upper tier of the CJ1M CPU range, offering 20K program steps, 32K words DM area, built-in RS-232C and RS-422A/485 ports, and support for up to 10 expansion units. Compatibility with CJ1-series I/O units is maintained across all CJ1M CPU variants, enabling mixed-generation rack configurations. As of 2024, OMRON has transitioned primary development focus to the NX/NJ series (Sysmac platform), positioning CJ1M as a mature/legacy product line. Long-term spare parts availability is confirmed through OMRON's global distribution network and authorized third-party suppliers.

CJ1M Full Catalog & Functionalities (SKU List)

CPU Units

• CJ1M-CPU11: Compact CPU, 5K steps, 10K words DM, built-in RS-232C ×1
• CJ1M-CPU12: Mid-range CPU, 10K steps, 32K words DM, RS-232C ×1
• CJ1M-CPU13: High-end CPU, 20K steps, 32K words DM, RS-232C + RS-422A/485
• CJ1M-CPU21: CPU with built-in I/O (10 DI / 6 DO), 5K steps, RS-232C ×1
• CJ1M-CPU22: CPU with built-in I/O (10 DI / 6 DO), 10K steps, RS-232C ×1
• CJ1M-CPU23: CPU with built-in I/O (10 DI / 6 DO), 20K steps, dual serial ports

Digital Input (DI) Modules

• CJ1W-ID211: 16-point DC 24V digital input, screw terminal, standard density
• CJ1W-ID231: 32-point DC 24V digital input, MIL connector, high-density
• CJ1W-ID261: 64-point DC 24V digital input, high-density MIL connector

Digital Output (DO) Modules

• CJ1W-OD211: 16-point transistor (NPN) output, 0.5A/point, screw terminal
• CJ1W-OD231: 32-point transistor (NPN) output, MIL connector
• CJ1W-OD261: 64-point transistor (NPN) output, high-density MIL connector
• CJ1W-OC211: 16-point relay output, 2A/point, screw terminal

Analog I/O Modules

• CJ1W-AD081-V1: 8-channel analog input, 1–5V / 4–20mA, 12-bit resolution
• CJ1W-DA041: 4-channel analog output, 1–5V / 4–20mA, 12-bit resolution
• CJ1W-DA08V: 8-channel analog voltage output, ±10V / 0–10V, 12-bit

Communications & Network Adapters

• CJ1W-EIP21: EtherNet/IP communications unit, 100BASE-TX, tag data link support
• CJ1W-PRM21: PROFIBUS-DP master unit, up to 125 slave nodes
• CJ1W-DRM21: DeviceNet master/slave unit, 63-node network support
• CJ1W-SCU21-V1: Serial communications unit, 2× RS-232C ports, protocol macro

Power Supply Units

• CJ1W-PA202: AC power supply, 100–240VAC input, 5VDC/2A + 24VDC/0.8A output
• CJ1W-PD022: DC power supply, 24VDC input, 5VDC/2A output

Quality Control for the CJ1M Range

Each CJ1M unit processed by DriveKNMS undergoes a structured inspection and functional verification protocol prior to dispatch. The procedure addresses the specific failure modes documented for CJ1M hardware: backplane bus connector wear, capacitor degradation on power supply boards, and firmware version mismatches between CPU and expansion units.