USD 1,718.31
Built-in EtherNet/IP CPU with 2,560 I/O points, 20K-step program capacity, USB programming, and 90 mm CJ-series rack form factor.
CJ2M-CPU33 is a CJ-series CPU unit with built-in EtherNet/IP, positioned for compact industrial control systems requiring up to 2,560 I/O points via CPU and expansion racks. Omron documents 20K steps of program capacity, 64Kwords DM area, and support for USB peripheral connectivity plus a built-in serial port. The hardware manual indicates the CJ2M CPU family form factor is 90 mm wide and the CJ2M-CPU33 has a 190 g max weight including end cover and battery, excluding serial option board. The product page identifies it as a standard-stock PLC CPU unit and notes planned order discontinuation in March 2028.
| Parameter | Value |
|---|---|
| I/O capacity | 2,560 points |
| Program capacity | 20K steps |
| DM area capacity | 64K words (DM: 32K words, EM: 32K words × 1 bank) |
| Built-in communications | EtherNet/IP |
| Peripheral port | USB |
| Built-in serial port | Yes |
| Maximum expansion | 40 units, 3 expansion racks |
| Basic instruction speed | 40 ns |
| System overhead time | 270 µs |
| Connector type | RJ45 |
| Weight | 190 g max. including end cover and battery; serial option board not included |
| Width | 90 mm |
| Model family | CJ2M CPU Unit |
Controls a small-to-mid machine line where 2,560-point I/O scalability and 20K-step logic are enough for sequencing, interlocks, alarms, and HMI communications.
Replaces fragmented relay logic with a single rack PLC that can manage a large I/O count and Ethernet-connected devices.
Runs a packaging cell that needs fast discrete control plus Ethernet/IP integration to line-level devices, barcode/HMI stations, and upstream/downstream equipment.
Provides deterministic controller networking without adding a separate communications gateway.
Fits a modular skid or utility panel where rack-based expansion and a compact 90 mm-wide CPU are needed to keep panel depth and layout manageable.
Delivers expandable PLC control in a compact footprint with low mass and rack compatibility.
