BCNet-CJ is an economical Ethernet communication processor, which is designed to meet the increasing information requirements of factory equipment (equipment network monitoring and production management). It is used in Omron CJ1M/CJ2M/CS1/CG1/NX1P series PLC’s Ethernet data acquisition is very convenient for building a production management system.
BCNet-CJ adopts the plug-and-play design and does not occupy the PLC communication port, that is, while the programming software/host computer software monitors the PLC data through the Ethernet, the touch screen can communicate with the PLC through the multiplexing interface. BCNet-CJ supports the vast majority of SCADA software in the field of industrial control and supports OMRON FINS TCP/UDP Ethernet protocol and Modbus TCP two communication methods.
BCNet-CJ features:
- Plug and play, the module is directly plugged into DB9 of CJ1/CJ2/CS1/CG1/NX1P, no external power supply is required, and the expansion port can be connected to the touch screen at the same time.
- Through the WEB server or the configuration diagnostic tool BCDevice, the device can be parameterized and run diagnostics.
- Automatic identification of PLC model, automatic matching of PLC and HMI serial parameters, without additional configuration.
- Realize Ethernet communication with Omron programming software CX-Programmer.
- Support FINS/UDP, FINS/TCP Ethernet protocol communication, support PC software (MCGS, KepWare OPC server, etc.) access.
- Integrated ModbusTCP server, support FC1, FC2, FC3, FC5, FC15, FC6, FC16, Modbus data area is automatically mapped to PLC data area.
- Support BCNetTCP/IP transparent transmission protocol communication.
- By using FINS communication protocol or transparent transmission, high-level languages (such as VB, VC, C#, etc.) can be used to program, realize data communication with Omron PLC, and facilitate the development of production management systems.
- SCADA (upper configuration software) supporting the OPC channel communicates with PLC in OPC mode.
- It can realize CX-Progarmmer, FINS/TCP, FINS/UDP, BCNetTCP transparent transmission, and Modbus TCP connection modes at the same time. Support the connection of 10 host computers.
- Support firmware updates on the user side through Ethernet, one purchase, and permanent upgrade.
Module installation

Typical Application

| Product number | BCNet-CJ |
|---|---|
| Describe | Omron CJ Series PLC Ethernet Communication |
| Color | Metallic Black |
| 状态显示 | Pwr, Bus |
| Ethernet interface Interface Type Transmission rate Protocol support Number of TCP/UDP connections | IEEE 802.3 compatible, Link/Active indicator, line sequence adaptive, support Auto-MDIX RJ45 female socket 10/100Mbps FINS/TCP, FINS/UDP, ModbusTCP, BCNetTCP, etc. 10 |
| PLC interface Interface Type Transmission rate Protocol support | RS232 DSUB 9-pin male 9.6K, 19.2K, 38.4K, 57.6K, 115.2Kbps FINS |
| man-machine interface Interface Type | RS232 DSUB 9-pin female |
| Transmission rate Protocol support | 9.6K、19.2K、38.4K、57.6K、115.2Kbps FINS |
| programming software Configuration Software OPC software | CX-Programmer IFIX, INTOUCH, etc. KepWare OPC |
| Diagnostics and parameter setting | IE browser, default 192.168.1.178, BCDevice |
| Power supply Voltage type | The communication port can directly take power or external 24VDC 24VDC/100mA |
| Operating temperature | 0~60℃ |
| Working humidity | 90% non-condensing |
| Installation method | Plug and Play |
| Electromagnetic Compatibility | 2014/30/EU |
| RoSH production | yes |
| Anti-vibration | 4.5mm/30Hz/10Min |
| ESD | 6KV |
| Factory aging | The 60-degree aging box runs for 168 hours, and the power is turned on and off 500 million times |
| Communication stability | Continuous communication with PLC for 30 days, 130 million times of communication with 0 errors |
| Certification | CE Certification |
| Dimensions (LWH) | 65*30*17mm |
| Weight | 60g |