OMRON ControllerLink unit, CJ1W-CLK23

**Product Overview** **Controller Link is a FA network that allows for easy, high-speed transmission and reception of large amounts of data. Controller Link supports data links that enable data sharing between PLCs and computers.** **Information services that allow for real-time data transmission and reception.** **Systems can be flexibly configured. Repeater units can be used for T-junction wiring, long-distance wiring, and partial network conversion to fiber optic cables.** **Product Features** **High-capacity data links can be easily obtained without programming; simply configure the data link table.** • Each node of the unit can be configured to send/receive up to 20,000 * 1 words (62,000 words per board). • Each node can execute 4,000 * 2 words of data linking, provided data accuracy is ensured. • User-configured data link tables can be changed while data links are running. *3 • Errors throughout the system can be monitored using error diagnosis support software and various status flags.** *1. Units with version 1.2 or higher are supported. *2. Supports CJ1W-CLK23 and 3G8F7-CLK□3. *3. Supports CJ1W-CLK23, 3G8F7-CLK□3, and models ending in "-V1".

Technical Specifications

Project	Specifications
Model	CJ1W-CLK23 3G8F7-CLK23-E CJ1W-CLK21-V1*1 3G8F7-CLK21-EV1*1
Type	Wired (Twisted Pair Shielded Cable)
Communication Method	N: N-Token Bus
Encoding	Manchester Encoding
Modulation Method	Baseband Code
Synchronization Method	Flag Synchronization (Conforms to HDLC Standard)
Transmission Path Type	Multi-point (Bus Type)
Transmission Speed	The maximum transmission distance determined by the transmission speed is as follows: 2Mbits/s: 500m 1Mbits/s: 800m 500kbits/s: 1km
Maximum Transmission Distance	The maximum distance between nodes is not specified. (The entire system must reach the maximum transmission distance.)
Transmission Medium	Specified twisted-pair shielded cable 2 signal lines, 1 shielding line
Node Connection Method	PLC: Connect to the terminal Computer: Use dedicated (included) connector block
Maximum Number of Nodes	32 or 62 nodes * 2 * 3
CX-Integrator in CX-One, CX-Net in CX-Programmer*3, Programmer
Communication Functions	Data Link and Information Services
Data Link Word Count	Words Sent per Node: Less than 4,000 words (CJ1W-CLK@3), Less than 1,000 words (All other models) Words Sent/Received per Node: Less than 12,000 words (Version 1.2 and below) Less than 20,000 words (Version 1.2 or higher) Total number of words sent per network: Less than 62,000 words
Data Link Area	PLC: Binary Area (CIO Area, Working Area, Link Area * 4), Data Storage Area, Extended Data Storage Area (EM) Computer: FinsGateway Event Memory
Message Length	Less than 2,012 bytes (including header)
RAS Functionality	• Self-test function (hardware check at startup) • Echo test and broadcast test (using FINS command) • Monitor clock • Error log function
Error control	Manchester code check CRC check (CCITT X16+X12+X5+1)

*1. This model was discontinued in July 2012.
*2. Without repeater units, the maximum number of nodes in a wired network is 32. Repeater units are required when building a network with more than 32 nodes. If using repeater units, only the following Controller Link units or boards can be used, and the "Wired Network 62 Node Enable Bit" must be set for the DM parameter software switch on all nodes: CS1W-CLK23/CLK21-V1, CJ1W-CLK23/CLK21-V1, 3G8F7-CLK23-E/CLK21-EV1. *3. CX-Net or earlier versions of CX-Programmer version 3.1 can only be used in systems with no more than 32 nodes (node ​​addresses 1~32). If the system has a maximum of 62 nodes (node ​​addresses 1~62), use CX-Net or CX-Integrator in CX-Programmer version 3.2 or later. *4. CJ series PLCs do not have a link area, but LR000~LR199 are automatically converted to CIO 1000~CIO 1199.

Technical Specifications

Specification	Value
Brand	Omron
Category	Communication Module

Plain language sourcing guide for OMRON ControllerLink unit, CJ1W-CLK23

Start with the full model name. Check the brand name. Check the part number. Check the code on the old unit. These small checks help you avoid a wrong order.

Take one clear photo of the front label. Take one photo of the side label. If the part has a cable, plug, port, seal, coil, or screen, take a photo of that area too.

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If the exact model is no longer made, do not guess. Send the old model and the use case. LEHIY can compare close options and explain which choice is safer for repair work.

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Check the old part before removal. Look at the label. Look at the connector. Look at the mounting size. Look at the voltage or pressure rating if it is shown.

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