First TwinCAT PLC Project on a Beckhoff IPC
Build and verify a first TwinCAT PLC project on a Beckhoff IPC. This checklist covers target selection, EtherCAT discovery, I/O mapping, safe activation, restart tests, and commissioning records.
Manufacturer: Omron
Product No.: CJ1W-CLK23
Country of origin:Japan
Product Type: Controller Link Units
Payment: T/T, Western Union
Weight: 110g
Shipping port: Xiamen
Warranty: 12 months
Managing high-capacity peer-to-peer data transfers and message services across industrial networks, the Omron CJ1W-CLK23 serves as a dedicated Controller Link interface module designed for the Sysmac CJ PLC platform. By implementing a deterministic N:N token-bus method, this communication module enables seamless, real-time data exchange between CJ-series CPU units. It utilizes flag synchronization conforming to HDLC frames to guarantee highly reliable transmission over wired shielded twisted-pair cabling. Designed for flexible network scaling, it supports segmented architectures and multi-node configurations directly from the PLC backplane.
| Parameter | Specification |
|---|---|
| Manufacturer | Omron |
| Model / SKU | CJ1W-CLK23 |
| Applicable PLCs | All CJ-series CPU Units |
| Communication Medium | Wired shielded twisted-pair (STP) cable |
| Communication Access Method | N:N token-bus method |
| Data Synchronization Type | Flag synchronization (conforms to HDLC frames) |
| Network Topology | Multidrop method (bus type) |
| Node Capacity | 32 or 62 nodes (determined by network parameters) |
| Max Units per CPU | 8 |
| Internal Current Consumption | 0.35 A at 5 VDC from PLC bus |
| Weight | 0.11 kg |
| Shipping Weight (Calculated) | 1.15 kg |
The CJ1W-CLK23 is directly compatible with standard Sysmac CJ-series systems, including CJ1G, CJ1H, and CJ2M controllers. It serves as a direct upgrade to older-generation Controller Link units, providing improved message buffer handshakes and diagnostic routing efficiency. Always ensure your CPU unit's firmware and CX-Programmer software are updated to support the full routing table configurations enabled by this unit.
A common issue in Controller Link networks is duplicate node setting. The node address is set via rotary switches on the front of the unit; duplicate node addresses will prevent the unit from joining the token ring. Furthermore, since the module draws 0.35 A from the backplane 5 VDC supply, power budget calculations must be verified prior to installation, especially when mounting multiple communication modules on a single rack.
To ensure stable, noise-tolerant communication:
Configure the Unit Number and Node Address using the rotary switches on the front panel prior to physically mounting the module.
Align the upper and lower hooks of the CJ1W-CLK23 with the adjacent module or CPU rack connector, pushing until the module locks securely into position.
Secure the module lock levers at both the top and bottom of the rack assembly.
Connect the wired Controller Link network cable to the terminal block, ensuring correct terminal polarity and that the shielding layout is properly terminated.
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Returns & Warranty
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| Country of origin |
Japan
|