The Omron CJ1W-FLN22, also cataloged as the CJ1W-FLN22 Multivendor Controller Networks Module, operates as a dedicated hardware component for FL-net multivendor controller communication within SYSMAC CJ Series platforms.

Technical Identifier Matrix

• Base Hardware Model: CJ1W-FLN22
• Full Part Number: CJ1W-FLN22
• Product Type: Multivendor Controller Network Interface Module (FL-net Unit)
• Series Family: Omron SYSMAC CJ Series
• Unit Classification: CJ-series CPU Bus Unit
• Media Access Method: CSMA/CD
• Transmission Path Topology: Star

Hardware Specifications

Omron Backplane Bus Velocity & Real-Time Logic Execution

The CJ1W-FLN22 functions as a CJ-series CPU Bus Unit, exchanging cyclic data link areas and message frames directly across the CPU backplane bus. High-velocity backplane transfer cycles support deterministic data sharing across open FL-net Ethernet protocol networks connecting heterogeneous controllers. Firmware flash memory routines automatically map network memory areas into the CPU rack memory space upon system initialization without cycle time degradation.

Package Contents & Ordering Information

• 1x Omron CJ1W-FLN22 FL-net Communication Module
• 1x Hardware installation instruction sheet

Field Installation Guidelines

• Rack Mounting: Mount the unit directly onto a CJ-series CPU base rack or expansion rack slot, locking the top and bottom connectors to the adjacent unit.
• Network Wiring: Connect Category 5 or higher shielded twisted-pair (STP) Ethernet cabling to the RJ45 port using star network topologies via industrial Ethernet switches.
• Cable Shielding: Terminate STP cable braided shields continuously to metal RJ45 connector housings and connect the overall network infrastructure to earth ground.
• Chassis Grounding: Wire the functional earth (FE) terminal on the CPU power supply rack to panel ground using low-impedance copper wire with resistance under 100 Ohms.

Frequently Asked Questions

• Is hot-swapping supported for the CJ1W-FLN22 unit on a live CJ-series backplane?

  No. Disconnect power to the CPU rack assembly prior to removing or inserting the unit to prevent electrical damage to backplane logic circuits.

• What is the maximum current consumption of the CJ1W-FLN22 on the internal backplane bus?

  The unit draws up to 370 mA maximum at 5 VDC directly from the CJ-series internal backplane power rail.

• What media access method is utilized for network communications?

  The module utilizes the standard CSMA/CD media access method over 100Base-TX/10Base-T Ethernet topologies.

• What physical network topologies are supported by the CJ1W-FLN22 interface?

  The unit supports industrial Ethernet star network topologies utilizing central switches and shielded twisted-pair cabling.

• What shock resistance standards does the physical hardware conform to?

  The hardware conforms to JIS 0041 withstand standards, tested up to 147 m/s2 three times each along the X, Y, and Z axes.

• What atmospheric conditions are required for safe operation?

  Operating environments must be maintained between 10% and 90% non-condensing relative humidity and remain strictly free from corrosive gases.

• What grounding resistance threshold is required for the controller rack?

  The system functional earth grounding circuit must be bonded directly to panel ground with an electrical resistance under 100 Ohms.

• How is firmware retained inside the module?

  Firmware and network unit setups are stored in non-volatile flash memory, enabling retention across power cycles without battery support.