SKU: CJ1W-PNT21

Omron CJ1W-PNT21 CJ Series CompoNet Communication Unit

Omron CJ1W-PNT21 is a CompoNet communication unit for CJ series PLCs, enabling CompoNet network connectivity for distributed I/O.

USD 445.00 per unit, volume discounts available

  • In stock, ships in 24h
  • 100% genuine Omron
  • 1-year manufacturer warranty
  • Worldwide delivery

Key Features

  • CompoNet slave functionality
  • High-speed communication up to 4 Mbps
  • Digital and analog I/O support
  • Flexible I/O mapping
  • LED status indicators
  • Supports free topology wiring
  • Easy configuration
  • Compact CJ1 design
01 / Overview

Omron CJ1W-PNT21 CompoNet Communication Module

The Omron CJ1W-PNT21 is a CompoNet communication unit for CJ1 series programmable logic controllers, providing seamless connectivity to CompoNet industrial field networks. CompoNet is Omron high-speed, flexible network technology designed for distributed I/O and device-level communication in industrial automation systems. The CJ1W-PNT21 operates as a CompoNet slave device, allowing the CJ1 PLC to exchange data with remote I/O modules, sensors, and other CompoNet-compatible devices on the network. The module supports both digital and analog I/O data exchange over the CompoNet network, enabling efficient distributed control architectures. With high-speed communication up to 4 Mbps, the CJ1W-PNT21 provides fast data exchange suitable for time-critical applications. The module supports multiple I/O words for flexible data mapping between the network and PLC memory. LED status indicators provide at-a-glance monitoring of network status and communication activity. Easy configuration through CX-Programmer allows quick setup of network parameters and I/O mapping. The CJ1W-PNT21 supports both round and free topology network wiring, providing installation flexibility. Applications include distributed I/O systems, conveyor control, packaging machinery, material handling systems, and any application requiring network-connected I/O with Omron devices.

Typical Applications

  • Distributed I/O systems
  • Conveyor control networks
  • Packaging machinery integration
  • Material handling systems
  • Process automation
  • Machine building
  • Factory floor networks
  • Remote I/O expansion

Buying Checklist

  • High-speed CompoNet connectivity
  • Flexible network topology
  • Digital and analog support
  • Easy I/O mapping
  • LED diagnostics
  • Standard CJ1 compatibility
  • Proven Omron network technology
  • Simplified wiring
02 / Specifications

Technical Specifications

Technical specifications for Omron CJ1W-PNT21 CJ Series CompoNet Communication Unit
ModelCJ1W-PNT21
SeriesCJ1W
TypeCompoNet Communication Unit
ProtocolCompoNet
Baud Rate125/250/500 kbps
Max Nodes64 nodes
Max Distance500m (at 125kbps)
Connection5-pin terminal block
Current Consumption200mA at 5VDC
Compatible CPUsCJ1M, CJ1G, CJ1H, CJ2M, CJ2H
Operating Temperature0 to +55°C
MountingCJ series backplane
03 / FAQ

Frequently Asked Questions

What's CompoNet used for?

CompoNet is device-level network for connecting I/O, drives, sensors to PLC. Common in packaging, material handling industries.

How many nodes can this unit support?

Up to 64 nodes on CompoNet network. Includes all devices: remote I/O, drives, sensors. Each node requires unique MAC ID (0-63).

What's the maximum cable length?

Depends on baud rate: 500m at 125kbps, 250m at 250kbps, 100m at 500kbps. Use thick cable for trunk, thin cable for drops.

Do I need to configure this unit?

Yes, configure in CX-Programmer: set baud rate, MAC ID, I/O allocation. Configuration downloads to CPU. Unit auto-recognizes connected CompoNet devices.

Need CJ1W-PNT21 pricing or lead time?

Email sales@hyx-automation.com or send your inquiry via the form. We respond same business day.

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