Part of the Omron CJ-Series PLCs series — see the full model table, lifecycle status and replacement parts.
Omron CJ1W-PNT21 — PROFINET IO Controller, CJ-Series
SKU: CJ1W-PNT21USD 445.00
Omron CJ1W-PNT21 PROFINET IO Controller (master) for CJ-series PLCs, one RJ45 port, mounts on the CPU or expansion rack.
1-Year Warranty
Full manufacturer warranty
Global Shipping
Worldwide delivery available
Genuine Omron
100% authentic product
Ready to Ship
Usually ships within 24h
In Stock
This item is available for immediate shipment from our warehouse.
Contact for pricing, bulk discounts, and shipping
Product Overview
The Omron CJ1W-PNT21 is a PROFINET IO Controller (master) unit for the CJ-series PLCs, manufactured by Omron Corporation. Hengyixin Automation stocks this controller in Xiamen and ships within 3-5 business days to most Asian, European, and North American ports.
It sits on the CJ I/O Bus as a CPU Bus Unit and exposes one PROFINET port on an RJ45 socket at 100 Mbps. The unit polls PROFINET IO devices and exchanges their data with the CJ CPU over the backplane. Mount it on the CPU rack or an expansion rack; up to 16 CPU Bus Units per PLC, so several CJ1W-PNT21 units can run side by side for redundancy.
Compatible CPUs are CJ1M, CJ1H, CJ2H and CJ2M. Earlier CJ1 CPUs without I/O Bus expansion do not support it. For the same slot on EtherNet/IP, pick the CJ1W-EIP21. For PROFINET plus CompoNet master on one module, pick the CJ1W-PRM21. Setup runs in CX-Configurator FDT or Sysmac Studio.
Key Features
- PROFINET IO Controller (master) unit for CJ1 / CJ2 PLCs on the CJ I/O Bus
- One RJ45 port at 100 Mbps, mounts on CPU rack or expansion rack
- Up to 16 CPU Bus Units per PLC, so multiple PNT21 units can co-exist
- Works with CJ1M, CJ1H, CJ2H and CJ2M CPUs; not for CJ1G or CJ1 CPUs
- SKU: CJ1W-PNT21
- Series: Omron CJ-series PROFINET unit
Best-Fit Applications
- PROFINET master on a CJ2M-CPU33 line, polling 12 remote IO slices on a conveyor at 100 Mbps with one RJ45 drop per slave
- Replacing a legacy CompoNet master on a CJ1M-CPU21 retrofit where the field devices are now PROFINET and the cabinet has PROFINET cable run
- Spare for a water utility that standardised on CJ1W-PNT21 across all CJ2H-CPU64-EIP cells, one per CPU rack as a hot spare
Buying Checklist
- Pick the CJ1W-PNT21 for a PROFINET IO Controller (master) on a CJ1 / CJ2 CPU.
- Pick the CJ1W-PRM21 instead when you need PROFINET plus CompoNet master on one module.
- Pick the CJ1W-EIP21 instead when the field bus is EtherNet/IP rather than PROFINET.
Technical Specifications
| Manufacturer | Omron Corporation (Japan) |
|---|---|
| Series | Omron CJ-series PROFINET unit |
| Model / SKU | CJ1W-PNT21 |
| Function | PROFINET IO Controller (master) |
| Bus / Unit Class | CJ I/O Bus, CPU Bus Unit |
| Communication Port | 1 x RJ45, 100 Mbps PROFINET |
| Compatible CPUs | CJ1M, CJ1H, CJ2H, CJ2M |
| Max Units per PLC | Up to 16 CPU Bus Units |
| Mounting | CPU rack or expansion rack |
| Dimensions (W x H x D) | 31 × 90 × 65 mm |
| Weight | 100 g |
| Configuration Tool | CX-Configurator FDT or Sysmac Studio |
Manufacturer documentation
Omron's own product page, where the manufacturer's current specification and lifecycle information are published. We are an independent distributor and cannot mirror those documents; the link goes to Omron's site.
FAQ for CJ1W-PNT21
What is the Omron CJ1W-PNT21 used for?
It makes a CJ-series CPU act as the PROFINET IO Controller (master) on a PROFINET network. It exchanges cyclic and acyclic data with PROFINET IO devices and serves that data to the CJ CPU through the CJ I/O Bus.
Does the CJ1W-PNT21 work with the CJ2M-CPU11?
Yes. It works with the CJ1M, CJ1H, CJ2H and CJ2M families. Earlier CJ1 CPUs without the I/O Bus expansion capability do not support it.
CJ1W-PNT21 vs CJ1W-EIP21 -- which do I need?
The PNT21 is the PROFINET IO Controller for PROFINET IO device networks. The EIP21 is the EtherNet/IP unit for EtherNet/IP device networks. Pick by the field-bus protocol the slaves are running.
How is the CJ1W-PNT21 set up?
In CX-Configurator FDT (for CJ1 / CJ2 with CX-One) or in Sysmac Studio (for NJ controllers). You import the GSDML file for each PROFINET IO device, add the slaves to the network view, and download the configuration to the unit.
Similar Products
Explore related Omron models often viewed alongside this product.
