CC-PAOH01 ControlNet Communication Module

🔧Key Features

✅Fiber Optic Interface:

Enables long-distance communication(up to several kilometers)using optical fiber cables,ideal for electrically noisy environments or campus-wide networks.

✅Repeater/Media Conversion Function:

The CC-PAOH01 can act as a repeater to extend ControlNet network distance or as a media converter between coaxial(copper)and fiber optic segments.

✅High-Speed Deterministic Network:

Operates at 5 Mbps,supporting time-critical control applications with precise synchronization.

✅Dual Port(Typical):

Often features two optical ports(Port 1 and Port 2),allowing daisy-chaining or ring topology configurations.

✅LED Indicators:

Provides status LEDs for:

Link status

Network activity

Fault indication

Mode(repeater,link,etc.)

✅Hot Swappable:

Can be replaced or installed without powering down the chassis(when supported by system configuration).

📌Typical Applications

Large-scale Manufacturing Plants:Connecting multiple production lines over long distances.

Oil&Gas Facilities:Linking remote wellheads,pumping stations,or offshore platforms.

Water/Wastewater Systems:Connecting geographically dispersed pump stations.

Mining Operations:High-noise environments where fiber optic immunity is critical.

Redundant Ring Topologies:Used in fault-tolerant ControlNet rings for high availability.

🔗How It Works

The CC-PAOH01 is installed in a ControlLogix(1756)chassis and connects to the ControlNet network via fiber optic cables.It can:

Extend a ControlNet network beyond the 1000-meter copper limit.

Convert signals from copper-based ControlNet(via another module like 1756-CNBR)to fiber optic.

Repeat signals to maintain signal integrity over long runs.

Enable inter-building or inter-facility communication with immunity to ground loops and EMI.

⚠️Note:The CC-PAOH01 is not a standalone network interface like the 1756-CN2 or CN2R.It is typically used in conjunction with another ControlNet module or as a dedicated optical repeater.

🔄Related Products

Part Number Description

1756-CN2R Primary ControlNet Interface Module(Copper)

1756-CNBR Redundant ControlNet Interface Module

1786-CP3 ControlNet Media Converter(Copper to Fiber)

1784-PCMK PCI ControlNet card for programming

1761-NET-ENI For MicroLogix/SLC with ControlNet option

1786-RPCD ControlNet Repeater with Diagnostic Display

🛠️Installation Tips

Fiber Handling:Use clean,undamaged fiber cables.Avoid tight bends(min.30 mm radius).

Wavelength:Typically uses 1300 nm multimode fiber.

Termination:Ensure proper SC connector mating;clean ends with fiber optic cleaner.

Network Configuration:Use Rockwell’s Network Configuration Manager or Studio 5000 to monitor link status.

Grounding:Ensure proper grounding to avoid noise coupling,even with fiber isolation.

✅Common Use Case Example

In a large water treatment plant,a ControlLogix PLC in the main control room uses a 1756-CN2R on ControlNet over copper.To connect a remote pump station 2 km away,a CC-PAOH01 is installed at both ends,converting the signal to fiber optic.The CC-PAOH01 acts as a repeater,maintaining signal strength and enabling real-time control.

❗Important Notes

The CC-PAOH01 is discontinued/legacy.Rockwell Automation has moved toward Ethernet/IP and CIP networks over Ethernet(e.g.,10/100/1000BASE-T,fiber).

Replacement or modernization often involves migrating to 1756-EN2x or 1756-EN4x modules with fiber uplinks.

However,CC-PAOH01 is still widely used in existing systems and available through surplus,refurbished,or third-party suppliers.

✅Product Guarantee(For Suppliers)

When offering CC-PAOH01:

Confirm optical functionality(Tx/Rx power levels)

Test with ControlNet network simulator

Provide 12–24 month warranty

Ensure ESD-safe packaging

Offer technical support for integration

ABB 5SHY4045L0006 3BHB030310R0001 3BHE039203R0101 GVC736CE101 5SHY4045L0006 3BHB030310R0001 3BHE039203R0101 GVC736CE101 ABB GRID BREAKER UNIT GBU72 3BHE055094R0002 3BHE031197R0001 3BHB030310R0001 In stock!!! Interested parties please inquire