Product Overview

The Foxboro P0916ND is a shielded module fieldbus cable used to interconnect compatible baseplates in Foxboro I/A Series distributed control systems. Its 0.25-meter cable length suits closely positioned baseplates, where a short connection maintains the required communication path without leaving excessive cable slack. The cable is specified for legacy baseplate configurations and supports the module fieldbus connection used for data exchange between compatible system bases. <Cite refs={[“turn805100search0″,”turn805100search1”]}/>

In a distributed control cabinet, adjacent baseplates may need a direct fieldbus connection to support communication between installed control-system hardware. The P0916ND provides this physical link through the designated baseplate connectors. Its short routing distance is useful when the mounting arrangement places the connected bases close together and the cable must remain clear of neighboring wiring and cabinet hardware.

The P0916ND belongs to the legacy cable reference group used with earlier I/A Series baseplates. Related cable references may differ in length or cable construction, so a replacement should be selected by the installed baseplate type, required connection, and exact part number rather than by cable length alone.

This is a passive communication cable, not an active fieldbus interface or signal repeater. It carries electrical signals between compatible baseplate interfaces, while the connected system hardware handles communication and control functions. Correct installation helps preserve the intended signal path and avoids unnecessary strain on the connectors.

Technical Specifications

Product Features

• 2 Mbps fieldbus connection: Supports the specified communication link between compatible baseplate interfaces.
• Short cable length: Accommodates closely positioned bases in compact control-cabinet layouts.
• Shielded twisted-pair construction: Supports the intended electrical signal connection in an industrial control environment.
• Legacy baseplate application: Associated with the earlier P0914XA/P0914XB baseplate family.
• Passive signal transmission: Carries communication signals without independent processing or regeneration.
• Maintenance replacement: Allows a matching cable to be replaced without redesigning the baseplate communication arrangement.

Working Principle

The P0916ND provides the electrical path for module fieldbus signals between compatible baseplates. When the connected system exchanges data, the cable carries the corresponding electrical signals through its conductors.

Baseplate A → P0916ND Module Fieldbus Cable → Baseplate B

On the documented legacy baseplates, the two module fieldbus connectors are internally connected in parallel. Either connector can therefore be used for an appropriate base-to-base connection, provided the system arrangement follows the applicable installation requirements. The cable itself does not process messages or determine the communication sequence.

The shielded twisted-pair construction helps maintain the intended signal connection. Cable routing, connector condition, and correct seating remain important because a damaged conductor or poor connection can interrupt communication between the connected bases.

When diagnosing a communication fault, inspect the cable and its mating interfaces before replacing active modules. Confirm the baseplate type, connector engagement, cable condition, and termination arrangement required by the installation. The appropriate bus terminators must also be fitted where the system design calls for them.

Role in the Foxboro I/A Series Fieldbus Architecture

The P0916ND forms part of the module fieldbus connection between compatible legacy baseplates. It carries the electrical signals required for communication, while the connected hardware handles data processing and system control.

Control-System Hardware → Baseplate A → P0916ND → Baseplate B → Connected Fieldbus Modules

Industrial Applications

Installation and Maintenance

1. Verify the part number: Confirm P0916ND and ensure the cable matches the legacy baseplate configuration.
2. Identify both baseplates: Check the intended connection points and the fieldbus routing arrangement before disconnecting the existing cable.
3. Inspect the connectors: Examine the mating interfaces for contamination, damage, or loose retaining hardware.
4. Follow the isolation procedure: Apply the appropriate maintenance and electrical safety procedures before handling the connection.
5. Check the cable jacket: Look for cuts, crushing, deformation, or signs of deterioration.
6. Maintain the specified routing: Avoid sharp bends, excessive tension, and contact with sharp cabinet edges.
7. Connect the correct interfaces: Ensure the cable is fitted to the designated module fieldbus connectors rather than power or unrelated communication ports.
8. Check the bus topology: Confirm that the baseplate arrangement follows the applicable system design, including any required redundant connections.
9. Verify termination: Check that unused fieldbus connectors have the appropriate terminators or adapters for the installed baseplate type.
10. Secure the cable: Ensure that both ends are fully seated and that the cable is not under mechanical strain.
11. Test the communication link: Check the system’s communication status and investigate any remaining fieldbus faults.
12. Record the maintenance work: Document the cable reference, connected baseplates, termination arrangement, and commissioning results.

Compatible System Components

Recommended Related Models

Key Advantages

• Supports 2 Mbps module fieldbus communication between compatible legacy baseplates.
• Provides a short connection for closely positioned hardware.
• Uses shielded twisted-pair construction for the specified fieldbus application.
• Supports maintenance of existing I/A Series installations without changing the basic connection architecture.

Technical FAQs

Which baseplate configurations are associated with the P0916ND?

The P0916ND is listed for legacy P0914XA/P0914XB baseplate arrangements. Before replacement, verify the installed baseplate type and its fieldbus connector requirements.

How does the P0916ND differ from the P0916NK?

The P0916ND is 0.25 meters long, whereas the P0916NK is 0.12 meters long. Both belong to the legacy module fieldbus cable family, but the required connection distance and installation arrangement determine which reference is appropriate.

Does the P0916ND require a separate fieldbus terminator?

Termination depends on the baseplate type and network topology. On applicable legacy baseplates, unused module fieldbus connectors require the appropriate termination hardware. Follow the installed system’s wiring instructions rather than assuming every connector is internally terminated.

What should be checked if communication fails after replacing the P0916ND?

Inspect connector seating, cable condition, baseplate compatibility, and the fieldbus termination arrangement. Also verify that the cable is connected to the intended interfaces and that the total cable run remains within the applicable system limits.