CNB-IIA Yokogawa Network Bridge Module

CNB-IIA Yokogawa Communication Network Bridge Module for DCS

CNB-IIA Yokogawa Communication Network Bridge Module for DCS

Disponibilidad: 10 Quedan en stock

Yokogawa CNB-IIA Communication Network Bridge Module Configured for network interfacing within CENTUM CS 3000 and CENTUM VP systems, the Yokogawa...

Código: CNB-IIA

Manufacturer: Yokogawa
Product No.: CNB-IIA
Product Type: Communication Network Bridge Modules
Product Origin: Japan
Payment:T/T, Western Union
Weight: 450g
Shipping port: Xiamen
Warranty: 12 months

Descripción Reseñas

Yokogawa CNB-IIA Communication Network Bridge Module

Configured for network interfacing within CENTUM CS 3000 and CENTUM VP systems, the Yokogawa CNB-IIA (CNB-IIA Communication Network Bridge Module) provides direct physical execution of data exchange between field I/O devices and the DCS control bus.

Hardware Specifications

Parameter	Specification
Model	CNB-IIA
Brand	Yokogawa
Origin	Japan (Manufacturing Standard)
Weight	0.45 to 0.9 kg
Dimensions	Compact rack-mount / panel-mount footprint
Operating Temp	-10 to 55 deg C
Power Consumption	24 VDC
Communication	V-net, Ethernet, RS-485
Function	Data acquisition, HART interface

Process Control and Communication Connectivity

The CNB-IIA module facilitates high-fidelity data acquisition by acting as a bridge between disparate field signals and the primary V-net control network. The module supports HART communication protocols, allowing for the transmission of diagnostic and process data from smart field instruments directly to the DCS. To ensure signal integrity, the architecture utilizes channel-to-channel isolation on the I/O interface, which effectively minimizes the propagation of common-mode noise and ground potential differences across the network bridge.

Frequently Asked Questions

Q: Can the CNB-IIA be deployed in a dual-redundant configuration?

A: Yes, the CNB-IIA supports dual-redundant installation. When installed in pairs, the system automatically manages data synchronization, providing seamless failover in the event of a communication link or bridge module failure.

Q: What are the physical cabling requirements for the V-net interface?

A: For V-net and Ethernet links, use shielded twisted-pair cabling compliant with the specified data rate. Maintain proper termination impedance and ensure all shields are grounded at the cabinet entrance to preserve the galvanic isolation integrity.

Field Installation Guidelines

Mounting: Secure the module within the designated rack or panel slot. Ensure all backplane locking mechanisms are fully seated to maintain reliable power and data contact.
Grounding: Terminate the module's ground lug to the cabinet protective earth (PE) bus. This is required to maintain the electrical isolation barrier and satisfy electromagnetic compatibility (EMC) requirements.
Cable Routing: Route communication cabling away from high-power electromagnetic sources, such as Variable Frequency Drives (VFDs) or heavy motor contactors, to prevent inductive interference.
Environment: While the module is designed for industrial environments, ensure the cabinet air filtration is maintained to prevent dust accumulation, which could impair the heat dissipation of the internal components.

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