FOXBORO P0972PP-NCNI Network Interface Module

FOXBORO P0972PP-NCNI Network Interface Module

Product Overview

FOXBORO P0972PP-NCNI is a core network interface module developed by FOXBORO specifically for the I/A Series (Intelligent Automation Series) distributed control system (DCS). Its core function is to build a "data gateway" between the control layer and the information layer, enabling high-speed data exchange between the I/A series control module, on-site equipment, upper computer monitoring system, and enterprise management system. This module deeply integrates NCNI (Network Communication Interface) network communication technology and natively supports bidirectional conversion between industrial Ethernet and FOXBORO exclusive bus protocol. It can operate stably in harsh industrial environments such as petrochemicals and power energy, and is a key device to ensure smooth data flow in the "control monitoring management" three-level architecture of DCS systems.

Compared with ordinary industrial network interfaces, P0972PP-NCNI has the characteristics of high protocol conversion efficiency, strong network redundancy capability, and excellent anti-interference performance. It can achieve seamless transmission of control layer data to the information layer without the need for additional gateway devices. At the same time, it supports remote device management and fault diagnosis, greatly improving the networking and intelligence level of industrial control systems. It is an important supporting component for FOXBORO I/A series systems to achieve Industry 4.0 upgrade.

Specification parameters

Basic Information

Brand/Model: FOXBORO P0972PP-NCNI; Series: I/A Series; Type: NCNI Network Interface Module

Exclusive adaptation to FOXBORO I/A series DCS system, with core function of network protocol conversion

Power supply parameters

Input voltage: 24V DC ± 15%; Rated power consumption: ≤ 25W; supports dual power redundancy

Wide voltage adaptability to industrial power supply fluctuations, redundant power supply enhances operational reliability

network interface

Ethernet interface: 2 10/100/1000Mbps adaptive RJ45; Bus interface: 1 FOXBORO FBM bus interface

Dual Ethernet ports support network redundancy and are compatible with 100Mbps/1G industrial Ethernet environments

communication protocol

Supported protocols: EtherNet/IP, Modbus TCP, FOXBORO NCNI protocol OPC UA

Multi protocol compatibility enables cross system data exchange between the control layer and information layer

performance metrics

Data transmission rate: maximum 1Gbps; Protocol conversion delay: ≤ 1ms; concurrent connections: ≥ 1000

High speed data processing capability to meet the data transmission needs of large-scale control systems

Environment and Safety

Working temperature: -25 ℃~+70 ℃; Protection level: IP20; Explosion proof grade: Exia Ⅱ CT6; EMC standard: IEC 61000-4-2/3/4

Adapt to extreme environments and explosion-proof scenarios, with excellent anti electromagnetic interference performance

Performance characteristics

The FOXBORO P0972PP-NCNI network interface module relies on FOXBORO's technical accumulation in the field of industrial communication and control, combined with NCNI's core advantages in network communication, and has multiple performance highlights that are suitable for complex industrial scenarios:

1. Multi protocol efficient conversion capability: Built in dedicated protocol conversion chip, realizing bidirectional high-speed conversion between FOXBORO FBM bus protocol and general industrial protocols such as EtherNet/IP, Modbus TCP, etc., with conversion delay controlled within 1ms; It supports OPC UA protocol, can directly connect with enterprise MES and ERP systems, and does not need to configure additional industrial Internet gateways to reduce system integration costs.

2. Dual network redundancy and fault-tolerant design: equipped with two 10/100/1000Mbps adaptive Ethernet ports, supporting two redundancy modes: ring network redundancy (MRP) and dual network hot backup; When the main network experiences faults such as disconnection or packet loss, it can automatically switch to the backup network within 50ms, ensuring uninterrupted data transmission and achieving a network reliability of 99.999%.

3. High speed big data transmission performance: Supports 1Gbps Ethernet transmission rate, a single module can simultaneously access 32 I/A series control modules, and process 1000+device connection requests concurrently; Adopting data caching and priority scheduling mechanisms to ensure the priority transmission of key data such as control instructions and alarm signals, avoiding control delays caused by network congestion.

4. Comprehensive anti-interference and protection: adopting a metal shielding shell and internal signal isolation design, achieving 2500V AC electrical isolation between Ethernet interface and bus interface, effectively resisting electromagnetic interference generated by industrial field motors and frequency converters; Through the IEC 61000-4 series anti-interference test, stable communication can still be maintained in strong electromagnetic environments.

5. Remote management and diagnostic function: Supports web management interface and SNMP network management protocol, engineers can remotely configure network parameters and monitor module operation status through a browser; Built in self diagnostic module, capable of real-time monitoring of network connection, power status, protocol conversion abnormalities and other faults, and pushing fault information through email, SMS or system alarm methods to improve operation and maintenance efficiency.

6. Wide range environmental adaptability: After starting at -25 ℃, aging at+70 ℃, and humidity cycling tests, it can operate stably in extreme environments such as cold outdoor cabinets and high-temperature control rooms; The Exia II CT6 explosion-proof rating allows it to be directly used in chemical Zone 0 hazardous areas without the need for additional explosion-proof box protection.

7. Hot swappable and system compatibility features: Supports I/A series system hot swappable function. In case of module failure, it can be replaced while the system is running with power on. Combined with FOXBORO universal backplane design, it can be connected to existing systems without modifying hardware configuration and adapt to the upgrade needs of new and old I/A series systems.

Working principle

The core of the FOXBORO P0972PP-NCNI network interface module is to build an integrated data transmission link of "control layer bus module protocol conversion information layer network". Through protocol parsing, data mapping, and network redundancy control, cross level and cross protocol data interaction is achieved. The specific working mechanism is as follows:

1. Control layer data collection: The module is connected to the I/A series system control bus through the FBM bus interface, and real-time collects on-site data (temperature, pressure, equipment status, etc.) uploaded by the control module (such as P0970VB) and signal module, as well as feedback information on control instruction execution; The collected data is temporarily stored in the internal buffer of the module in the FOXBORO exclusive protocol format.

2. Protocol parsing and conversion: The dedicated protocol conversion chip reads buffer data and parses FOXBORO protocol data into a universal industrial protocol format according to the preset configuration mapping relationship, such as converting register data to Modbus TCP protocol or production object data to EtherNet/IP protocol; Simultaneously receive control instructions sent by the upper computer through Ethernet, convert them into FBM bus protocol format, and send them to the control module.

3. Ethernet data transmission and redundancy control: The converted data packets are processed by the Ethernet controller and sent to the upper computer or enterprise management system through the main Ethernet port; In the dual network redundancy mode, the module monitors the link quality and data transmission status of the primary and backup networks in real time. When the packet loss rate of the primary network exceeds 5% or the link is interrupted, the redundancy switching mechanism is immediately triggered, and the backup network takes over the data transmission. The switching process does not affect the data integrity.

4. Data priority scheduling: The module has a built-in data priority scheduling algorithm, which divides data into three levels - emergency alarm signal (highest level), control instruction (medium level), and historical data upload (normal level); Priority is given to transmitting high-level data during network congestion to ensure that critical information such as emergency shutdown instructions and fault alarms are not delayed and to ensure production safety.

5. Remote management and status feedback: The web management module collects real-time module operating parameters (such as CPU load, network bandwidth usage, power supply voltage) and presents them to remote users through HTML pages; The SNMP agent module converts the running status and fault information into SNMP trap information and sends it to the network management platform; The self diagnostic module regularly checks the hardware circuit and software operation status, and immediately records fault codes and triggers alarms if any abnormalities are found.

6. Redundancy guarantee mechanism: The dual redundant power supply switches in real time through the power monitoring circuit, and switches to the backup power supply within 5ms when the main power supply fails; When configuring with dual module redundancy, the primary and backup modules synchronize data and configuration information in real time through a dedicated synchronization link. When the primary module fails, the backup module automatically takes over the protocol conversion and data transmission functions, achieving uninterrupted control.