Model Explanation

51401088-100: Honeywell part number (written as 51401088100)

51401088 = CNI (Computer Network Interface) network interface card series

100 = Standard version, Rev F hardware, Rev D firmware, with Flash J

Component Type: CNI PWA (Printed Circuit Board Assembly, part number 51401087-001)

Compatible Systems: TDC 3000, TPS, Experion PKS (LCN network)

Alternative Model: No direct alternative. It is a dedicated Ethernet interface card for LCN network. Technical Specifications

Processor: Specialized network processor, with a main frequency of 25 MHz

Memory: 128 KB RAM (data cache), 512 KB Flash (firmware storage)

Network interface: 10/100 Mbps Ethernet (RJ45), supporting TCP/IP, UDP/IP

Protocol support: Honeywell dedicated LCN-Ethernet protocol, Modbus TCP, OPC (adapter)

Backplane interface: LCN dedicated bus, rate 10 Mbps

Power supply: 5 VDC (backplane, ±5%), power consumption ≤ 20 W

Operating temperature: 0°C ~ +60°C

Storage temperature: -40°C ~ +85°C

Humidity: 5% ~ 95% RH (no condensation)

Size: Standard 19-inch card (3U), LCN slot

Weight: Approximately 1.1 kg

Certifications: CE, UL, CSA, FM

Interface and Configuration

External interface: RJ45 Ethernet port (10/100 Mbps auto-sensing), status LED (LINK/ACT, FAULT)

Backplane interface: LCN cabinet gold finger, dedicated high-speed data bus

Configuration method: Built-in MAC address (fixed) + system software configuration (IP address, subnet mask, gateway)

Redundancy: Supports 1:1 hot redundancy, automatic network failure switching, zero data loss

Compatibility: Compatible with TDC 3000 LCN full version, compatible with UWS, OWS, third-party upper computer Core function

LCN and Ethernet Protocol Conversion: Achieve bidirectional conversion between LCN's proprietary protocol and standard TCP/IP protocol, opening up data channels between the DCS internal network and the external network

High-speed Data Transmission: Support 10/100 Mbps Ethernet communication, with 10 Mbps on the LCN side, meeting the requirements for high-speed interaction of real-time process data, historical trends, and alarm information

Upper Computer and DCS Data Gateway: Acting as a bridge between OWS/UWS/third-party SCADA and TDC 3000, supporting process point reading and writing, trend collection, alarm subscription, and remote monitoring

Network Isolation and Security Protection: Built-in data filtering and access control mechanisms, isolating the LCN internal network from the external network, preventing illegal access, and ensuring the security of the DCS system

Firmware Online Upgrade: Supports online firmware update via Ethernet, without the need to remove the card, reducing maintenance downtime Applicable scenarios

System: Honeywell TDC 3000, TPS, Experion PKS (LCN compatible)

Equipment: LCN cabinet, operation station (OWS/UWS), upper computer server, third-party SCADA system

Industry: Petrochemicals, thermal power, nuclear power, metallurgy, cement, pharmaceuticals

Application: DCS communication with upper computer, remote monitoring, data collection and analysis, third-party system integration, system network expansion