ABB PNI800 (PNI800K01) Communication Interface Module
PNI800 is the PN800 factory network interface module of ABB Symphony Plus (formerly INFI 90) system, used to connect PC/server and PN800 real-time control network. It is the core communication gateway of DCS system, responsible for high-speed data exchange between HMI, engineer station, OPC client and controller.

1、 Core positioning and model
Model: PNI800 (complete model PNI800K01)
Series: ABB Symphony Plus (S+) DCS, PN800 Factory Network
Functional positioning: PN800 network ↔ Ethernet communication interface for upper computer/server, data server and protocol conversion gateway
Ordering points: PNI800SWLIC-01 software authorization needs to be ordered separately
2、 Hardware specifications (authoritative version)
1. Interface configuration
Ethernet: 2 x 10/100 Mbps RJ45 (MB805 base), supports PRP parallel redundancy
Diagnostic port: 1 x mini USB (front-end, debugging/maintenance)
Base: MB805 (dedicated, including dual network ports)
2. Performance parameters
Protocol: Harmony API (Ethernet TCP), Modbus TCP, OPC UA
Connectivity: Up to 10 SPE clients, supporting 30000 HMI tags
Data rate: 10/100 Mbps adaptive, μ s level timestamp
Redundancy: Supports PRP (IEC 62439), dual LAN (PN800A/B), zero switching time
3. Physics and Environment
Appearance: xA Style (186 mm), horizontally installed
Power supply: 24 VDC (18-30 VDC), power consumption ≤ 3.5 W
Temperature: -20 ℃~+60 ℃
Protection: IP20 (inside the cabinet), CE certification
Installation: DIN rail or panel installation
3、 Core functions
PN800 Network Gateway
Realize bidirectional real-time communication between the upper computer and Symphony Plus controller (SD series), transmitting process data, alarms, events, and configuration information.
Multi protocol conversion
Support Harmony API, Modbus TCP, OPC UA, seamless integration with HMI, SCADA, MES, ERP and other systems.
High speed data service
Single port 100 Mbps, dual port redundancy, 30000 tag processing capacity, meeting the real-time monitoring needs of large-scale DCS.
PRP network redundancy
Dual network access to PN800A/B dual LAN, no single point of failure, zero switching time in case of network failure, ensuring uninterrupted critical data.
Hot swapping and online maintenance
Support hot plugging and online module replacement without affecting system operation; The USB diagnostic port facilitates on-site debugging and troubleshooting.
4、 Typical applications
Industry: Process industries such as power, chemical, metallurgy, water treatment, oil and gas, etc
System: ABB Symphony Plus (S+) DCS, PN800 factory network
Scene:
Communication between engineer station/operator station and controller
OPC server and third-party system data exchange
Remote monitoring and maintenance (supports VPN)
High reliability communication backbone for large-scale DCS systems
5、 Difference from the TRICONEX module
TRICONEX 3009/3721/3625: SIS/ESD Safety Instrumented System, TMR Triple Redundancy, SIL 3， Focus on safety interlocking and emergency parking.
ABB PNI800: DCS process control system, PN800 network communication gateway, PRP redundancy, focusing on process data monitoring and system integration.