1. Overview
Designed with standard plug-in mechanical structure fully matching universal Ovation control rack backplanes, the module completes protocol conversion between the proprietary rack backplane bus and standard TCP/IP industrial Ethernet. It enables low-latency high-speed data interaction between local DPUs, remote I/O nodes, operator workstations, engineer stations, SIS safety instrumented systems and plant-level MIS management platforms. Every individual module undergoes rigorous factory burn-in aging testing and precise network transmission calibration to guarantee stable and reliable data delivery. Redundant parallel installation eliminates single-point network failure risks and ensures non-stop automatic production operation.
2. Core Functional Features
2.1 High-Speed Ethernet Protocol Translation
Seamlessly converts Ovation internal backplane bus protocol to standard Ethernet TCP/IP protocol. Multiple independent RJ45 Ethernet ports support simultaneous parallel data transmission, effectively lifting system overall communication bandwidth and lowering transmission delay of real-time control commands and alarm event messages.
2.2 Independent Port Isolation & Strong Anti-Interference Capacity
Each Ethernet port is equipped with dedicated electrical isolation circuitry, which effectively suppresses ground loop interference induced by long-distance field network cabling. Built-in surge absorption components resist instantaneous voltage surges and complex electromagnetic noise existing in power plant and chemical plant control rooms.
2.3 Hot-Swap Maintenance & Bumpless Redundant Switchover
Online hot swapping is supported while the entire DCS system operates normally; maintenance replacement will not interrupt existing backbone network links and real-time closed-loop control loops. Dual-module hot standby configuration triggers automatic bumpless switchover once the active gateway fails, without causing any fluctuation to field actuators and production processes.
2.4 Full Onboard Real-Time Self-Diagnosis
The module continuously monitors Ethernet link loss, packet loss rate, port overload, internal power supply abnormality and backplane bus communication exceptions. Fault codes and alarm information can be remotely uploaded to the Ovation operator workstation for unified centralized monitoring, while front panel LED indicators deliver local intuitive status prompts to accelerate on-site troubleshooting.
2.5 Native System Compatibility
Fully compatible with the full series of Ovation DPUs and standard I/O modules. No extra adapter boards or backplane reconstruction modifications are required during installation, suitable for both new automation project construction and spare part replacement for legacy unit renovation.
3. Key Technical Specifications
Mounting Mode: Standard Ovation rack plug-in installation
Communication Interfaces: Multiple independent RJ45 industrial Ethernet ports
Power Supply: DC power fed from rack backplane, no external auxiliary wiring required
Isolation Mode: Galvanic isolation between each Ethernet port and internal backplane circuit
Operating Temperature: 0 ℃ ~ +60 ℃
Storage & Transportation Temperature: −40 ℃ ~ +85 ℃
Relative Humidity: ≤95% RH, non-condensing
EMC Compliance: Complies with industrial G3 anti-corrosion standard and anti-interference requirements for power plant control cabinets
4. Front Panel LED Indicator Definition
PWR (Green LED): Steady ON = normal internal module power supply; OFF = power loss or blown internal fuse
LINK/ACT (Green LED): Flashes when the corresponding Ethernet port sends and receives data normally
COMM (Green LED): Blinking = normal data exchange with local DPU and backplane bus
FAULT (Red LED): Illuminates upon hardware damage, network disconnection or communication failure; fault status is latched for maintenance confirmation
5. Application Scope
Thermal Power Industry
Installed in main control racks of boilers, turbines and generators to build high-speed Ethernet backbone links connecting DPUs, remote I/O cabinets, operator stations and plant SIS/MIS systems.
Petrochemical Industry
Deployed in control cabinets of reactors, fractionators and pipeline transmission units to realize high-speed data interconnection between local control racks, field intelligent instruments and central monitoring platforms.
Metallurgy, Waste Incineration Power Plants & District Heating Stations
Used as backbone network interconnection equipment for distributed control cabinets, supporting long-cycle unattended stable operation of complete production lines.
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