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Yokogawa AIP521S CS3000 DCS System Vnet Interface Card
| Brand: Yokogawa |
| Item NO: AIP521S |
| Effect: Vnet interface card for CENTUM CS3000 DCS system |
| Payment:T/T 50% deposit, 50% balance |
| www.szcxdcs.com |
+86 15359298293
Yokogawa AIP521S CS3000 DCS System Vnet Interface Card
AIP521S is the Vnet interface card of Yokogawa CENTUM CS3000 DCS system, used for HIS operation station and engineer station to access Vnet control bus, and is the data exchange bridge between the upper operation terminal and the on-site control station FCS.
AIP521S is mainly responsible for transmitting real-time process data, alarm information, operation instructions, trend records between the operation monitoring computer and DCS control network, realizing functions such as screen monitoring, parameter setting, loop operation, fault alarm, SOE event upload, etc., to ensure stable communication between the operator station and the entire DCS control system.

Yokogawa AIP521S CS3000 DCS System Vnet Interface Card
Core service capability
- Replacement of discontinued parts: Provide original factory compatible or verified replacement solutions for discontinued or obsolete models to reduce system upgrade and renovation costs
- Quick response supply: sufficient inventory of commonly used spare parts, priority response to urgent inquiries, and shortened downtime
- Full chain quality assurance: strict procurement channel management and quality inspection, traceability of key components
- One stop system matching: covering the integrated procurement needs of system level spare parts from control modules to drive devices
Main product range
| Category | Product Details |
|---|---|
| Control Systems (DCS/PLC/CNC) | Panel Controllers, HMI Interfaces, Industrial PCs, CPU Processor Modules, Communication Modules, Analog/Digital I/O Modules |
| Drives & Motion Control | Variable Frequency Drives, Servo Drives, Servo Motors, Power Supply Modules |
| Robot Spare Parts | Robot Control Boards, Axis Computers, Servo Units, I/O Modules and other critical spare parts |
| Condition Monitoring & Safety Systems | Vibration Monitoring Systems, Safety Instrumented Systems (SIS), Redundant Control Systems |


Yokogawa AIP521S CS3000 DCS System Vnet Interface Card
Main brand
| No. | Brand | Country/Region | Main Product Lines | Typical Series/Models |
|---|---|---|---|---|
| 1 | ABB | Switzerland | PLC/DCS Controllers, I/O Modules, Robot Spare Parts, Drive Systems | AC800M, AC800F, AC31, 800xA, Bailey INFI 90, DSQC, Advant OCS, H&B Freelance |
| 2 | Bently Nevada | USA | Condition Monitoring Systems, Vibration Sensors, Eddy Current Probes | 3500/3300 Monitoring System, Eddy Current Probes, Proximitors |
| 3 | TRICONEX | USA | Safety Instrumented Systems (SIS), TMR Redundant Controllers | Tricon System Modules, Communication Modules, I/O Modules |
| 4 | Woodward | USA | Steam/Gas Turbine Control, Speed Governing Systems, Actuators | 505 Governor, ProTech, MicroNet, NetCon |
| 5 | FOXBORO | USA | DCS Systems, I/A Series Control Modules | I/A Series, FBM Modules, Controllers |
| 6 | WESTINGHOUSE | USA | DCS Systems, Ovation Controllers & Modules | Ovation System, WDPF Series |
| 7 | Motorola | USA | Industrial Communication Modules, Embedded Control Modules | MVME Series, VME Bus Modules |
| 8 | GE / GE Fanuc | USA | PLC, Excitation System Modules, CPU/Communication/Analog Modules | IS200/DS200, IC693/IC695/IC697/IC698/IC200/IC660/IC670 |
| 9 | YOKOGAWA | Japan | DCS Systems, CPU Modules, I/O Cards | CENTUM CS3000, CS1000, VP Series |
| 10 | HIMA | Germany | Safety Control Systems, SIL Safety Modules | H41q/H51q, HIMax, HIMatrix |
| 11 | EMERSON | USA | DCS Systems, Redundant Controllers, Safety Systems | Ovation, DeltaV Dual-Channel Redundant Safety Systems |
| 12 | Honeywell | USA | DCS Systems, Process Control Modules | Experion PKS/LS/HS, Plant Scape, TDC2000/3000, TPS, Alcont |
| 13 | ICS TRIPLEX | UK | Trusted Safety Control Systems, TMR Modules | Trusted System, T8000 Series |
| 14 | Kollmorgen | USA | Servo Drives, Servo Motors, Motion Control | S700, S300, AKD Series |
| 15 | PROSOFT | USA | Industrial Communication Modules, Protocol Gateways | MVI69, MVI56, MVI94, MVI71, MVI46, PS69, 3150 |
| 16 | Alstom | France | Power Control, Protection Relays, Control Systems | GEC ALSTHOM, Protection and Control Modules |
| 17 | EATON | USA | Electrical Control, PLC, Power Supplies, Circuit Breakers | XC/XN Series PLC, Moeller Series, Power Supply Modules |
| 18 | Allen-Bradley (Rockwell) | USA | PLC Controllers, I/O Modules, Communication Modules | ControlLogix 1756, CompactLogix 1769, SLC 500 1747/1746, PLC-5 1771/1785 |
| 19 | Schneider | France | PLC, Modicon Series, CPU/Communication Modules | Quantum 140, Modicon M340, Modicon Premium |
————————Shenzhen Changxin Automation Equipment Co Ltd -————————
Products that have been released are welcome for consultation. Due to the wide variety of models, we were unable to upload physical images one by one!


Yokogawa AIP521S CS3000 DCS System Vnet Interface Card
Parameter Specifications
| Parameter | Specification |
|---|---|
| Model | AIP521S |
| Product Type | Vnet Interface Card |
| Applicable System | CENTUM CS3000 DCS |
| Bus Type | Vnet Control Bus |
| Communication Rate | 10 Mbps |
| Network Topology | Bus topology |
| Redundancy Support | Duplex Redundant Communication |
| Interface Connector | BNC Connector |
| Installation Slot | PCI Slot |
| Power Supply | 5 VDC from PCI slot |
| Communication Protocol | Vnet proprietary protocol |
| Max Nodes on Vnet | Up to 64 stations |
| Operating Temperature | 0℃ ~ +55℃ |
| Storage Temperature | -20℃ ~ +70℃ |
| Relative Humidity | 10% ~ 85%, Non-condensing |
| Isolation | Electrical isolation between PC and Vnet bus |
| Diagnostic Function | Link status, communication error diagnosis |
| Status Indicator | LED indicator for RUN / LINK / ERROR |
| Dimension | Standard PCI card size |
| Weight | Approx. 0.28kg |
| EMC Compliance | Industrial EMC standard |
| Medium | Coaxial cable |
Product features
- Developed specifically for the CENTUM CS3000 platform, it stably adapts to the Vnet bus, supports dual redundancy configuration, automatically switches in case of single card failure, and does not interrupt monitoring operations.
- BNC coaxial interface, with strong anti-interference ability, suitable for industrial sites with strong electromagnetic interference in factories.
- The onboard communication status indicator light provides a visual display of operation, link, and fault status, making it convenient for operation and maintenance to troubleshoot network issues.
- Standard PCI slot installation, directly installed in HIS operation station and engineer host, easy to deploy.
- Supports up to 64 Vnet nodes to connect, and can simultaneously interface with multiple FCS control stations to transmit real-time data, alarms, and SOE events.
- It has electrical isolation, isolating the upper computer side and Vnet bus side to prevent potential difference and surge damage to the DCS control network.
- Low communication delay ensures real-time issuance of operation screens and adjustment instructions, meeting the requirements of continuous process control monitoring.








