YOKOGAWA AIP444-S1 – Multi-Channel Analog Input Module | CENTUM VP / CS 3000 Platform
Engineering Background
The AIP444-S1 is a high-density analog input module engineered by Yokogawa Electric Corporation for deployment within the CENTUM VP and CS 3000 Distributed Control System (DCS) platforms. Designed to meet the rigorous demands of continuous process industries, this module serves as the primary signal acquisition interface between field instrumentation and the Field Control Station (FCS), enabling precise, real-time measurement of process variables across multiple channels.
Product Positioning
Targeted at procurement engineers and automation specialists in oil & gas, petrochemical, power generation, and advanced manufacturing, the AIP444-S1 delivers OEM-grade reliability with full compatibility across Yokogawa’s CENTUM VP and CS 3000 architecture. It is the preferred choice for system expansions, spare-part replenishment, and brownfield DCS upgrades where signal integrity and platform continuity are non-negotiable.
Complete Technical Specifications
- Model: AIP444-S1
- Manufacturer: Yokogawa Electric Corporation
- Series / Platform: CENTUM VP / CS 3000 FCS (Field Control Station)
- Module Type: Analog Input (AI)
- Input Channels: 4-channel (multi-point analog signal acquisition)
- Input Signal Types: 4–20 mA DC (standard), compatible with HART-enabled field devices
- Input Impedance: ≤ 250 Ω (current input)
- Resolution: 16-bit A/D conversion
- Accuracy: ±0.1% of full scale (typical, at 25°C)
- Isolation: Channel-to-channel and channel-to-bus galvanic isolation
- Power Supply: Supplied via FCS backplane bus (no external power required)
- Operating Temperature: 0°C to +55°C
- Storage Temperature: -20°C to +70°C
- Humidity: 5% to 95% RH (non-condensing)
- Weight: Approx. 2,670 g (module with housing)
- Country of Origin: Japan
- HS Code: 8537.10
- Certifications: CE, UL (per Yokogawa standard DCS module certification)
Proven Application Environments
- Oil & Gas: Upstream wellhead monitoring, midstream pipeline SCADA integration, downstream refinery process control
- Petrochemical & Chemical: Reactor temperature/pressure loop acquisition, distillation column instrumentation
- Power Generation: Boiler control, turbine inlet parameter monitoring, combined-cycle plant DCS integration
- Pulp & Paper / Pharmaceuticals: Batch process variable acquisition, FDA 21 CFR Part 11-compliant environments
- Water & Wastewater: Flow, level, and pressure signal aggregation for treatment plant automation
Engineering Advantages
- High-Density I/O: 4-channel design maximizes cabinet space utilization within FCS node enclosures
- Galvanic Isolation: Eliminates ground loop interference, critical in electrically noisy industrial environments
- Hot-Swap Capability: Supports online module replacement without FCS shutdown (subject to system configuration)
- Seamless CENTUM VP Integration: Plug-and-play compatibility with existing CENTUM VP and CS 3000 FCS node hardware
- HART Pass-Through: Enables secondary variable access and remote device diagnostics via HART protocol
- Long-Term OEM Support: Backed by Yokogawa’s global spare-parts and lifecycle management program
System Architecture & Signal Flow
The AIP444-S1 installs directly into the FCS I/O node slot within the CENTUM VP or CS 3000 cabinet. Field transmitters connect via marshalling terminals to the module’s input terminals. The module performs A/D conversion at 16-bit resolution and transmits digitized process values over the FCS internal bus to the Field Control Unit (FCU) for real-time PID control, alarming, and historian logging. The module’s onboard diagnostics continuously monitor channel health and report fault status to the HIS (Human Interface Station) via the Vnet/IP control network.
Sourcing & Quality Verification
- Origin: Genuine Yokogawa OEM hardware sourced through authorized distribution and verified secondary market channels
- Inspection: Each unit undergoes visual inspection, label verification, and functional pre-shipment testing
- Traceability: Serial number and firmware version documented per shipment
- Packaging: Anti-static ESD packaging with desiccant; double-boxed for international freight
- Warranty: 12-month limited warranty against manufacturing defects (see Konmask.com terms)
Procurement Process
- Submit RFQ: Contact support@konmask.com with quantity, delivery timeline, and destination port
- Quotation: Formal quotation issued within 1 business day including lead time, freight options, and payment terms
- Order Confirmation: Purchase order accepted via email; proforma invoice issued for T/T or L/C payment
- Shipment: DHL / FedEx Express or sea freight (FCL/LCL) with full tracking and commercial invoice/packing list
- After-Sales: Technical support available via email and WhatsApp; replacement RMA process within warranty period
Technical FAQ
Q: Is the AIP444-S1 compatible with both CENTUM VP and CS 3000?
A: Yes. The AIP444-S1 is designed for use across both CENTUM VP and CS 3000 FCS platforms. Always verify the specific FCS node type and firmware revision with your Yokogawa system documentation before installation.
Q: Can this module be replaced online without shutting down the FCS?
A: Hot-swap capability depends on the FCS node configuration and whether redundant I/O is enabled. Consult your CENTUM VP engineering manual (IM 33J01B30-01EN) for node-specific procedures.
Q: What is the maximum cable length from field transmitter to module input?
A: Yokogawa recommends a maximum loop resistance (cable + module input impedance) not exceeding the transmitter’s load driving capability. Typical 4–20 mA loops support cable runs up to 1,500 m depending on conductor cross-section and transmitter output voltage.
Q: Do you provide a certificate of conformance or test report?
A: Yes. A certificate of conformance and pre-shipment inspection report are available upon request for orders of 2 units or more.
Q: What are the payment terms for international orders?
A: We accept T/T (bank wire transfer), L/C at sight, and Western Union for international orders. Domestic CNY orders may use Alipay or bank transfer.
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