The Yokogawa AAI143-H50 S1 is a 16-channel isolated analog input module designed for the CENTUM VP and CENTUM CS 3000 distributed control systems (DCS). It accepts standard 4–20 mA DC signals from field transmitters and converts them to high-precision digital data for process monitoring and control.
Item No :
AAI143-H50 S1Order(MOQ) :
1 PiecePayment :
EXWProduct Origin :
USAShipping Port :
WuhanLead Time :
3~5 daysWeight :
3kg| Specification | Description |
|---|---|
| Manufacturer | Yokogawa |
| Model | AAI143-H50 S1 |
| Product Family | CENTUM VP / CENTUM CS 3000 (FIO) |
| Product Type | Analog Input Module |
| Input Channels | 16, fully isolated |
| Input Signal | 4–20 mA DC |
| Allowable Input Current | 24 mA |
| Input Impedance | 270–350 Ω (power ON); ≥500 kΩ (power OFF) |
| Accuracy | ±16 µA (±0.1% of full scale) |
| Resolution | 16-bit |
| Data Update Period | 10 ms |
| HART Communication | Supported (H50 series) |
| Isolation Voltage | 1500 V AC (Input to System) |
| Transmitter Power Supply | ≥ 19.0 V DC @ 20 mA |
| Power Consumption | 230 mA @ 5 V DC; 540 mA @ 24 V DC |
| Operating Temperature | -20°C to +70°C |
| Weight | Approx. 0.2–0.3 kg |
| Country of Origin | Japan |
| Lifecycle Status | Mature / Available as spare part |
S1 Bundle Configuration: The “S1” designation indicates a factory-ready bundle that includes the ATK4A-00 KS Cable Interface Adapter pre-mounted on the module. This enables plug-and-play connection to AEA4D terminal boards, simplifying high-density cabinet wiring and reducing installation errors.
| Model | Description | Typical Application |
|---|---|---|
| AAI143-H50 S1 (this model) | 16-ch isolated AI, 4–20 mA, HART, with ATK4A-00 adapter | Standard CENTUM VP analog input with HART |
| AAI143-S50 | Standard (non-HART) version with KS Cable Interface | Analog input without HART requirement |
| AAI143-H53 | HART version with different terminal/adapter configuration | Alternative termination options |
| AAI143-S53 | Standard version with ATK4A-00 adapter | Cost-effective non-HART alternative |
| AAI543-H50 | Analog output module (16-ch, 4–20 mA) | Companion output module for CENTUM VP |
| ATK4A-00 | KS Cable Interface Adapter (included in S1 bundle) | Required for AEA4D terminal board connection |
| AEA4D | Terminal board for analog I/O | Field wiring termination |
Q1: What is the primary function of the AAI143-H50 S1?
It is a 16-channel analog input module for Yokogawa CENTUM VP/CS 3000 DCS. It receives 4–20 mA signals from field transmitters (pressure, flow, temperature, level) and converts them to digital data for the DCS controller to perform PID control, monitoring, and alarm functions.
Q2: What does the “S1” suffix mean in the model number?
The S1 designation indicates a factory-bundled configuration that includes the ATK4A-00 KS Cable Interface Adapter pre-mounted on the module. This enables direct plug-and-play connection to AEA4D terminal boards, streamlining cabinet wiring and ensuring immediate compatibility upon delivery.
Q3: Does this module support HART communication?
Yes. The H50 designation indicates HART pass-through support. This allows access to smart transmitter diagnostics and secondary variables directly through the CENTUM VP DCS, improving asset management efficiency without requiring separate HART multiplexers.
Q4: What are the key environmental and isolation specifications?
The module features 1500 V AC galvanic isolation (input to system) for protection against ground loops and common-mode voltage spikes. It operates from -20°C to +70°C and features conformal coating (G3 corrosion protection) for harsh environments such as pulp mills, wastewater plants, and petrochemical facilities.
Q5: Can the AAI143-H50 S1 be used in redundant configurations?
Yes. The module supports dual-redundant pairing, ensuring uninterrupted data acquisition during hardware failures. This is critical for high-availability process control applications in oil & gas, power generation, and chemical plants.
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