Overview
Specifically, it converts field-level analog signals into high-resolution digital data for reliable process monitoring.
Moreover, this module integrates seamlessly with Yokogawa CENTUM systems, therefore ensuring consistent performance across control architectures.
Engineers select the AAI143 series when measurement accuracy, long-term stability, and system compatibility remain critical requirements.
Specification
| Parameter | Specification |
|---|---|
| Product Model | AAI143-S00 / A4S00 |
| Module Type | Point Analog Input Module |
| Manufacturer | Yokogawa Electric Corporation |
| Number of Input Channels | 16 isolated analog input channels |
| Supported Signal Types | 4–20 mA DC, 1–5 V DC |
| Allowable Input Current | ≤ 24 mA |
| Input Resistance (Power ON) | Approx. 270 Ω at 20 mA; 350 Ω at 4 mA |
| Input Resistance (Power OFF) | ≥ 500 kΩ |
| Resolution | 16-bit A/D conversion |
| Accuracy | ±0.1% of full scale (typical) |
| Data Update Period | 10 ms |
| Transmitter Power Supply | 19.0–25.5 V DC, max 25 mA per channel |
| 2-wire / 4-wire Transmitter Support | Configurable per channel |
| Isolation Strength | 1500 V AC for 1 minute between input and system |
| Temperature Drift | ±16 µA per 10 °C |
| HART Communication | Supported with appropriate configuration |
| Maximum Current Consumption | 230 mA at 5 V DC; 540 mA at 24 V DC |
| Power Supply Method | Supplied from system backplane |
| System Compatibility | Yokogawa CENTUM VP and compatible systems |
| Mounting Method | Installed in Yokogawa I/O node or control rack |
| Operating Temperature | −20 °C to +70 °C |
| Storage Temperature | −40 °C to +85 °C |
| Operating Humidity | 5% to 95% RH, non-condensing |
| External Connections | Dedicated system cable or terminal interface |
| Enclosure Protection | IP20 (typical for control cabinet installation) |
| Approximate Weight | 0.3–0.4 kg |
FAQ
A1: It supports standard industrial analog signals including 4–20 mA and 1–5 V DC inputs.Q2: How many input channels are available on this module?
A2: The module provides sixteen independent analog input channels for flexible field signal integration.Q3: Is the AAI143 suitable for noisy industrial environments?
A3: Yes, it includes isolation and noise suppression features for stable operation in demanding conditions.
Q4: Which Yokogawa systems are compatible with this module?
A4: The AAI143-S00/A4S00 integrates with Yokogawa CENTUM VP and compatible control systems.
Q5: Can this module be used for system upgrades or expansions?
A5: Yes, it is commonly used in modernization projects requiring reliable analog signal acquisition.
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