The Yokogawa AAI143-S00/K4A00 delivers exceptional analog signal conversion with rapid 2 ms update times for demanding control applications. This high-performance module integrates seamlessly into CENTUM VP distributed control systems for precise process monitoring. Engineers select this unit when they require both speed and accuracy with convenient KS Cable Interface connectivity. You can depend on the Yokogawa AAI143-S00/K4A00 for real-time data acquisition in fast-acting control loops. Its hot-swappable design minimizes production downtime during maintenance activities.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | Yokogawa AAI143-S00/K4A00 |
| Product Type | High-Speed Analog Input Module with KS Interface |
| Manufacturer | Yokogawa Electric Corporation |
| Series Compatibility | CENTUM VP, ProSafe-RS, CENTUM CS 3000 |
| Suffix Code -S00 | Standard type, basic configuration |
| Suffix Code /K4A00 | KS Cable Interface Adapter |
| Number of Channels | 16 non-isolated inputs |
| Input Signal Types | 4 to 20 mA DC or 1 to 5 V DC |
| Input Range | -10 to 130 V DC maximum |
| Conversion Accuracy | 0.1% of full scale |
| Conversion Time | 2 ms per channel |
| Protocol Support | HART communication compatible |
| Hot-Swappable Design | Yes, replace without powering down system |
| Channel Isolation | Non-isolated (common ground configuration) |
| Input Impedance (Current Mode) | 250 Ω |
| Input Impedance (Voltage Mode) | 1 MΩ |
| Transmitter Compatibility | Supports 2-wire and 4-wire transmitters |
| Power Consumption | 4.0 W typical |
| Operating Temperature | -10°C to +55°C (14°F to 131°F) |
| Storage Temperature | -20°C to +70°C (-4°F to 158°F) |
| Dimensions (W x H x D) | 100 mm x 80 mm x 35 mm (3.94 x 3.15 x 1.38 inches) |
| Net Weight | 0.25 kg (0.55 lbs) |
| Shipping Weight | 2.1 kg (4.63 lbs) including KS cable assembly |
| Interface Type | KS Cable Interface Adapter with 40-pin connector |
| Mounting Options | DIN rail or backplane in node unit |
| Certifications | CE, UL, CSA, FM Class I Div 2 |
High-Speed Conversion Performance
The Yokogawa AAI143-S00/K4A00 stands out with its remarkable 2 ms conversion time per channel. You can achieve fast loop updates for critical process control applications requiring rapid response. This speed ensures minimal delay between field signal changes and control system action.
| Performance Parameter | Value | Application Benefit |
|---|---|---|
| Conversion Time | 2 ms per channel | Suitable for fast control loops |
| Throughput (All Channels) | 32 ms for complete scan | Rapid process visibility |
| Update Rate | 500 samples per second | Real-time data acquisition |
| Accuracy | 0.1% of full scale | Precise measurement confidence |
| Resolution | 16 bits | Fine granularity for small changes |
| Step Response | 95% within 3 ms | Quick reaction to process upsets |
| Settling Time | 5 ms to final value | Stable readings for control |
Wide Input Range Capability
The Yokogawa AAI143-S00/K4A00 accommodates an exceptionally wide input range from -10 to 130 V DC. You can connect various signal types without concern for overrange damage. This flexibility simplifies inventory management and reduces the need for specialized modules.
| Input Condition | Allowable Range | Protection Feature |
|---|---|---|
| Normal Operation (Current) | 4 to 20 mA DC | Within design limits |
| Normal Operation (Voltage) | 1 to 5 V DC | Within design limits |
| Maximum Continuous Current | 24 mA DC | No performance degradation |
| Maximum Continuous Voltage | 130 V DC | Built-in protection clamping |
| Transient Overvoltage | ±200 V for 1 second | Input protection circuit |
| Reverse Polarity | -10 V DC maximum | Diode protection |
| Open Circuit Detection | < 2 mA | Software-detectable condition |
KS Cable Interface Features
The /K4A00 suffix adds the KS Cable Interface Adapter to streamline field wiring installation. You can connect pre-fabricated KS cables directly to the module without individual terminal wiring. This interface significantly reduces installation time and eliminates wiring errors.
| KS Interface Component | Specification | Installation Benefit |
|---|---|---|
| Module Connector | 40-pin male header | Robust industrial connection |
| Mating Cable | Pre-wired KS cable assembly | Eliminates 32 individual terminations |
| Cable Length Options | 1 m, 2 m, 3 m, or 5 m | Matches field requirements |
| Wire Construction | Shielded twisted-pair | Preserves signal integrity |
| Connector Locking | Screw-lock mechanism | Vibration-resistant connection |
| Channel Identification | Numbered conductors | Simplified troubleshooting |
| Shielding | Overall foil with drain wire | Excellent noise immunity |
HART Communication Support
Full HART protocol compatibility enhances the diagnostic capabilities of the Yokogawa AAI143-S00/K4A00. You can access device health information and secondary variables from smart transmitters. The module simultaneously processes fast analog signals and digital communication without interference.
HART Protocol: Compatible with HART Revision 5, 6, and 7 devices
Digital Access: Read device diagnostics, calibration data, and status
Update Rate: 2-3 digital updates per second per channel
Burst Mode: Configurable for high-speed data from critical instruments
Device Variables: Access up to 4 process variables per HART device
Configuration Tools: Works with Yokogawa FieldMate and AMS Device Manager
Simultaneous Operation: Analog and digital communication occur together
Hot-Swappable Design
The Yokogawa AAI143-S00/K4A00 supports true hot-swap replacement without powering down the control system. You can remove and install modules while the system continues normal operation. This capability eliminates production interruptions for maintenance or module replacement.
| Hot-Swap Feature | Implementation | Operational Benefit |
|---|---|---|
| Live Insertion | Remove/insert with power applied | No system shutdown required |
| Automatic Recognition | System detects new module instantly | Zero configuration downtime |
| Seamless Redundancy | Backup takes over during swap | Continuous process control |
| Safe Removal | No arcing or damage to connectors | Long connector life |
| Status Indication | LED shows module operational state | Clear visual feedback |
| Mechanical Design | Guide rails ensure proper alignment | Easy installation |
Physical Characteristics and Compact Size
The Yokogawa AAI143-S00/K4A00 features an ultra-compact design measuring only 100 mm x 80 mm x 35 mm. You can maximize I/O density in crowded control panels and equipment racks. Its small footprint leaves valuable space for other automation components.
| Physical Parameter | Value | Space Efficiency |
|---|---|---|
| Width | 100 mm (3.94 inches) | Standard single-wide format |
| Height | 80 mm (3.15 inches) | Low-profile installation |
| Depth | 35 mm (1.38 inches) | Minimal cabinet penetration |
| Volume | 280 cm³ (17.1 in³) | Extremely space-efficient |
| Weight | 0.25 kg (0.55 lbs) | Lightweight for easy handling |
| DIN Rail Mount | 35 mm rail compatible | Standard mounting method |
| Side-by-Side Mounting | Zero gap required | Maximum panel density |
Transmitter Compatibility
The module works seamlessly with both 2-wire and 4-wire transmitter configurations. You can connect loop-powered field instruments directly to the Yokogawa AAI143-S00/K4A00 inputs. The wide input range accommodates various transmitter output types without additional signal conditioning.
| Transmitter Type | Wiring Configuration | Typical Applications |
|---|---|---|
| 2-Wire Loop-Powered | Two wires carry power and signal | Pressure, temperature, level |
| 2-Wire with HART | Two wires with digital overlay | Smart field devices |
| 4-Wire Separately Powered | Two signal wires, two power wires | Analyzers, flow computers |
| 4-Wire with HART | Four wires with digital overlay | Complex analytical instruments |
| Voltage Output | Two signal wires | Proximity sensors, positioners |
Details
| Weight | 0.7 kg |
|---|---|
| Dimensions | 2.5 × 20.3 × 15.2 mm |
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