Description
The Yokogawa AAI543-S00 (frequently referenced or mis-typed as AA1543-S00) is a 16-channel, galvanically isolated analog output module engineered for CENTUM CS 3000 and CENTUM VP Distributed Control Systems (DCS). It outputs precise 4 to 20 mA DC control signals to field actuators, control valves, and positioners, while supporting digital HART communication mapping.
Technical Specifications (Model Suffix: -S00)
| Parameter | Value |
| Manufacturer | Yokogawa Electric Corporation |
| Product Type | Analog Output Module (Field Control Network / FIO) |
| Number of Channels | 16 channels, fully isolated |
| Output Signal Range | 4 to 20 mA DC |
| Allowable Load Resistance | 0 to 750 \Omega |
| Circuit-Open Detection | Less than 0.65 mA |
| Measurement Accuracy | \pm 48 \, \muA |
| Data Update Period | 10 ms |
| Drift Due to Temperature Change | \pm 16 \, \muA / 10 °C |
| Withstanding Voltage | 1,500 V AC for 1 minute (between output and system logic) |
| HART Communication | Supported (digital overlay communication protocol) |
| Current Consumption | 230 mA max (5 V DC), 540 mA max (24 V DC) |
| Module Weight | 0.4 kg |
Supply Terms & Commercial Details
- Availability: Stock-dependent; standard inventory typically available for prompt dispatch or project staging.
- Lead Time: Stock items ship within 3 to 5 business days; project-scale quantities vary by region.
- Warranty: 12-month standard replacement warranty covering functional hardware defects.
- Condition: New Surplus / Factory Original (verify exact packaging status upon inquiry).
- Pricing Note: Listed price is indicative, not final. Price subject to market conditions; contact us for a firm quote.
Engineering & Integration Guidance
When deploying the AAI543-S00 module in control loops, observe the following architectural constraints:
- Redundancy Configuration: The module features a standard switch-over response in dual-redundant node configurations when paired with matched base plates and redundant adapter cables.
- Loop Load Limitation: Ensure total loop resistance (including wiring and actuator impedance) does not exceed the 750 \Omega limit at maximum output current (20 mA) to prevent saturation errors.
- Field Wiring Terminations: Connect field wiring via dedicated pressure clamp terminal blocks, MIL connector cables, or KS1 dedicated cables depending on the node interface unit setup.
- Verification: Always cross-reference node slot allocations and check control software marshalling definitions in CENTUM VP Engineering before hot-swapping or commissioning live outputs.
Frequently Asked Questions
Is the AAI543-S00 compatible with HART-enabled valve positioners?
Yes. The module supports digital HART communication overlay, allowing diagnostic data and parameters from smart field devices to be polled directly through the control network.
Can this output module be used in a redundant node setup?
Yes. The “-S00” suffix designates a standard switch-over response profile suitable for redundant node configurations utilizing dual module slots.
What is the circuit-open detection threshold for this module?
The module triggers an open-circuit diagnostic flag if the load current drops below 0.65 mA, indicating a broken control loop or disconnected actuator terminal.
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