Product Short Description
Product Name: Yokogawa AAI543-S00/S1 Analog Output Module (4–20 mA, 16-Channel, Isolated, Standard Type, Fast Switch-over Redundancy, ISA G3)
Product Overview: The “S” series of AAI543 is the standard type without HART communication. “-S00” = standard type, basic version, no fast switch-over; “S1” = adds fast switch-over redundancy (<1 ms) for high-frequency control and ISA G3 anti-corrosion option. This module delivers pure 4–20 mA output for driving conventional analog actuators.
Description
Key Technical Specifications:
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Output Channels: 16, isolated
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Output Signal: 4 to 20 mA DC
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Accuracy: ±48 µA
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Allowable Load Resistance: 0 to 750 Ω
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Open-circuit Detection: Less than 0.65 mA
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Data Update Cycle: 10 ms
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Switching Response: Standard (AAI543-S00) / Fast <1 ms (AAI543-S1)
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Temperature Drift: ±16 µA / 10 °C
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Withstand Voltage: 1500 V AC for 1 minute (between output and system)
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Current Consumption: 230 mA @ 5 V DC, 540 mA @ 24 V DC
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External Connection: Crimp terminal, MIL connector cable, or KS1 dedicated cable
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Dimensions (W × D × H): 107.5 × 32.8 × 130 mm
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Weight: 0.4 kg
Features:
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Fully isolated design suppresses electromagnetic interference
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16-channel synchronous output with ≤10 ms update cycle meets multi-loop real-time control
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Built-in self-diagnosis monitors open circuit, short circuit, and over-range conditions
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Hot-swappable: replace module online without shutting down the system
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Dual-redundancy support with S1 suffix enabling <1 ms switch-over
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ISA G3 option (suffix 1) provides corrosion resistance for harsh environments
Applications: Distributed control systems in oil & natural gas, chemical, and power plants; precision process control on production lines; redundant control systems for high-availability processes; remote terminal units for industrial automation.
Installation & Usage Notes: For explosive atmospheres, pair with explosion-proof junction box or safety barrier (e.g., P+F KFD2 series) as the module itself is not explosion-protected. S1 variant requires redundant power module (e.g., PW302) and communication module (e.g., ALR111) configured via CENTUM VP.
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