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        AAI543-S00 S1

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        1001 reviews ｜ Need a Specific Revision?
        The AAI543-S00 S1 is a Yokogawa isolated analog output module with 16 channels of 4‑20 mA, standard switch‑over response in redundant configuration, and basic type (no G3/temperature options).
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
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        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for AAI543-S00 S1

        • Manufacturer:
          Yokogawa
        • Part Number:
          AAI543-S00 S1
        • Product Family:
          Yokogawa DCS system
        • Product Type:
          Isolated Analog Output Module
        • Number of Channels:
          16
        • Output Signal:
          4‑20 mA
        • Allowable Load Resistance:
          0 to 750 Ω
        • Circuit‑Open Detection:
          <0.65 mA
        • Accuracy:
          ±48 μA
        • Data Update Period:
          10 ms
        • Drift (ambient temperature):
          ±16 μA per 10°C
        • Redundancy:
          Dual‑redundant configuration (standard switch‑over response)
        • Switch‑over Response (standard):
          Output drop below 4 mA for max. 100 ms
        • Current Consumption (5 V DC):
          230 mA
        • Current Consumption (24 V DC):
          540 mA
        • Weight:
          0.3 kg
        • Estimated shipping dimensions:
          3.2x10.6x13cm
        • Tariff Code:
          8517795000
        • Country of origin:
          Japan
        • Place of shipment:
          Xiamen, Fujian, China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Specifications Application Operating Environment Monitoring & Control

        Features:

        • Provides 16 independent analog outputs; each channel isolated from system; 1500 V AC withstand voltage; 0‑750 Ω load range.
        • Two identical modules can be configured redundantly; output drop below 4 mA for max. 100 ms during switch‑over.
        • Accuracy ±48 μA; drift ±16 μA/10°C; circuit‑open detection (<0.65 mA); data update period 10 ms.
        The AAI543-S00 S1 provides 16 independent analog output channels, each capable of driving a 4‑20 mA current loop. This high channel density is ideal for applications with many final control elements such as valve positioners, I/P converters, and actuators. Each channel is isolated from the system with a withstand voltage of 1500 V AC for 1 minute (500 V AC when using dedicated cable). This isolation protects the DCS backplane from field wiring faults and prevents ground loops. The allowable load resistance is 0 to 750 Ω, sufficient for most industrial loops.

        The AAI543-S00 S1 can be configured in a dual‑redundant pair using two identical modules. This is essential for high‑availability applications where a single output module failure must not interrupt process control. In normal operation, one module is active while the standby module is synchronized. If the active module fails, the standby module automatically takes over.

        The AAI543-S00 S1 is designed for precise analog output control. Its output accuracy is ±48 μA, equivalent to approximately 0.3% of the 16 mA span (20 mA – 4 mA = 16 mA). This precision ensures that the commanded output closely matches the actual current delivered to the field device. The module also has low temperature drift: ±16 μA per 10°C change in ambient temperature.

        The AAI543-S00 S1 YOKOGAWA Isolated Analog Output Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL)by the manufacturer (OEM).

        YOKOGAWA AAI543-S00 S1 Isolated Analog Output Module Manuals, Datasheets,Drivers,Link Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not included with this equipment unless listed in the above stock item description.All prices are shown in USD.
        YOKOGAWA AAI543-S00 S1 Isolated Analog Output Module Specs

        General

        • Manufacturer YOKOGAWA
        • Model AAI543-S00 S1
        • Condition New Original ready stock
        • Product Family AAM50,AIP502,AIP512,CP345
        Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not included with this equipment unless listed in the above stock item description.All prices are shown in USD.
        • Oil & Gas (Upstream & Downstream): Regulates control valves on pipelines, modulates fuel flow meters, and commands positions for subsea/surface choke valves.
        • Petrochemical & Chemical Plants: Manages feed rates into chemical reactors, controls reflux flows in distillation columns, and interfaces with variable speed drives (VFDs) for product dosing.
        • Power Generation: Drives steam governor valves, boiler feed-water control systems, and cooling tower fan speed controllers.
        • Ambient Humidity: 10% to 90% RH (non-condensing) across both operating and storage states.
        • Temperature Rate of Change: Must not exceed ±10°C per hour to prevent thermal stress on components.
        • Atmospheric/Chemical Protection: The standard -S00 model is basic and lack specialized G3 conformal coating. It must be housed in a clean, dust-free, and non-corrosive environment (ISA-S71.04 Class G1 equivalent).
        • Isolation Protection: Offers 1500 V AC dielectric strength between the internal system logic and the 16 external field loops to prevent ground-loop surges from damaging the DCS.
        • Loop Architecture: Employs an isolated, current-sinking or current-sourcing (depending on wiring base) design per channel to push a high-accuracy 4-20 mA DC signal.
        • Response Speed: The module updates all 16 analog output values within milliseconds, fitting fast PID loops and cascade control schemes.
        • Output Readback & Status Check: The internal circuitry continuously monitors the actual loop current and reads it back to the FCS processor. If the physical output diverges from the programmed DCS value, a system alarm is triggered.
        Description
        The AAI543-S00 S1 is a 16‑channel isolated analog output module for Yokogawa CENTUM VP systems. It provides 4‑20 mA signals to field devices such as valve positioners and I/P converters. The module supports dual‑redundant configuration with standard switch‑over response (100 ms maximum output drop). Withstanding voltage between output and system is 1500 V AC for 1 minute. Accuracy is ±48 μA with a data update period of 10 ms. 

        When using the AAI543-S00 S1, engineers can connect up to 16 field devices with a maximum load resistance of 750 Ω. Maximum current consumption is 230 mA (5 V DC) and 540 mA (24 V DC). The module weighs 0.4 kg. External communication options include pressure clamp terminal, MIL connector cable, or dedicated KS1 cable. The AAI543-S00 S1 is part of the AAI543 family, which includes standard and fast switch‑over versions. 

        The AAI543-S00 S1 does not include HART communication (no “-H” suffix). The “-S” indicates standard type, “5” indicates standard switch‑over response with no explosion protection, “0” indicates basic type (no ISA G3 option, no temperature extension). The “S1” suffix may indicate additional termination options.

        For legacy Yokogawa DCS expansions, the AAI543-S00 S1 provides reliable 4‑20 mA output with isolation. It is used in FCS (Field Control Stations) to control final control elements. The module has a withstanding voltage of 1500 V AC for 1 minute (500 V AC when using dedicated cable). It weighs 0.4 kg and has dimensions typical of Yokogawa analog modules.
        Alternative Names
        AAI543-S00 SI AAI543-SOO S1 AAI543 S00 S1 AAI543-H03 S1 AAM50 AIP502 AIP512 CP345
        Technical notes
        The AAI543-S00 S1 is a Yokogawa 16‑channel isolated analog output module for CENTUM VP. It provides 4‑20 mA signals with 1500 V AC isolation, 750 Ω load capability, and ±48 μA accuracy. The module supports dual‑redundant configuration with standard switch‑over response (100 ms). It has circuit‑open detection (<0.65 mA) and a data update period of 10 ms.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        Does AAI543-S00 S1 support HART communication?
        No. The AAI543-S00 S1 does not include HART (no “-H” suffix). For HART communication, order the AAI543-H version. The -S00 S1 provides analog 4‑20 mA only. HART versions also require EB401 firmware rev. 2 or later.
        How fast is AAI543-S00 S1 in redundant configuration?
        The AAI543-S00 S1 has standard switch‑over response with output drop below 4 mA for a maximum of 100 ms during switch‑over. For faster response (2 ms), select the “-□6□/□□” fast switch‑over version.
        Is AAI543-S00 S1 suitable for harsh environments?
        No. The suffix “0” indicates basic type – no ISA G3 corrosion protection and standard temperature range (0‑50°C). For harsh environments, select suffix “1” (ISA G3 option) or “3” (G3 + temperature extension to -20‑70°C).
        What is the maximum load resistance for AAI543-S00 S1?
        The module can drive loads up to 750 Ω. This is sufficient for most valve positioners and I/P converters. Calculate the total loop resistance (including cable resistance and device input impedance) and ensure it does not exceed 750 Ω for accurate 4‑20 mA output.

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