The Yokogawa AAI543-H00/A4S00 is a high-performance 16-channel isolated current output module designed for precise analog signal transmission in process control systems. Operating in the 4 to 20 mA range, it is optimized for reliable integration with field devices such as actuators, control valves, and other analog-driven components. Its isolated design ensures high noise immunity and safety in industrial environments, and it supports dual-redundant configuration for maximum availability. The H00 suffix indicates HART communication capability, enabling advanced diagnostics and configuration via the control system. The /A4S00 option provides a pressure clamp terminal block for secure and efficient wiring.

Technical Specifications

Applications

• Industrial process control systems requiring precise analog current outputs

• Valve positioner and actuator control

• Distributed control system (DCS) output interfaces

• Redundant output systems for high-availability processes

• Integration with HART-enabled field devices for diagnostics and monitoring

Advantages

• High Reliability – Isolated output channels ensure stable operation and prevent signal interference.

• Dual-Redundant Capability – Supports standard and fast switchover for critical applications.

• Fast Response – 10 ms update time ensures timely process control.

• HART Communication – Enables advanced diagnostics and configuration.

• Compact Design – Slim form factor fits efficiently in control cabinets.

• Flexible Wiring – Pressure clamp terminal block for easy installation.

FAQ

Q1: What is the output range of the AAI543-H00/A4S00?

A1: It outputs 4 to 20 mA DC signals.

Q2: How many output channels does it have?

A2: It has 16 isolated output channels.

Q3: Can it be used in a redundant configuration?

A3: Yes, it supports both standard and fast switchover redundant configurations.

Q4: Does it support HART communication?

A4: Yes, the H00 version includes HART capability.

Q5: What is the allowable load resistance?

A5: It can drive loads between 0 and 750 Ω.

Q6: How fast is the update period?

A6: The data update period is 10 ms.

Q7: What type of terminal block is included?

A7: The /A4S00 option includes a pressure clamp terminal block.

Q8: What is the operating voltage isolation rating?

A8: 1500 V AC between output and system for 1 minute.

Q9: What is its physical size?

A9: 107.5 × 32.8 × 130 mm.

Q10: How much does the module weigh?

A10: Approximately 0.4 kg.