SAI533-H53/A4S00 Analog Output Module | Yokogawa DCS

Product Description

Product Overview

YOKOGAWA SAI533-H53/A4S00 is an Analog Output (AO) module designed for the CENTUM VP Field I/O (FIO) system. It outputs standard 4–20 mA control signals to field devices such as control valves, actuators, and positioners, supporting both conventional and HART-enabled instruments.

This module features module-level isolation and supports redundant configurations, making it suitable for critical process control applications that require stable signal output and high system availability.

Functional Description

The SAI533-H53/A4S00 converts digital control signals from the controller into precise analog current outputs. It interfaces with the control system through the ESB / ER bus via FIO node units and provides reliable signal delivery to field devices under demanding industrial conditions.

The module supports HART communication, enabling device diagnostics and configuration without interrupting the analog output signal.

Technical Specifications

Analog Output Characteristics

• Output Type: DC analog current output

• Number of Channels: 8 channels per module

• Output Signal Range: 4–20 mA DC

• Load Resistance: Typically up to 600 Ω (system dependent)

• Output Accuracy: ±0.1% of span

• Resolution: 16-bit D/A conversion

• Isolation

• Module-level isolation

• Channel-to-system isolation

HART Capability

• HART Communication: Supported

• Functionality: Device diagnostics and parameter access for HART-compatible field devices

Communication

• Interface: ESB bus / ER bus via FIO Node Unit

• Compatible Node Units: ANB10S, ANB10D, ANT502 series

• Diagnostics: Output status monitoring, module self-diagnostics, communication error detection

Electrical Characteristics

• Power Supply: Provided by FIO base unit

• Redundancy: Module can be configured in dual-redundant systems

Mechanical Specifications

• Form Factor: Plug-in FIO module

• External Wiring: Pressure clamp terminal connection

• Dimensions: 120 × 25 × 130 mm

• Weight:  0.3 kg

• Installation: Mounted in FIO base units within node assemblies

Environmental Conditions

• Operating Temperature: 0 °C to +55 °C

• Storage Temperature: -20 °C to +70 °C

• Relative Humidity: 10% to 90% RH, non-condensing

• Vibration Resistance: Compliant with IEC industrial standards