Yokogawa AAI135-S03/K4A00 Analog Input Module – Product Description

Overview

The Yokogawa AAI135-S03/K4A00 is a high-performance analog input module designed for precise measurement in CENTUM VP and ProSafe‑RS systems. Moreover, its compact rack-mounted design allows for high channel density while maintaining excellent reliability in mission-critical industrial environments.

Technical Specifications

Electrical & I/O

• Number of Channels: 16 analog input channels

• Signal Types Supported: 4–20 mA DC current input, 1–5 V DC voltage input

• Resolution: 16-bit A/D conversion

• Accuracy: ±0.1% of full scale (typical)

• Input Impedance: Current mode 250 Ω, Voltage mode ≥1 MΩ

• Isolation: Channel-to-channel and channel-to-system

• Power Supply: 24 V DC via system backplane

Performance

• Response Time: ≤10 ms per channel

• Noise Immunity: High resistance to electrical noise and EMI

• Diagnostics: LED indicators for module status, built-in self-test, fault detection

• Reliability: Continuous 24/7 operation

• Redundancy: Supports dual redundant configuration

Mechanical

• Mounting: Rack-mounted in Yokogawa system backplane

• Dimensions (W × H × D): 130 × 130 × 32 mm

• Weight: 0.5 kg

• Cooling: Natural convection

• Protection: IP20

Communication & Integration

• Interface: Proprietary Yokogawa ESB bus

• Compatibility: CENTUM VP DCS and ProSafe‑RS SIS

• Configuration: Managed via Yokogawa engineering tools

Environmental & Compliance

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

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

• Relative Humidity: 5–95% non-condensing

• Certifications: CE, UL, CSA, IEC 61508 SIL2

• Origin: Manufactured in Japan

FAQ

Q1: How many analog channels does this module support?
It provides 16 analog input channels for current and voltage signals.

Q2: What is the input voltage and current range?
4–20 mA for current inputs and 1–5 V for voltage inputs.

Q3: Can it operate continuously in critical systems?
Yes, it is designed for 24/7 operation in mission-critical environments.

Q4: Does it support redundancy for reliability?
Yes, dual redundant configuration is supported.

Q5: How can I monitor module status?
LED indicators display channel and module status along with fault conditions.