YOKOGAWA A2EE1A-T ESB Bus Adapter

The Yokogawa A2EE1A-T is an ESB Bus Adapter designed for Yokogawa's CENTUM VP and CENTUM CS 3000 Distributed Control Systems (DCS). This specialized hardware module mounts directly onto an interface module (such as the SB401) to establish high-speed, reliable communication links between a Field Control Unit and extension node units. By integrating a built-in termination resistor, the A2EE1A-T effectively prevents signal reflection and electrical noise across the transmission line, ensuring seamless data integrity and continuous system uptime in critical industrial automation environments.

Operating Temperature: 0°C to 50°C (32°F to 122°F)

Storage Temperature: -20°C to 70°C (-4°F to 158°F)

Withstanding Voltage: Supports up to 500 V AC for 1 minute

Insulation Resistance: Minimum of 20 MΩ measured at 500 V DC

Ambient Humidity: between 10% and 90% RH (Relative Humidity, non-condensing)

Q1. What are Yokogawa's three main business segments?

A1: Yokogawa operates through three core business segments:

Energy & Sustainability – Solutions for oil & gas, petrochemicals, and renewable energy.

Materials & Life Sciences – Systems for chemicals, pharmaceuticals, and food & beverage.

Measurement & Intelligence – Test instruments, pressure transmitters, flow meters, and industrial IoT.

Q2: What is Yokogawa best known for in the industrial automation industry?

A2: Yokogawa is best known for its Distributed Control Systems (DCS) , having introduced the world's first DCS, the CENTUM, in 1975 . The company is also renowned for its high-precision single-crystal silicon resonant differential pressure/pressure transmitters, which achieve ±0.04% accuracy and 0.01% long-term stability . Yokogawa's DCS product line has evolved to its tenth generation (CENTUM VP), with over 30,000 systems installed globally across industries such as oil & gas, chemicals, power, and pharmaceuticals.

Q3: What is Yokogawa's most famous product outside of DCS systems?

A3: Outside of its CENTUM DCS, Yokogawa is world-famous for its single-crystal silicon resonant pressure transmitters (EJA series). These transmitters achieve ±0.04% accuracy and 0.01% long-term stability per year, making them the industry benchmark for high-precision pressure measurement. They are widely used in custody transfer, flow compensation, and critical process control applications.

3500/70M 176449-09

125800-01

CA303 144-303-000-011

444-680-000-411

135489-03

3500/42 176449-02

CA306 144-306-000-321

S3960 444-680-000-511

3500/92  136180-01

128229-01

GSV142 244-142-000-103

EA402 913-402-000-013

136188-02

3500/61 133811-02

S3960 GSI 127 244-127-000-017 A1-B02

GSI124 244-124-000-022

3500/15 106M1079-01

133819-02

IQS450 204-450-000-002

CA202 144-202-000-205

106M1081-01

AF70982 111-412-000-012

S3960 444-680-000-511

TQ412 S3960 111-412-000-013

3500/33 149986-01

CP235 143-235-000-012

TQ403 111-403-000-012

CE281 444-281-000-111

149992-01

CP232 143-232-000-222

GSI130 244-130-000-204

CP515 143-515-000-111