Company Information
E-mail		sales@xmjzjsgs.com
Mobile		+8613666033393
Whatsapp		+8613666033393
WeChat		13666033393
Add		Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China

Product Introduction

The Yokogawa ADV142-S02 is a high-reliability Digital Input (DI) module engineered for demanding industrial applications within Yokogawa’s CENTUM VP and ProSafe-RS platforms. It is used to interface with external digital field devices, receiving discrete signals such as switch statuses, contact closures, or binary indicators.

This module supports 16 channels of voltage-free digital input, each optically isolated to prevent ground loop interference and signal degradation. The ADV142-S02 is particularly suited for applications where safety integrity and signal precision are critical, such as in Safety Instrumented Systems (SIS) or Emergency Shutdown (ESD) systems.

With its compact footprint, environmental resilience, and diagnostic features, the ADV142-S02 is an excellent choice for engineers seeking durability, integration flexibility, and long-term operational stability in digital input interfacing.

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Product Specifications

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Product Applications

The ADV142-S02 is designed for digital signal acquisition in mission-critical process control and safety systems. Its applications span a wide range of industries:

• Oil and Gas: Monitoring valve positions, pressure switches, and emergency pushbuttons in hazardous environments.

• Chemical Plants: Receiving binary signals from alarms, level switches, and safety interlocks.

• Power Generation: Used in turbine control systems, boiler protection, and distributed I/O subsystems.

• Water Treatment: Monitoring digital inputs from pump controls, gate valves, and flow switches.

• Steel and Metallurgy: Capturing digital inputs for interlock and safety control in rolling mills and furnaces.

• Pharmaceutical Manufacturing: Interface with limit switches and safety sensors in cleanroom automation.

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Product Advantages

• Channel-Level Isolation: Each input is optically isolated, ensuring high signal integrity and electrical safety.

• Safety Integrity Level (SIL3): Certified for use in high-reliability safety instrumented systems (when combined with ProSafe-RS).

• Diagnostics-Friendly: Channel LEDs provide instant feedback on signal status, simplifying maintenance.

• Environmental Robustness: Operates effectively in extended temperature and humidity ranges.

• Compact Form Factor: Space-saving design ideal for dense I/O cabinets and modular systems.

• Long Lifecycle Support: Designed in line with Yokogawa’s strategy for long-term system compatibility and spares availability.

• Redundancy Ready: Fully compatible with redundant system architectures for critical operations.

• Global Certifications: Certified for international deployment in hazardous and regulated industries.

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Frequently Asked Questions (FAQ)

1. What kind of signals can the ADV142-S02 receive?
   It receives dry contact or voltage-free digital signals from binary field devices.

2. Is the module suitable for safety applications?
   Yes, it is SIL3 certified when integrated with Yokogawa’s ProSafe-RS system.

3. How many channels does the module support?
   It supports 16 optically isolated digital input channels.

4. Can this module operate in high-temperature environments?
   Yes, it is rated for continuous operation up to +70°C.

5. Does each input channel have signal indication?
   Yes, each channel features a front-panel LED for status indication.

6. What is the response time for input detection?
   Typical signal detection delay is less than 10 milliseconds.

7. Is this module hot-swappable?
   No, it should be replaced while the system is powered down, unless the system architecture allows redundancy.

8. Does it require shielding or grounding for noisy environments?
   While the inputs are optically isolated, proper field wiring practices are still recommended.

9. What is the recommended power supply voltage?
   The input side operates at a nominal 24 VDC, supplied by the field.

10. Is the module compatible with other Yokogawa systems?
    Yes, it is compatible with CENTUM VP, ProSafe-RS, and related control systems.

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常见问题 (FAQ)

1. ADV142-S02 可以接收哪些类型的信号？
   它接收来自二进制现场设备的干触点或无电压数字信号。

2. 该模块适用于安全应用吗？
   是的，与横河电机的ProSafe-RS系统集成后，它已通过SIL3认证。

3. 该模块支持多少通道？
   支持16个光电隔离的数字量输入通道。

4. 此模块可以在高温环境下工作吗？
   是的，它的额定连续工作温度高达 +70°C。

5. 每个输入通道都有信号指示吗？
   是的，每个通道都有一个前面板LED用于状态指示。

6. 输入检测的响应时间是多少？
   典型的信号检测延迟小于10毫秒。

7. 此模块可以热插拔吗？
   不可以，除非系统架构允许冗余，否则应在系统断电时进行更换。

8. 在嘈杂的环境中是否需要屏蔽或接地？
   虽然输入是光隔离的，但仍然建议采用正确的现场布线方法。

9. 建议的电源电压是多少？
   输入侧以标称 24 VDC 运行，由现场供电。

10. 该模块与其他横河电机系统兼容吗？
    是的，它与 CENTUM VP、ProSafe-RS 和相关控制系统兼容。

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