Yokogawa AIP171-S2 Module

Product Introduction

The Yokogawa AIP171-S2 is a high-performance analog input module designed for integration with the CENTUM VP Distributed Control System (DCS). Engineered for reliability and precision, the AIP171-S2 supports a wide range of analog signal inputs, including voltage and current signals, making it suitable for a broad spectrum of industrial automation applications.

This module features isolated input channels that enhance signal integrity and prevent ground loop issues. With its rugged build quality, modular architecture, and hot-swappable capability, the AIP171-S2 ensures seamless operation even in harsh environments. It is widely used in industries such as oil & gas, petrochemical, power generation, water treatment, and more.

Product Advantages

• High Channel Density: Accommodates up to 16 analog input channels, optimizing control panel space.

• Advanced Signal Isolation: Isolated channels help minimize noise and interference.

• Hot Swappable: Enables maintenance without system shutdown, ensuring high system availability.

• Precision Measurement: High-resolution input ensures accurate data acquisition.

• Robust Build Quality: Suitable for use in demanding industrial environments.

• Seamless Integration: Fully compatible with the Yokogawa CENTUM VP and ProSafe-RS systems.

Technical Specifications

Product Applications

• Oil & Gas Industry: Monitoring pressure, temperature, and flow sensors on offshore and onshore rigs.

• Chemical & Petrochemical Plants: Input for chemical reaction process control and monitoring.

• Power Generation: Measurement of analog signals from turbines, boilers, and transformers.

• Water & Wastewater Treatment: Continuous monitoring of water quality parameters.

• Pulp and Paper Mills: Analog input from instrumentation in pulp preparation and paper machines.

• Food & Beverage Processing: Signal input from temperature and humidity sensors in processing lines.

Compatible and Supported Models

The AIP171-S2 is designed to operate with the following Yokogawa systems and modules:

• VP6B1710 (Base Unit for Analog I/O)

• PW402 (Power Supply Module)

• ALR121-S1 (Loop Relay Module)

• YCB301 (Control Bus Cable)

• CPU Modules: AFV10D / AFV30D (CENTUM VP Controller)

• Yokogawa Field Instruments (Temperature transmitters, flowmeters, etc.)

Installation Instructions

1. Safety First: Ensure all power sources to the control panel are switched off before installation.

2. Mounting the Module: Insert the AIP171-S2 module vertically into the designated slot on the base unit (VP6B1710).

3. Secure the Module: Once inserted, lock the module using the side latches to ensure firm mechanical contact.

4. Wiring the Inputs: Connect the analog input signals to the screw terminals on the base unit associated with the AIP171-S2.

5. Power Connection: Ensure the base unit is powered by a regulated 24 V DC source. The module receives power from the base.

6. System Configuration: Using the CENTUM VP engineering tool, configure each input channel for signal type, scaling, and diagnostics.

7. Hot Swap: The module can be replaced without shutting down the system, thanks to the hot-swappable feature.

8. Final Checks: Power up the system and verify module recognition and input signal readings from the HMI or engineering station.

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FAQ (Frequently Asked Questions)

Q1: What is the primary function of the AIP171-S2 module?
A1: The AIP171-S2 is designed to collect analog signals (such as 4–20 mA or 1–5 V) from field instruments and transmit them to the DCS system for processing and monitoring.

Q2: Can the AIP171-S2 handle HART communication signals?
A2: No, the AIP171-S2 does not support HART. For analog input with HART protocol, the ADV151-P03 model is recommended.

Q3: Is the AIP171-S2 hot-swappable?
A3: Yes, it can be replaced or removed while the system is powered on, which enhances maintenance efficiency.

Q4: What tools are required to configure the AIP171-S2?
A4: Configuration is performed via Yokogawa’s CENTUM VP engineering workstation using the corresponding software environment.

Q5: How do I verify if the module is working correctly after installation?
A5: Once installed, the module’s LED indicators will show its operational status, and signal readings can be confirmed from the operator station or engineering interface.

Q6: What is the difference between AIP171-S2 and AIP171-S1?
A6: The AIP171-S2 is an updated version with improved noise immunity and stability. Both offer similar input specifications but may differ in firmware compatibility.