Yokogawa AIP571

Description

1. Product Overview

2. Product Parameters

2.1 Core Fieldbus Specifications

• Protocol Support: FOUNDATION Fieldbus H1 (IEC 61158-2)
• Number of H1 Segments: 2 independent segments
• Maximum Devices per Segment: 32 (including master)
• Communication Speed: 31.25 kbps (standard Fieldbus H1)
• Segment Length: Up to 1900 m (copper cable), up to 10 km (fiber optic with media converter)
• Intrinsic Safety: Supports FISCO/FNICO intrinsically safe segments (Ex ia IIC T6)

2.2 Electrical Parameters

• Power Supply: 24 VDC ±10% (from CENTUM VP backplane)
• Power Consumption: ≤15 W (normal operation)
• Bus Power: 12–32 V DC, max 350 mA per segment (for field devices)
• Isolation: 2500 VAC between segments, 2500 VAC between Fieldbus and DCS backplane
• Surge Protection: IEC 61000-4-5 compliant (2 kV surge immunity for bus lines)

2.3 Environmental & Mechanical Parameters

• Operating Temperature: 0°C to +55°C
• Storage Temperature: -20°C to +70°C
• Relative Humidity: 5%–95% (non-condensing, no dew formation)
• Protection Rating: IP20 (rack-mounted in control cabinet)
• Dimensions: 100 mm × 260 mm × 45 mm (L×W×H)
• Mounting: Yokogawa CENTUM VP S2 I/O racks (7-slot or 14-slot)

2.4 Certification & Compatibility

• Certifications: CE, UL 61010-1, ATEX II 2G Ex ia IIC T6, IECEx, SIL 2 (per IEC 61508)
• Compatible Systems: Yokogawa CENTUM VP DCS, FOUNDATION Fieldbus-certified field devices (transmitters, valves, analyzers), ProSafe-RS safety system
• Diagnostic Features: Device status monitoring, segment health checks, fault localization, bus power monitoring
• Software Compatibility: CENTUM VP Engineering Environment (CEE), FieldMate device management software

3. Advantages & Features

1. Dual Fieldbus Segments: YOKOGAWA AIP571 supports two independent H1 segments, enabling flexible system design and redundancy for critical process loops (e.g., reactor feed control).
2. Intrinsic Safety Compliance: The module is certified for intrinsically safe installations, making YOKOGAWA AIP571 suitable for hazardous areas (Zone 0/1) in refineries, chemical plants, and offshore platforms.
3. Hot-Swappable Design: YOKOGAWA AIP571 can be replaced or installed while the DCS is operational, eliminating downtime for maintenance and improving overall system availability.
4. Advanced Diagnostics: Real-time monitoring of segment health, device status, and bus power allows YOKOGAWA AIP571 to detect faults (e.g., short circuits, device failures) early, simplifying troubleshooting and reducing process disruptions.
5. Seamless Device Integration: YOKOGAWA AIP571 is compatible with all FOUNDATION Fieldbus-certified devices, enabling plug-and-play integration with transmitters, valves, and analyzers from leading manufacturers.

4. Application Fields & Cases

4.1 Application Fields

• Oil & Gas: Refinery process control, offshore platform monitoring, pipeline flow/pressure sensing
• Chemical Processing: Reactor temperature/pressure control, distillation column level monitoring, batch process automation
• Power Generation: Boiler feedwater control, turbine lube oil system monitoring, flue gas analysis
• Pharmaceuticals: Bioreactor process control, cleanroom environmental monitoring, filling line automation

4.2 Typical Cases

1. Refinery Distillation Column Control: A major oil refinery deployed YOKOGAWA AIP571 to connect 24 FOUNDATION Fieldbus pressure/temperature transmitters and 8 control valves to the CENTUM VP DCS. The module’s dual segments provided redundancy for critical loops, reducing unplanned downtime by 25%.
2. Chemical Reactor Automation: A specialty chemical manufacturer used YOKOGAWA AIP571 to integrate flow meters, level sensors, and pH analyzers into a batch reactor control system. The module’s intrinsic safety certification allowed installation in a Zone 1 hazardous area, ensuring compliance with safety regulations.
3. Power Plant Boiler Monitoring: A coal-fired power plant integrated YOKOGAWA AIP571 with boiler tube temperature transmitters and feedwater control valves. The module’s advanced diagnostics detected a faulty valve positioner early, preventing a boiler trip and saving $300,000 in potential production losses.

5. Competitor Comparison

6. Selection Suggestions & Precautions

6.1 Selection Suggestions

1. Segment Requirements: YOKOGAWA AIP571 (2 segments) is ideal for medium-to-large Fieldbus installations; for small systems (1 segment), select Yokogawa AIP570 (single-segment module).
2. Hazardous Area Needs: Choose the ATEX/IECEx-certified version of YOKOGAWA AIP571 for Zone 0/1 hazardous areas; standard versions are suitable for non-hazardous environments.
3. Device Compatibility: Verify that field devices are FOUNDATION Fieldbus H1-certified before integration with YOKOGAWA AIP571 to ensure seamless communication.

6.2 Precautions

1. Wiring Guidelines: Use twisted-pair shielded cable (18–24 AWG) for Fieldbus segments; ground shielding at one end only to avoid ground loops. Maintain proper cable distance from high-voltage lines to minimize EMI.
2. Segment Configuration: Configure bus power and termination resistors (100 Ω) correctly for each segment using CENTUM VP CEE; avoid overloading segments with more than 32 devices.
3. Maintenance Safety: Follow intrinsic safety guidelines when working on live segments in hazardous areas; use hot-swapping only when the module is marked as safe for replacement (per ATEX/IECEx standards).
4. Diagnostic Monitoring: Enable real-time fault alerts for YOKOGAWA AIP571 in the DCS HMI to quickly identify segment issues (e.g., low bus power, device disconnections).

IC693MDL740 PLCDCS
IC693MDL641 PLC
IC693MDL655 GE PLC
IC693MDL645 GE PLC
IC693MDL930 GE PLC
GE IC693MDL752 PLC
IC693CPU331 PLC
IC693CP1364 GE PLC
IC693MDL741 GE
IC693NTU004 DCS
IC693CPU311 GE PC
IC693CPU331 PLCPLC
IC693CPU364 PLC