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General Electric ISx2yYAICS1B Safety Instrumented System
The IS220YAICS1B/IS420YAICS1B (ISx2yYAICS1B, x=2/4, y=0/1) is a safety-grade analog I/O module from the GE Mark VIeS series, used for analog signal acquisition and output in SIL 3 Safety Instrumented Systems (SIS). It features a redundant architecture, fail-safe design, and hazardous area certification, making it suitable for emergency shutdown/safety interlock scenarios in turbine and process industries. The following are core parameters and application details:
Core Performance
Signal Acquisition and Output Capabilities
Channels: 4-channel safety analog input (4-20mA/0-10V) + 2-channel safety analog output (4-20mA), with electrical isolation between channels to prevent fault propagation.
Accuracy: 24-bit ADC/DAC, sampling rate up to 16kHz, supports SIL 3 measurement and control, suitable for critical parameter monitoring.
Safety: Fail-safe design; output locks to a safe state in the event of power failure/fault, meeting IEC 61508 SIL 3 requirements.
Redundancy and Communication Features
Redundancy: Dual redundancy for power and communication, IONet redundant links, seamless switching in case of single module/link failure, ensuring continuity of safety functions.
Communication: Dual 100M Ethernet, real-time interaction with Mark VIeS safety controller, supporting ControlST remote safety diagnostics.
Diagnostics: Channel-level self-diagnostics + module-level health monitoring, LED indicators for fault status, quickly locating channel/communication/power anomalies.
Safety and Environmental Features
Certifications: Class 1 Div 2/ATEX explosion-proof, suitable for deployment in hazardous areas.
Environment: Operating temperature -30℃ to 65℃, vibration/shock resistant, adaptable to harsh industrial environments.
Maintenance: Hot-swappable design, online replacement without interrupting safety functions, supports system-level safety state recovery.
Email: xmxblynn@163.com
Phone: +86 18059884797
Key Technical Parameters
Parameter Value
Model IS220YAICS1B/IS420YAICS1B (Mark VIeS YAIC Safety Analog I/O Module)
Compatible System GE Mark VIeS Safety Control System (SIS)
Channel Configuration 4 AI (4-20mA/0-10V) + 2 AO (4-20mA)
Accuracy 24-bit ADC/DAC, sampling rate up to 16kHz
Safety Class IEC 61508 SIL 3, fail-safe design
Communication Interface Dual 100M Ethernet (IONet redundancy)
Power Supply Input 24-28VDC redundancy, supports hot-swapping
Operating Temperature -30℃ to 65℃
Installation Method Standard Mark VIeS rack mount, compatible with ISx0ySTAIS1A/ISx0yTBAIS1C terminal blocks
Compliance Class 1 Div 2, ATEX, CE/UL, IEC 61508 SIL 3 Status Mark VIeS In-Service Spare Part, used for safety simulation I/O module replacement.
Typical Applications:
Turbine Safety Monitoring: Acquisition of critical parameters such as shaft vibration, oil pressure, and temperature in gas/steam turbines to trigger emergency shutdown (ESD) interlocks.
Process Industry Safety Control: In petrochemical/chemical SIS systems, monitoring parameters such as pressure, level, and flow rate to achieve safe shutdown/venting control.
Redundant Safety Deployment: Dual redundancy ensures continuity of safety functions, adapting to the high availability and safety requirements of critical equipment.
Spare Part Replacement and Upgrade: Compatible with existing Mark VIeS systems for replacing fail-safe simulation modules, supporting automatic safety configuration recovery.
Email: xmxblynn@163.com
Phone: +86 18059884797
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