General Information
– Brand: GE (General Electric), GE Power/GE Multilin
– Model: IS200SCSAS1ADB (SCSA Series)
– Product Name: Mark VIeS Safety I/O Expansion Board
– Type: Safety-critical I/O expansion module for Mark VIeS control system
Electrical Specifications
– Control Power: 24 VDC (system side), isolated design
– Analog Inputs: 10 channels 4–20 mA (with 10 channels 24 VDC transmitter power outputs); 6 channels externally powered 4–20 mA; 3 channels thermocouple inputs (types K/J/T/E/R/S/B/N)
– Digital Inputs: 3 channels isolated contact inputs, 24 VDC
– Digital Outputs: 3 channels isolated contact outputs, rated 5 A @ 250 VAC/30 VDC
– Electrical Isolation: Reinforced isolation between channels and system side, compliant with safety standards
– Communication: Communicates with TCSA terminal board via system backplane, supporting TMR architecture

Performance Parameters
– Core Functions: Safety I/O signal acquisition and control, compatible with YSIL Core safety protection logic, supporting Emergency Trip Relay (ETR) logic
– Safety Rating: SIL 3 safety integrity level compliant
– Diagnostics: Comprehensive channel diagnostics, fault alarm and indication
Environmental Parameters
– Operating Temperature: 0°C to 60°C
– Storage Temperature: -40°C to 85°C

– Relative Humidity: 5%–95% (non-condensing)
– Protection Class: IP20 (rack-mounted)
Mechanical Specifications
– Dimensions: Standard Mark VIeS I/O board size, approx. 229 mm×178 mm×50 mm
– Weight: Approx. 0.8 kg
– Mounting: Mark VIeS standard I/O rack, hot-swappable






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