Technical Specifications
- Manufacturer: General Electric (GE Fanuc / Emerson Automation)
- Model: IC200ALG620
- Series: VersaMax PLC System
- Module Type: RTD / Resistance Analog Input Module
- Input Channels: 4 independent RTD input channels
- Resolution: 16-bit (15 bits plus sign)
- Supported RTD Types:
- Platinum: 25Ω, 100Ω, 1000Ω (PT100, PT1000)
- Copper: 10Ω, 50Ω, 100Ω
- Nickel: 100Ω, 120Ω
- Nickel/Iron: 604Ω
- Resistance Ranges: 0–500Ω, 0–3000Ω (software-selectable per channel)
- Wiring Configuration: 3-wire and 4-wire RTD connections supported
- Update Rate:
- 60Hz line frequency: 210ms per channel
- 50Hz line frequency: 230ms per channel
- Accuracy (at 25°C):
- Resistance measurement: ±0.15% of full scale
- Temperature measurement: ±0.15% of full scale
- Isolation:
- Channel-to-logic: 250VAC continuous; 1500VAC for 1 minute
- Optical isolation between user input and logic/frame ground
- Power Consumption:
- 5V backplane: 125mA maximum
- 3.3V backplane: 125mA maximum
- LED Indicators:
- OK: Green (normal operation); Amber (module fault)
- FLD PWR: Indicates backplane and field power presence
- Dimensions (W×H×D): 110mm × 66.8mm × 50mm
- Weight: 0.25kg (0.55lbs)
- Operating Temperature: 0°C to +60°C (32°F to 140°F)
- Storage Temperature: -40°C to +70°C (-40°F to 158°F)
- Relative Humidity: 5%–95% (non-condensing)
- Certifications: CE, UL, CSA (industrial safety and EMC compliance)
- Protection Class: IP20
- Mounting: DIN rail or VersaMax I/O carrier
Key Features
- Internal RTD Excitation: Generates excitation current onboard, removing the need for external power supplies and simplifying wiring.
- Multi-RTD Compatibility: Supports platinum, copper, nickel, and nickel/iron RTDs, accommodating diverse industrial temperature sensing needs.
- 16-Bit High Resolution: Provides precise resistance-to-digital conversion for accurate temperature readings.
- Dual Resistance Ranges: Software-selectable 0–500Ω and 0–3000Ω ranges for flexible measurement of low to high resistance sensors.
- Comprehensive Diagnostics: Detects open wire, input short, underrange, overrange, and high/low alarm conditions for proactive maintenance.
- Automatic Calibration: Performs A/D calibration at power-up and periodically to compensate for ambient temperature changes, ensuring long-term stability.
- Line Frequency Filtering: Optimizes update rates for 50Hz or 60Hz environments to minimize power-line noise interference.
- Hot-Swappable Design: Supports replacement during system operation without shutting down the PLC.
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