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Honeywell CC-TAIX11
Product Name: 16-Channel Redundant Analog Input IOTA (Termination Assembly)
Product Overview: The CC-TAIX11 (part number 51308365-175) is a redundant Analog Input IOTA within Honeywell’s Experion Series C I/O family. It provides the physical field termination interface for redundant high-level analog input modules (e.g., CC-PAIX02), acquiring voltage and current signals from field transmitters and delivering them to the C300 controller.
Detailed content
Key Technical Specifications:
- Model: CC-TAIX11 (51308365-175)
- Type: Redundant Analog Input IOTA
- Channels: 16 analog input channels (12 single-ended, 4 differential)
- Input Signal Types: Voltage and current
- Voltage Input Ranges: -10 V to +10 V, 0–10 V, 1–5 V, 0.4–2 V
- Current Input Range: 4–20 mA (via 250Ω shunt)
- Resolution: 16-bit A/D conversion
- Accuracy: ±0.2% of full scale (typical)
- Response Time: ≤2 ms
- Isolation: 500 V (channel-to-system)
- Common Mode Rejection Ratio (CMRR): 70 dB (DC to 60 Hz, 500Ω source imbalance)
- Normal Mode Rejection Ratio (NMRR): 19 dB at 60 Hz
- Input Impedance: >10 MΩ (voltage inputs, powered)
- Input Scan Rate: 50 ms
- Operating Voltage: 12–24 VDC
- Operating Temperature: -40°C to +70°C
- Humidity: 0–95% non-condensing
- Weight: 0.38 kg
- Dimensions: 29.4 cm × 12.0 cm × 7.0 cm
Functional Features:
- Dual-slot redundant architecture with bumpless transfer
- 500 V galvanic isolation between field loops and internal system electronics
- Native support for 4–20 mA HART loop protocol
- DIN-rail or panel mountable
- Non-incendive field power (Class 1, Div 2) with individually protected current-limiting circuits – no external fusing required
Working Principle: The IOTA terminates field wiring and routes signals to the redundant pair of analog input modules. The 16-bit ADC layer translates continuous analog and HART digital signatures within a deterministic response window, preserving channel-to-channel separation. On primary module fault, the secondary module immediately assumes signal processing without interrupting the loop.
Application Scenarios: High-reliability data acquisition in Honeywell distributed control systems; suitable for unconditioned field enclosures due to extended temperature range; process control and DCS instrumentation across oil & gas, chemical, and power industries.
Installation & Usage Notes:
- Affix vertically or horizontally onto a grounded standard DIN rail.
- Isolate all 12–24 VDC system power before attaching electronic modules.
- Use shielded twisted-pair cables for 4–20 mA and voltage connections; terminate shield at a single point on the enclosure instrument ground bus.
- Maintain separation from high-current AC routing inside the cabinet.
- Verify redundant module seating and run Experion engineering software diagnostics before startup.
